EX-99.3 4 dex993.htm TECHNICAL REPORT ON THE UPDATED RESOURCE ESTIMATES ON THE MERENSKY REEF Technical Report on the Updated Resource Estimates on the Merensky Reef

Exhibit 99.3

TECHNICAL REPORT ON THE

UPDATED RESOURCE ESTIMATES ON THE MERENSKY

REEF AND UG2 DEPOSITS

GA-PHASHA PLATINUM GROUP

METALS PROJECT

EASTERN LIMB, BUSHVELD COMPLEX

LIMPOPO PROVINCE

REPUBLIC OF SOUTH AFRICA

Latitude 24° 20’ S

Longitude 30° 00’ E

Qualified Persons

David M.R. Stone, P.Eng.

MINEFILL SERVICES, INC.

and

Gordon Chunnett, Pr.Sci.Nat.

Anglo Platinum Limited

Date of Report: October 19 2007

Effective Date: June 2006


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TABLE OF CONTENTS

 

1        EXECUTIVE SUMMARY      9   
   1.1        Geological Setting      9   
   1.2    Merensky Reef Resource Estimate      9   
     

1.2.1  Data Sources

     10   
     

1.2.2  Estimation and Classification

     12   
     

1.2.3  Geological Losses

     13   
     

1.2.4  Geological Horizons

     13   
     

1.2.5  Results of Merensky Reef Estimate

     14   
     

1.2.6  Grade cut-off

     15   
   1.3    UG2 Resource Estimate      16   
     

1.3.1  Grade cut-off

     16   
   1.4    Conclusions and Recommendations      17   
2    INTRODUCTION AND TERMS OF REFERENCE      18   
3    RELIANCE ON OTHER EXPERTS      19   
4    PROPERTY DESCRIPTION AND LOCATION      19   
   4.1    General      19   
   4.2    Ownership      22   
   4.3    Surface Rights      23   
   4.4    Anooraq-Pelawan Agreement      23   
   4.5    Ga-Phasha Joint Venture      24   
     

4.5.1  Objectives

     24   
     

4.5.2  Management

     24   
     

4.5.3  Relationship to Micawber

     24   
     

4.5.4  Community Issues

     25   
     

4.5.5  Production Decision

     25   
     

4.5.6  Off-Take

     25   
   4.6    Anooraq Anglo Platinum Transaction Framework Agreement      25   
5    ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY      26   
   5.1    Access      26   
   5.2    Climate      26   
   5.3    Local Resources      27   
   5.4    Infrastructure      27   
   5.5    Environment      27   
6    HISTORY      27   
7    GEOLOGICAL SETTING      32   
   7.1    Stratigraphy      36   
     

7.1.1  UG1 Chromitite

     36   
     

7.1.2  UG2 Footwall Marker (FWM)

     38   
     

7.1.3  UG2 Chromitite (UG2)

     38   
     

7.1.4  UG3 Chromitite (UG3)

     38   
     

7.1.5  Merensky Reef

     39   
8    DEPOSIT TYPE      39   
9    MINERALIZATION      39   

 

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10    EXPLORATION      40   
  

10.1      Remote Sensing

     40   
  

10.1.1  Land Satellite Images

     40   
  

10.1.2  Aerial Photography

     41   
  

10.2      Geophysics

     41   
  

10.2.1  Magnetic Surveys - AeroMagnetics and Ground Magnetics

     41   
  

10.2.2  Seismic Surveys

     43   
  

10.2.3  Geothermal Gradients

     43   
  

10.2.4  Palaeomagnetics and Geochronology

     43   
  

10.2.5  Wireline Logging

     43   
  

10.3      Mapping/Trenching/Adits

     44   
11    DRILLING      45   
  

11.1      Merensky Reef

     45   
  

11.2      UG2 Reef

     46   
12    SAMPLING METHOD AND APPROACH      48   
13    SAMPLE PREPARATION, ANALYSIS, AND SECURITY      49   
  

13.1      ARC Procedures

     50   
  

13.1.1  Sample Preparation

     50   
  

13.1.2  Fire Assay – Four Element (lead collector)

     50   
  

13.1.3  Fire Assay ICP - 3E (Ag collector) & Fire Assay ICP Rh (Pd collector)

     50   
  

13.1.4  X-Ray Fluroescense XRF-ARC for Cu and Ni Analysis

     50   
  

13.2      AARL Procedures

     51   
  

13.2.1  Sample Preparation

     51   
  

13.2.2  Atomic Absorption Spectrometry AAORE

     51   
  

13.2.3  X-Ray Flourescence XRF

     51   
  

13.2.4  Fire Assay Inductively Coupled Plasma

     51   
  

13.2.5  Fire Assay ICP Rhodium

     52   
  

13.3      Specific Gravity

     52   
  

13.4      Sample Security

     52   
14    DATA VERIFICATION      52   
  

14.1      Reporting of Results

     52   
15    ADJACENT PROPERTIES      57   
  

15.1      Lebowa Platinum Mine

     57   
  

15.2      Twickenham Platinum Mine

     59   
  

15.3      Marula Platinum Mine

     60   
  

15.4      Modikwa Platinum Mine

     61   
16    MINERAL PROCESSING AND METALLURGICAL TESTING      62   
  

16.1      Merensky Recovery Rates

     62   
  

16.2      UG2 Recovery Rates

     62   
17    MINERAL RESOURCE ESTIMATES      64   
  

17.1      Data Sources – Merensky and UG2

     64   
  

17.1.1  Digital Information

     64   
  

17.1.2  Aeromagnetic and Landsat images

     64   
  

17.2      Merensky Reef Resource Estimate

     65   
  

17.2.1  Data Sources

     65   
  

17.2.2  Database Verification

     72   

 

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17.2.3    Compositing

     74   
  

17.2.4    Potholes in the Merensky Reef

     75   
  

17.2.5    Influence of Faults and Dykes

     76   
  

17.2.6    Geological Loss Determination

     78   
  

17.2.7    Merensky Reef Geozone Definitions

     79   
  

17.2.8    Classical Statistics

     80   
  

17.2.9    Cutting Strategy

     85   
  

17.2.10  Merensky Reef Variography (graphs are shown in Appendix 3)

     86   
  

17.2.11  Merensky Reef Geotechnical Considerations

     86   
  

17.2.12  Merensky Reef Mining Considerations

     87   
  

17.2.13  Merensky Reef Modelling

     88   
  

17.2.14  Merensky Reef Resource Estimate

     97   
  

17.2.15  Resource Classification

     98   
  

17.2.16  Resource Estimate and Classification Avoca and De Kamp Farms

     99   
  

17.2.17  Grade cut-off

     100   
  

17.3    UG2 Resource Estimate

     100   
  

17.3.1    Data sources

     100   
  

17.3.2    Data Validation

     106   
  

17.3.3    UG2 Compositing

     107   
  

17.3.4    UG2 Geological Losses

     108   
  

17.3.5    UG2 Geozone Definitions

     110   
  

17.3.6    UG2 Cutting Strategy

     112   
  

17.3.7    UG2 Variography

     112   
  

17.3.8    UG2 Geotechnical Considerations

     113   
  

17.3.9    Mining Considerations

     114   
  

17.3.10  UG2 Modelling

     114   
  

17.3.11  UG2 Resource Estimation

     126   
  

17.3.12  UG2 Resource Classification

     127   
  

17.3.13  Resource Estimate and Classification Avoca and De Kamp Farms

     128   
  

17.3.14  Grade cut-off

     129   
18    OTHER RELEVANT DATA AND INFORMATION      130   
19    INTERPRETATION AND CONCLUSIONS      130   
  

19.1    Merensky Reef Resource Estimation

     130   
  

19.2    UG2 Resource Estimation

     131   
20    RECOMMENDATIONS      132   
  

20.1    Merensky Reef

     132   
  

20.2    UG2

     132   
21    REFERENCES      134   
22    DATE AND SIGNATURE      135   
23    CERTIFICATES      136   

 

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     APPENDICES       
1    Merensky Reef - Borehole Database Summary   
2    Merensky Reef - Histograms and Scatterplots   
3    Merensky Reef - Variograms   
   LIST of TABLES   
1.1    Borehole Summary Statistics – Merensky Reef      12   
1.2a            Merensky Reef Mineral Resources, Paschaskraal & Klipfontein Farms      15   
1.2b    Merensky Reef Mineral Resources, Avoca & DeKamp Farms      15   
1.3    UG2 Reef Mineral Resources, all farms      16   
4.2    Mineral Rights’ Details      23   
4.3    Surface Rights’ Details      23   
6.1    Operating Cost Summary      30   
6.2    Capital Cost Summary      30   
6.3    Unit Revenue Contributions      30   
6.4    Ga-Phasha Project – Mineral Resources – February 2004      31   
6.5    Ga-Phasha Project – Mineral Resources – December 2006      31   
11.1    Merensky Reef Borehole Database Summary      45   
11.2    UG2 Reef Borehole Database Summary      47   
14.1    Outliers as a Percentage of the Data      54   
14.2    Summary of Precision Data      54   
14.3    Data for the SARM71 Standard      55   
14.4    Outliers as a Percentage of the Data      55   
14.5    Summary of Precision Data for the Check Results      55   
14.6    Data for the SARM65 Standard      56   
14.7    Data for SARM7 Standard      56   
15.1    Anglo Platinum’s Resource Statement for Twickenham–Paschaskraal      60   
16.1    Merensky Reef Rougher Flotation Recovery and Grade      62   
16.2    PGE Flotation Test Results      63   
16.3    Base Metal Flotation Results      63   
16.4    Anglo Platinum’s Average Recovery Rates      63   
17.1    Merensky Reef Borehole Database Summary      65   
17.2    Geological Loss Summary      79   
17.3    Hangingwall “10 centimetre” Classical Statistics      81   
17.4    Merensky Reef Classical Statistics      81   
17.5    Merensky Reef Footwall “30 centimetres” Classical Statistics      82   
17.6    Merensky Reef Footwall “45 centimetres” Classical Statistics      82   
17.7    Search Parameter Summary      94   
17.8    Variogram Model Parameter Summary      95   

 

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17.9    Estimation Parameter Summary      96   
17.10    Merensky Reef Mineral Resources Paschaskraal & Klipfontein Farms      98   
17.11    Merensky Reef Mineral Resources Avoca & DeKamp Farms      99   
17.12    UG2 Borehole Database Summary      100   
17.13    UG2 Geological Loss Summary      110   
17.14a            Search Parameter Summary      122   
17.14b    Search Parameter Summary      123   
17.15a    Variogram Model Parameter Summary      123   
17.15b    Variogram Model Parameter Summary      124   
17.16a    Estimation Parameter Summary      125   
17.16b    Estimation Parameter Summary      125   
17.17    UG2 Reef Resource Estimate Paschaskraal & Klipfontein Farms      127   
17.18    UG2 Reef Resource Estimate Avoca & DeKamp Farms      129   
   LIST of FIGURES   
1.1    Ga-Phasha Validated Borehole Distribution      11   
1.2    Merensky Reef Resource Categories      13   
1.3    Ga-Phasha Resource Perimeters      14   
4.1    Regional Geology Plan of the Bushveld Complex      20   
4.2    Ga-Phasha Project Location      21   
4.3    Mineral Rights Holdings, Ga-Phasha Project Area      22   
7.1    Generalized Stratigraphy, Critical Zone Chromitites      33   
7.2    Section Line Plan      34   
7.3    Klipfontein Cross Section      35   
7.4    Paschaskraal Cross Section      36   
7.5    Generalized Statigraphic Column      37   
10.1    Landsat Image of the Ga-Phasha Project Area      41   
10.2    Black & White Aerial Photograph of the Ga-Phasha Project Area      42   
10.3    Aeromagnetic Survey Results, Ga-Phasha Project Area      43   
10.4    Typical UG2 Chromitite Layer Outcrop on the Farm Klipfontein      44   
11.1    Merensky Reef Validated Borehole Distribution      46   
11.2    Ga-Phasha Drill Hole Distribution      48   
15.1    Lebowa Platinum Project Area      57   
15.2    Twickenham Platinum Project Area      59   
15.3    Modikwa Platinum Project Area      61   
17.1    Spatial Distribution of Boreholes      66   
17.2    Weathering/Oxidation Perimeter      67   
17.3    Spatial Distribution of Boreholes with Prill Information      68   
17.4    Spatial Distribution of Boreholes without Assayed Prill Information      69   

 

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17.5    Spatial Distribution of Boreholes with Copper/Nickel Assay Information      70   
17.6    Spatial Distribution of Boreholes with Density Information      71   
17.7    Merensky Reef Borehole and Pothole Information      76   
17.8    Spatial Distribution of Faults and Dykes      77   
17.9    The 3 Geozones      80   
17.10    PGE Distribution of the Hanging Wall – 10 centimetres model      87   
17.11    Spatial Distribution of Boreholes, Better and Poor Informed Area      91   
17.12    Better Informed Area      92   
17.13    Poorly Informed Area      92   
17.14    Sample Search      93   
17.15    Final Merensky Reef Resource Classification      99   
17.16    Spatial Distribution of Boreholes      101   
17.17    Weathering / Oxidation Perimeter      102   
17.18    Spatial Distribution of Boreholes with Prill Information      103   
17.19    Spatial Distribution of Boreholes without Assayed Prill Information      104   
17.20    Spatial Distribution of Boreholes with Copper/Nickel Assay Information      105   
17.21    Spatial Distribution of Boreholes with Density Information      106   
17.22    UG2 Boreholes that Intersected Potholes      109   
17.23    Geotechnical Modelling      113   
17.24    Spatial Distribution of Boreholes      118   
17.25    Well Informed Area      119   
17.26    Poorly Informed Area      119   
17.27    Search Distance      120   
17.28    Sample Minimums      120   
17.29    PGE Grade      121   
17.30            Final UG2 Resource Classification      128   

 

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NOMENCLATURE AND ABBREVIATIONS

 

Abbreviation

   Unit or Description
4E or 4PGE    Pt+Pd+Rh+Au
3E or 3PGE    Pt+Pd+Rh
amsl    Above mean sea level
Au    Gold
EIA    Environmental Impact Assessment
Cu    Copper
EIS    Environmental Impact Study
g    Gram
g/t    Grams per tonne
H    Hour
ha    Hectare
IRR    internal rate of return
k    kilo or thousand
km    Kilometre
l    Litre
Mt    Million tonnes
m    Metre
Ni    Nickel
NPV    net present value
Pd    Palladium
PGE    platinum group elements
PGM    platunim group metals
Pt    Platinum
ppb    parts per billion
ppm    parts per million
t    Tonne
Rh    Rhodium
tpd    Tonnes per day
tpa    Tonnes per annum
US$    United States Dollars
ZAR    South African Rand

All dollar figures are in United States Dollars (US$), unless otherwise stated.

 

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1 EXECUTIVE SUMMARY

The following technical report was compiled by MineFill Services, Inc. for Anooraq Resources Corporation to document an estimate of the mineral resources in the UG2 and Merensky Reef mineral deposits on the Ga-Phasha property, located on the north-eastern limb of the Bushveld Complex in the Limpopo Province of the Republic of South Africa. Extensive use has been made of the internal Anglo Platinum information and documentation in the generation of this report.

The Ga-Phasha Joint Venture Project (“Ga-Phasha project”) is currently a 50/50 joint venture between Anooraq Resources Corporation (“Anooraq”) and Anglo Platinum Limited (“Anglo Platinum”). Via a transaction announced on September 4, 2007 news release, Anooraq can obtain an additional one percent interest in the Ga-Phasha Project. The Ga-Phasha project encompasses the following farms: Klipfontein 465KS (“Klipfontein”), Paschaskraal 466KS (“Paschaskraal”), De Kamp 507KS (“DeKamp”) and Avoca 472KS (“Avoca”).

New mineral resources were announced in the September 4, 2007 news release. These include mineral resources for the Merensky Reef deposit and additional resources for the UG2 and Merensky Reefs on the Avoca and DeKamp farms, as reported by Anglo Platinum in December 2006. Since that time, the results of updated resource estimates have been provided to Anooraq by Anglo Platinum, as reported in an Anooraq news release of October 24 2007. This report documents these most current resources for the Merensky Reef on the Pashaskraal, Klipfontein, Avoca and De Kamp farms and the UG2 Reef on the Avoca and DeKamp farms as well as restating those for the UG2 Reef as described in a June 2007 Technical Report.

 

1.1 Geological Setting

The area of the Ga-Phasha Project (the “Project area”) is underlain by the mafic phase of the Bushveld Complex that comprises: rocks of the Critical Zone (alternating sequences of gabbros, norites, anorthosites, pyroxenites and chromitites); and the Main Zone that consists of gabbros and ferrogabbros. The sequence mainly strikes northwest-southeast and dips at between 14 and 18 degrees southwest, with local steepening to nearly 20 degrees. Economic Platinum Group Metal (“PGM”) mineralisation occurs within the UG2 Reef horizon and Merensky Reef pyroxenites, which are are separated by approximately 400 metres of mafic and ultramafic cumulate rocks. The broad tectonic setting includes north-northeast and east-west trending dykes and fault/fractures.

The depth of weathering varies from less than seven metres to approximately 40 metres, especially in the valley areas. The depth of oxidation has been estimated as the depth of weathering plus, 20 metres. The average depth of oxidation within the Project area has been assumed to be 40 metres.

 

1.2 Merensky Reef Resource Estimate

The resource estimate for the Merensky Reef is based on work done by Anglo Platinum and their consultants. This includes drilling to May 2006, updating the resource model and estimating the grade of the 4PGE (comprising platinum, palladium and rhodium plus gold) Merensky Reef thickness, individual element (platinum, palladium, rhodium and gold) prill,

 

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base metal content (copper and nickel) and density distribution on the Paschaskraal and Klipfontein farms of the Ga-Phasha property. The resource contained beneath these farms has been modelled to the Klipfontein and Paschaskraal farm limits.

Extensive data and statistical analyses were completed to establish the parameters for the Merensky Reef resource estimate, which was completed by kriging using Datamine software. Included in this Technical Report are updated estimates of the resources on the Avoca and De Kamp farms completed by Anglo Platinum.

The Merensky Reef, the associated footwall mineralization and hangingwall considerations were independently evaluated for the June 2006 resource model. The immediate hangingwall of the Merensky Reef is characterized by the absence of chromitite stringers. Hence, a fixed ten centimetre hangingwall cut was evaluated as a potential overbreak consideration.

The Merensky Reef resource cut is reported for a variable mining width, based on the following considerations:

 

  a) ten centimetres of hangingwall dilution

 

  b) the Merensky Reef horizon itself

 

  c) a minimum ten centimetres of footwall dilution

 

  d) composited footwall components greater than 2.0 grams per tonne PGE

Where the sum of (a+b+c) or (a+b+d), (per Datamine Cell), was greater than 0.90 metres, the width was reported as the minimum resource cut width. However, where it is less than 0.90 metres in width, then the balance of the resource cut width was derived from additional footwall pyroxenite comprised of less than 2.0 grams per tonne material.

 

  1.2.1 Data Sources

The borehole database, as at June 2006, was sourced and supplied by Anglo Platinum; details of the Merensky and UG2 outcrops, faults, dykes, potholes and other geological features were also provided. The pothole features and geo-zones were re-visited and, where necessary, re-interpreted in accordance with the additional data logs. Figure 1.1 shows the Ga-Phasha borehole distribution: the black circles denote the validated dataset used in the evaluation; the magenta and outer orange lines represent the UG2 and Merensky Reef outcrop positions respectively; the green polygon represents reef remnants within the interpreted limits of a “mega slump” feature. One hundred percent of the potential resources within the blue outline were excluded from the evaluation. Resources between the blue and green polygons were interpreted as a “pothole edge” type facies and as such been evaluated independently. The inner orange line demarcates the boundary between fresh and oxidized Merensky Reef.

 

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LOGO

Figure 1.1 - Ga-Phasha Validated Borehole Distribution

In total, 116 boreholes, with 263 reef intersections, were added to the Ga-Phasha database for the 2006 resource update. Table 1.1 presents the borehole summary statistics of the validated dataset for the “pothole edge” and “normal” reef types. The FIELD column represents the nine different attributes being estimated.

 

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Table 1.1

Borehole Summary Statistics – Merensky Reef

 

     NORMAL      POTHOLE EDGE         

FIELD

   NSAMPLES      MEAN      NSAMPLES      MEAN      DIFF      % DIFF  
PGE      187         5.20         37         6.02         -0.82         -16
PT      187         3.18         37         3.85         -0.67         -21
PD      187         1.53         37         1.52         0.01         0.7
RH      187         0.15         37         0.27         -0.12         80
AU      187         0.32         37         0.38         -0.06         -19
CU      156         0.09         36         0.11         -0.02         -22
NI      156         0.23         36         0.26         -0.03         -13
SG      116         3.41         25         3.43         -0.02         -0.5
TRUETHK      219         0.91         43         0.48         0.43         47

The statistics summarized on Table 1.1 show a marked difference in the reef widths and rhodium values between the “normal” and “pothole edge” reefs. It must be noted, however, that the “pothole edge” consists of a relatively small dataset. This relationship should be investigated as a potential tool to identify “pothole edge” type reef zones.

 

  1.2.2 Estimation and Classification

The mineral resources were categorized according to the March 2000 South African Code for Reporting Mineral Resources and Mineral Reserves Guidelines (the “SAMREC Code”), by Anglo Platinum’s in-house Qualified Person for the project, Gordon Chunnett, Pr.Sci.Nat. In his opinion, the definitions and standards of the SAMREC Code are substantively similar to the definitions and standards of the Canadian Institute of Mining, Metallurgy and Petroleum (the “CIMM Standards”), which are recognized by the Canadian regulatory authorities and National Instrument (“NI”) 43-101. A reconciliation of resources defined by the SAMREC Code and the CIMM Standards does not provide a materially different result.

The Merensky Reef resource classification is shown in Figure 1.2. The red, green and blue cells represent the Measured, Indicated and Inferred resource categories, respectively. Black dots represent the full borehole dataset used. Note that not all the deflections have been analysed (for example, those taken for metallurgical testing) and that base metal and density analysis were not always performed on all of the old series boreholes, ie boreholes drilled prior to 2000 where a 4E gravimetric lead collection analytical method was employed.

 

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LOGO

Figure 1.2 – Merensky Reef Resource Categories

 

  1.2.3 Geological Losses

Geological losses are related to the presence of potholes (disruptions in the horizons related to local changes in strike, dip and other depositional features), faults, dykes and replacement features. A 27 percent geological loss factor has been applied for these features. In addition, A “slump” feature is present in the Merensky horizon. The “Slump” loss is reasonably well constrained (except towards the southwest) and this has been excluded as “known” losses. This area has been demarcated for additional drilling.

 

  1.2.4 Geological Horizons

Figure 1.3 shows the weathering/oxidation extents (“regolith”) and remnant resource perimeters for the Klipfontein and Paschaskraal farms. The regolith is indicated by the orange perimeters that represent the weathered or oxidized zone (estimated to be approximately 40 metres deep).

 

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LOGO

Figure 1.3 - Ga-Phasha Resource Perimeters

 

  1.2.5 Results of Merensky Reef Estimate

Table 1.2a summarizes the results of the Merensky Reef resource estimates on the Paschaskraal and Klipfontein farms. Table 1.2b summarizes the results of the Merensky Reef resource estimates on the Avoca and De Kamp farms.

 

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Table 1.2a

Merensky Reef Mineral Resources1,4 , Paschaskraal and Klipfontein Farms

0.9 metre minimum resource cut

 

Horizon

  

Category

   Width
(metres)
     Tonnes
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE  Ounces5
(millions)
 

REGOLITH

  

Measured

     1.44         0.83         4.05         2.44         1.25         0.14         0.23         0.11   
  

Indicated

     1.52         4.15         4.16         2.52         1.23         0.13         0.28         0.55   
  

Measured +

Indicated

     1.51         4.98         4.14         2.51         1.23         0.13         0.27         0.66   

REMNANT

  

Measured

     1.48         7.54         4.35         2.63         1.33         0.15         0.24         1.05   
  

Indicated

     1.38         44.05         4.70         2.94         1.30         0.17         0.28         6.65   
  

Measured +

Indicated

     1.40         51.59         4.65         2.89         1.30         0.17         0.27         7.71   
  

Inferred

     1.28         57.51         4.40         2.67         1.30         0.16         0.28         8.14   

Total Measured + Indicated

     1.43         56.57         4.61         2.86         1.29         0.17         0.27         8.37   

Total Inferred

     1.28         57.51         4.40         2.67         1.30         0.16         0.28         8.14   

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold.

3

Grades from individual elements are estimated from prill assays to tally 4PGE.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% currently is attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%.

Table 1.2b

Merensky Reef Mineral Resources1,4, Avoca & De Kamp Farms

0.9 metre minimum resource cut

 

Category

   Width
(metres)
     Tonnes
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE  Ounces5
(millions)
 

Total Inferred

     1.30         122.50         4.48         2.71         1.33         0.16         0.28         17.64   

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold

3

Grades from individual elements are estimated from prill assays to tally 4PGE. Grades, widths and specific gravity values are derived from the up dip resources for Paschaskraal (for DeKamp) and Klipfontein (for Avoca). Geological losses applied are 32%.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% currently is attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%.

 

  1.2.6 Grade cut-off

Minefill completed an analysis of the estimate using a grade cut-off and a 0.90 metre width. Based on their analysis, the resources in Tables 1.2a and b are equivalent to a 2.6 g/t 4PGE cut-off, using metal prices of US$778/oz for platinum, US$288/oz for palladium,

 

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US$1374/oz for rhodium and US$400/oz for gold and an ZAR:US$ exchange rate of 8.16.

1.3 UG2 Resource Estimate

The UG2 resource estimates are based on work done by Anglo Platinum. The estimate includes drilling to May 2006, updating the resource model and estimation of the 4PGE grade, UG2 Reef thickness, individual element (platinum, palladium, rhodium and gold) prill, base metal content (copper and nickel) and density distribution in the UG2 Reef deposit on the Paschaskraal and Klipfontein farms of the Ga-Phasha Property. This information was also documented in a Technical Report by Stone, Godden and Chunnett dated June 27, 2007. This report also includes information on an updated estimate of Inferred resources on the Avoca and DeKamp propertiesby Anglo Platinum. All results for the UG2 are summarized in Table 1.3.

Table 1.3

UG2 Reef Mineral Resources1,4, all farms

0.9 metre resource cut

 

Horizon

  

Category

   Width
(m)
     Tonnes
(millions)
     4PGE2
g/t
     Pt3
g/t
     Pd3
g/t
     Rh3
g/t
     Au3
g/t
     Contained
4PGE5ounces
(millions)
 

Paschaskraal & Klipfontein Farms

  

REGOLITH

  

Measured

     0.90         0.97         6.33         2.74         2.99         0.49         0.11         0.20   
  

Indicated

     0.92         1.43         6.45         2.74         3.08         0.52         0.12         0.30   
  

Inferred

     0.92         1.13         6.28         2.68         2.99         0.50         0.11         0.23   

MINING FOOTPRINT

  

Measured

     0.90         7.17         6.74         2.80         3.28         0.55         0.12         1.55   
  

Indicated

     0.90         0.07         7.04         2.91         3.41         0.60         0.13         0.02   

REMNANT

  

Measured

     0.91         16.71         6.40         2.71         3.05         0.54         0.11         3.44   
  

Indicated

     0.91         55.95         6.56         2.77         3.14         0.53         0.11         11.79   
  

Inferred

     0.95         67.36         6.47         2.72         3.09         0.54         0.11         14.02   

Total Measured + Indicated

        0.91         82.30         6.53         2.76         3.13         0.53         0.11         17.30   

Total Inferred

        0.95         68.49         6.47         2.72         3.09         0.54         0.11         14.25   

Avoca & De Kamp Farms6

  

Total Inferred

        0.96         118.11         6.49         2.73         3.11         0.54         0.12         24.63   

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold

3

Grades from individual elements are estimated from prill assays to tally 4PGE.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% currently is attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%.

6

Grades, widths and specific gravity values are derived from the up dip resources for Paschaskraal (for DeKamp) and Klipfontein (for Avoca). Geological losses applied for Avoca is 24% and for DeKamp is 27%.

 

  1.3.1 Grade cut-off

Minefill completed an analysis of the estimate using a grade cut-off and a 0.90 metre width. Based on their analysis, the resources in Table 1.3 are equivalent to a 1.76 g/t

 

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4PGE cut-off, using metal prices of US$778/oz for platinum, US$288/oz for paladium, US$1374/oz for rhodium and US$400/oz for gold and an ZAR:US$ exchange rate of 8.16.

 

1.4 Conclusions and Recommendations

A previous estimate of the Ga-Phasha mineral resources was announced by Anooraq in 2004 for both the UG2 Reef and Merensky Reef deposits on all four farms that comprise the Project area. In June 2007, a Technical Report documented the UG2 resource results, this report updates the resources for the Merensky Reef deposit on the Paschaskraal and Klipfontein farms, which comprise all the shallower resources on the Project area. The current estimate indicates increases to the Merensky Reef mineral resources on the Paschaskraal and Klipfontein farms in the Indicated and Inferred resource categories. The Avoca and De Kamp farms lie down dip and remain to be fully evaluated, representing significant potential additional resource. The Inferred resources for the UG2 and Merensky Reef deposits on the the Avoca and DeKamp farms provide an estimate of that potential.

The UG2 and Merensky geological resource models were generated using the latest borehole, assay and structural information available. The models consist of geotechnical, reef and footwall information to enable any number of resource cut scenarios (variable stope widths) to be assessed. The resource classifications are based on sound geostatistical principles. Additional exploration drilling on the close spaced and regional drilling grids is expected to enhance the resource models.

 

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2 INTRODUCTION AND TERMS OF REFERENCE

The Ga-Phasha Platinum Group Metals Project (“Ga-Phasha Project”, previously named Paschaskraal Platinum mine project), is situated in the northern sector of the eastern limb of the Bushveld Complex (the “eastern Bushveld limb”), in the Limpopo Province of Republic of South Africa. The Ga-Phasha Project area totals some 9,700 hectares that have been explored and evaluated by several companies since 1967. The work confirmed the presence of both the Merensky Reef and the UG2 Reef, which are the two main platinum-bearing horizons of the Bushveld Complex, on the Ga-Phasha property.

In a reverse takeover deal completed in 2004, Anooraq Resources Corporation (“Anooraq”) and Pelawan Investments (Proprietary) Limited (“Pelawan”) agreed to merge their respective platinum group metal (“PGM”) assets, comprising Anooraq’s northern limb PGM projects and Pelawan’s 50 percent participation interest in Ga-Phasha Project. Anooraq is now a Black Economic Empowerment (“BEE”) company, which holds and advances its projects in South Africa through its wholly owned subsidiary Plateau Resources (Pty) Limited (“Plateau”). In August 2004, Anglo Platinum signed a 50:50 joint venture agreement with Plateau to develop the Ga-Phasha Project. Since that time Anglo Platinum has contined to drill the Ga-Phasha property, in conjunction with work on its adjacent Twickenham-Hackney property.

The objective of this report is to update work done on the Ga-Phasha Project by documenting drilling and recent mineral resource estimates on the Merensky and UG2 deposits. It also documents the resources announced in an Anooraq news release dated September 04, 2007. The transaction described in that news release, when completed, will result in Anooraq acquiring an additional one percent interest in the Ga-Phasha Project.

David Stone, P.Eng., of MineFill Services, Inc., is the independent Qualified Person responsible for compiling this report. Mr Stone visited the property on numerous occasions, most recently in February 2006. Mr Stone is responsible for the technical aspects of the report, other than the sampling, resource estimate,conclusions and recommendations associated with the resource estimate.

Gordon Chunnett, Pr.Sci.Nat., of Anglo Platinum Limited, is the Qualified Person for the sampling, resource estimates as described in Section 17 of this report, which estimates were prepared under his supervision, and conclusions and recommendations. Mr Chunnett has been involved with supervising and reviewing the mineral resource estimates of the Ga-Phasha project since 1981 and more recently since 2001 to present, and has visited the property a number of times over that period, the last time in late 2006.

The resource estimates have been developed with reference to Anglo Platinum’s database and a digital Datamine three-dimensional (“3D”) modeling exercise. The technical information and data used in this report was based largely on work completed by:

 

 

Anglo Platinum’s exploration staff, as reported by Gernot Langwieder, Manager Geology, in a progress report entitled “Project Geological Report. Paschaskraal – Klipfontein Project Draft Version 4” (Langwieder, G., 2004 Feb);

 

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Desmond Submarani of Carrical Creek International Consulting in a report of September 11 2007 (which work specifically related to the Merensky Reef); and

 

 

Desmond Submarani of Carrical Creek International Consulting in a report of November 2006 and reported in a NI 43-101 compliant Technical Report by Stone, Godden and Chunnett, dated June 2007 (which work and Technical Report specifically related to the UG2 Reef).

The following data sources were also considered within the scope of the mineral resource estimates presented in this report:

 

 

site-specific information available for the Ga-Phasha Project area;

 

 

information obtained from surrounding mining and exploration projects, such as Anglo Platinum’s Twickenham, Modikwa and Lebowa Platinum mines and Impala Platinum’s Marula Platinum mine;

 

 

geological information and interpretation completed by Anglo Platinum;

 

 

borehole analytical and survey data compiled by Anglo Platinum; and

 

 

the summary report and appendices of a conceptual life-of-mine study by Hatch Engineering, dated October 2005.

 

3 RELIANCE ON OTHER EXPERTS

In preparing this report the authors relied on:

 

 

Ga-Phasha land title information provided by Anooraq and Anglo Platinum;

 

 

Summary of Joint Venture Agreement between Pelawan and Anglo Platinum, provided by Anooraq’s legal cousel for the Pelawan-Anooraq reverse takeover transaction.

 

 

Summary of a transaction whereby Anooraq can acquire 51 percent of Lebowa Holdco and thereby 51 percent of the Ga-Phasha Project.

 

4 PROPERTY DESCRIPTION AND LOCATION

 

4.1 General

Figure 4.1 is a regional geology plan of the Bushveld Complex of South Africa. Ga-Phasha Project is located in the northern sector of the eastern Bushveld limb, about 45 kilometres north-northwest of the Limpopo Province town of Steelpoort. The project area consists of four farms called Paschaskraal 466KS, Klipfontein 465KS, De Kamp 507KS and Avoca 473KS. The farms cover an area of about 9,700 hectares; they are located between Anglo Platinum’s Lebowa Platinum mines to the north and Twickenham Platinum mine to the south (see Figure 4.2).

 

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Figure 4.1 A Regional Geology Plan of the Bushveld Complex

LOGO

 

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Figure 4.2 The Location of the Ga-Phasha Project

LOGO

 

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4.2 Ownership

The Ga-Phasha property consists of four farms, covering an area of approximately 9,700 hectares, held by Micawber 277 (Proprietary) Limited (“Micawber”), a private South African corporation owned 50 percent by Anglo Platinum through its wholly owned subsidiary Rustenburg Platinum Mines (“RPM”) and 50 percent by Anooraq through its wholly owned South African subsidiary Plateau Resources (Pty) Ltd (“Plateau”). The 50:50 joint venture between Plateau and RPM is governed by, among other things, a shareholders agreement relating to Micawber dated September 22, 2004.

Figure 4.3 Mineral Rights Holdings, Ga-Phasha Project Area

LOGO

Mineral rights for the Platinum Group Metals (“PGM”) within the UG2 and Merensky Reefs on the farms Klipfontein 465KS and a portion of Paschaskraal 466KS are held by Micawber. In addition, Micawber has a lease over the PGM mineral rights for the remainder of Paschaskraal 466KS, which are held by the state as tabulated below. There are nominal annual fees to maintain the farms. Micawber holds old order mining rights to all four properties. In terms of the MPRDA, these old order mining rights are valid until 30 April 2009, after which they will expire and revert to the South African State if not converted into applicable new order mining rights. Micawber intends to apply for new order mining rights before expiry.

 

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Table 4.2 Mineral Rights’ Details

 

PROPERTY

 

PORTION

 

OWNER

 

TITLE

Klipfontein 465KS

  Farm   Micawber   K1626/2000RM

Paschaskraal 466KS

  Portion 1   Micawber   T15169/59

Paschaskraal 466KS

  RE   State, leased by Micawber   K503/70RM

De Kamp 507KS

  Farm   Micawber   T4486/1989

Avoca 472KS

  Farm   Micawber   T44482/1989

 

4.3 Surface Rights

Surface rights on Paschaskraal 466KS, Klipfontein 465KS, De Kamp 507KS and Avoca 473KS are held by the state in trust for local tribal authorities, as shown in Table 4.3.

Table 4.3 Surface Rights’ Details

 

PROPERTY

 

PORTION

 

EXTENT (ha)

 

SURFACE OWNER

 

TITLE

Klipfontein 465KS

  Farm   2841.8803   State   T44863/1989

Paschaskraal 466KS

  Portion 1   2156.8861   State   T15169/1959

Paschaskraal 466KS

  RE   745.6399   State   T13098/1964

De Kamp 507KS

  Farm   1830.6887   State   T44486/1986

Avoca 472KS

  Farm   1093.3571   State   T44482/1989

 

4.4 Anooraq-Pelawan Agreement

In January 2004, Anooraq entered into an agreement with Pelawan, a private South African Black Economic Empowerment (“BEE”) company, pursuant to which the Company and Pelawan would combine their respective PGM assets, comprising the Anooraq’s Northern Limb PGM projects and Pelawan’s 50 percent participation interest in the Ga-Phasha Project. The transaction between Anooraq and Pelawan was completed on September 29, 2004.

Pursuant to the terms of the agreement between Anooraq and Pelawan, Anooraq (through it wholly owned South African subsidiary Plateau Resources (Pty) Ltd.) acquired Pelawan’s 50 percent shareholding in Micawber 277 (Proprietary) Limited (“Micawber”) and the rights to its 50 percent participation interest in the Ga-Phasha Project in return for 91.2 million common shares of the Anooraq (the “Consideration Shares”) and cash payments totalling ZAR 15,652,744 ($3,055,416). Approximately 83 million Consideration Shares are being held in escrow until the earlier of September 29, 2010 or twelve months after the commencement of commercial production from the Ga-Phasha Project at which time they will be released.

 

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4.5 Ga-Phasha Joint Venture

 

  4.5.1 Objectives

The objectives of the joint venture participants are, initially, to further define the preparatory mining operations and to produce a bankable feasibility study for the financing and development of the mine. The participants will either jointly or separately raise the financing required to establish mining operations and subsequently proceed with construction of the mine. The participants will develop a mining work program that will seek to optimise infrastructure utilization across both the Ga-Phasha Project area and the adjacent Twickenham Platinum mine. The joint venture will have the right to acquire an interest in Twickenham Platinum’s infrastructure for a market-related consideration. The joint venture may include the processing and partial beneficiation of PGMs. The joint venture will operate and maintain a Ga-Phasha mine for the duration of the life-of-mine (i.e. until its closure), if and when appropriate.

 

  4.5.2 Management

The affairs of the joint venture shall be administered and governed by a Management Committee. The Management Committee shall be comprised of eight representatives; four appointed by RPM and four appointed by Plateau. The Chairman of the Management Committee shall be appointed by Anglo Platinum for the first year and thereafter the Chairmanship shall be rotated annually. The Chairman shall not have a casting vote. The Management Committee shall ensure the proper and efficient operation of the joint venture. Day-to-day management and conduct of the joint venture shall be carried out by the Mine Manager whom shall be subject to the control and direction of the Management Committee. All decisions of the Management Committee shall bind the participants, except for the following matters:

 

   

diversification investment;

 

   

change of the business of the joint venture;

 

   

closure and/or mothballing of the mine;

 

   

level of profit-sharing to be declared in respect of each financial year of the joint venture;

 

   

approval of the annual strategic plan and annual budget of the joint venture;

 

   

approval of the annual financial statements of the joint venture; and

 

   

disposal of assets.

 

  4.5.3  Relationship to Micawber

Micawber is the current legal holder of the old order mineral rights in respect of the Ga-Phasha Project area. New order mining rights, in accordance with the Minerals Development Act, have been applied for. Once the new order mineral rights have been issued, Micawber will apply to the Department of Minerals and Energy (DME) for consent to lease such mining rights to Anglo Platinum and Plateau (as the joint venture participants) to conduct mining operations.

 

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  4.5.4  Community Issues

Anglo Platinum and Plateau have established a Joint Co-ordinating Committee. The main purpose and objective of the committee is to define a joint communication, policy information and co-ordination forum to promote community interests, having regard to all communities situated within the surrounding area. Anglo Platinum and Plateau recognise and acknowledge that harmonious community relations will have an impact on, and be of benefit to, both Anglo Platinum and Plateau in respect of both of their business endeavours within the surrounding area.

 

  4.5.5  Production Decision

The participants shall convene a meeting within one month of completion of the bankable feasibility study, at which meeting the participants shall resolve finally whether or not to continue with mining in and on the joint venture area. In the event that:

 

   

a participant votes not to proceed with mining but the bankable feasibility study’s financial model supports the decision to mine and demonstrates that the agreed project hurdle rate has been reached, the other participant shall be entitled to start mining and dilution shall apply; and

 

   

both participants vote not to proceed with mining, the participants shall reconvene within a period of 90 days to reconsider the decision to mine (such a meeting shall be reconvened meeting within 90 day intervals, until such stage as one or both of the participants decide to commence mining).

 

  4.5.6  Off-Take

As part of the bankable feasibility study the participants will determine whether the joint venture will produce only ore or both ore and concentrate. Should the participants decide to produce concentrate, Plateau will have a period of 12 months to raise the funding required to participate in the establishment of a concentrator or to acquire an interest in the concentrator complex to be erected at Anglo Platinum’s Twickenham Platinum mine. If Plateau is unable to raise required funding the joint venture will produce only ore and the participants will take delivery of their share of the ore before it is concentrated.

Anglo Platinum shall have the right to purchase Plateau’s share of the production, being either ore or concentrate, on market–related, arm’s length terms no less favourable than the best terms that Plateau has been able to obtain in the market. The off-take arrangement will have an initial term of ten years and Plateau will have the option to renew the off-take arrangement for five year periods thereafter.

 

4.6 Anooraq Anglo Platinum Transaction Framework Agreement

Pursuant to the Transaction Framework Agreement (“TFA”) announced on September 4, 2007, Anglo Platinum will sell to Anooraq an effective 51 percent of Lebowa Platinum Mines Limited (“Lebowa”) and an effective one percent controlling interest in the Ga-Phasha Project for a total cash consideration of South African Rand 3.6 billion (approximately C$530 million). The parties have also reached agreement, in principle, for the sale of an additional effective one percent controlling interest in both the Boikgantsho

 

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PGM Project (“Boikgantsho”) and the Kwanda PGM Projects (“Kwanda”) to Anooraq. This means that Anooraq will own and control Lebowa Platinum Mines as well as the Ga-Phasha, Boikgantsho and Kwanda exploration and development PGM projects through its 51 percent control interest, with 49 percent held by Anglo Platinum. These interests will be held through a new holding company called Lebowa Holdco.

The transaction is subject to a number of conditions and is expected to close during the first half of 2008. Certain of these conditions include:

 

   

completion of confirmatory due diligence;

 

   

completion of definitive transaction agreements;

 

   

regulatory approvals;

 

   

Stock Exchange approvals;

 

   

financing; and

 

   

shareholder approvals, as required.

 

5 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY

 

5.1 Access

Access to the site is by means of a gravel road extending between Atok Section of Anglo Platinum’s Lebowa Platinum mines and Modikwa Platinum (previously known as Maandagshoek Platinum). Although there is no direct access to the main paved road between Polokwane (previously known as Pietersburg) and Burgersfort, there is railroad connection at Burgersfort (50 kilometres), Steelpoort (45 kilometres) and Polokwane (80 kilometres).

The general topography of the area is defined by a relatively flat valley, flanked by pronounced northwest- to southeast-trending mountain ranges located on the northeastern and southwestern sections of the property. Extensive settlements exist at the foot of both these mountain ranges. The area between the villages, where the land is flatter, has been divided into small farming units and/or plots for cultivating crops.

 

5.2 Climate

The climatic conditions in Ga-Phasha Project area are typical of Limpopo Province: summer day temperatures are warm to hot, averaging 26o to 30o Celsius; and the winter months (May to September) are moderate to cool.

The area is considered semi-arid, with annual rainfall of 529 millimetres, which is below the South African average. The rainy season extends over the summer months (October to January). The highest local, recorded rainfall is 151.5 millimetres, which fell over a 24 hour period on February 8, 1985.

Wind conditions are relatively calm. The prevailing wind directions are east-southeast and north-northwest. The average wind speed is 2.5 metres per second.

 

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5.3 Local Resources

Local resources are limited at the Ga-Phasha Project site, insofar as local labour is available but unskilled. The unemployment rate is high; most workers are employed by local government, in public service, in retail, as seasonal farm labour and as temporary labour for construction projects.

Anglo Platinum’s adjacent Twickenham Platinum mine includes a mine-training centre, aimed at teaching mining skills to the local people. It is anticipated that Ga-Phasha Project will benefit from Anglo Platinum’s training centre.

 

5.4 Infrastructure

With the development of Twickenham Platinum mine, infrastructure at the Ga-Phasha Project site has improved considerably: development work includes powerlines, telecommunications, water and sewer projects, establishment of paved roads and a mill complex. However, within the immediate Ga-Phasha Project area the infrastructure remains basic with only gravel roads, limited power and shared community water supply and telecommunication resources. It is anticipated that the existing infrastructure will be extended and improved, as and when required. Allowance has been made within the scope of current project studies for mine and service roads; Anglo Platinum’s Twickenham Platinum feasibility study cost estimate was adopted as the design model.

 

5.5 Environment

The location of shafts, declines, concentrators, tailings dams and sections of the railway line route will require assessment to evaluate potential social and ecological impacts and risks. It is understood that some impacts will be unavoidable and require the design and implementation of mitigation measures. Management of environmental impacts includes controlling erosion, preventing damage to local water regimes and avoiding the destruction of potentially rare/important plant species. It is anticipated that these and related issues will be covered within the scope of the planned feasibility study.

 

6 HISTORY

Platinum was first discovered in 1924, by J.F. Lombaard and Hans Merensky in the eastern Bushveld limb, from where it was traced to the now famous dunite pipes at Maandagshoek. Shortly afterwards, a platiniferous horizon, subsequently named the Merensky Reef, was discovered on the farm Maandagshoek 254KT, some 20 kilometres southeast of Paschaskraal 466KS. From 1925 to 1927, Northern Platinum Limited undertook an extensive exploration program on the platinferous dunite pipes, as well as the Merensky Reef in the Dwars and Olifants River areas. Some 700,000 tonnes of platinum-bearing ore were extracted during the subsequent (early) mining phase.

During 1969, Atok Platinum Mine (Pty) Ltd was developed and commissioned by Anglo Transvaal Consolidated Mines Limited (“Anglovaal”). Anglovaal drilled 15 shallow holes onto the Merensky Reef on the farm Klipfontein on the 1960s and excavated 30 trenches along the UG2 horizon. Anglo Platinum’s subsidiary, Rustenburg Platinum Mines Limited

 

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(“RPM”) acquired this data with the Atok mine property. From 1981-1998, RPM drilled nine holes into the UG2 Reef on Klipfontein in 1981; seven additional holes – three into the Merensky Reef and four into UG2 in 1997; and ten additional holes into the Merensky Reef in 1998.

Anglovaal drilled drilled 31 holes during the 1960’s to intersect the Merensky Reef on the Paschaskraal 466KS farm.

Although subsequent commercial mining activities were limited to Atok mine, RPM managed to secure the mineral rights over a large number of farms across the eastern Bushveld limb. Various exploration and metallurgical test programs were completed; exploration focused mainly on determining the local extent and general characteristics of platinum reef mineralization. The Ga-Phasha Project area was, as a result, further explored:

 

   

in 1981 Johannesburg Consolidated Investments Limited (“JCI”), drilled six holes to intersect the UG2 Reef;

 

   

eight holes, each with one deflection, were drilled in 1988, of these eight holes five intersected the Merensky Reef and three intersected the UG2 Reef; and

 

   

during 1999 five additional holes were drilled, each of which intersected the UG2 Reef at shallow depths.

In 1999/2000, renewed interest in the eastern Bushveld was sparked by the increased demand for PGM and by Anglo Platinum’s strategy to increase platinum output to 3.5 million refined ounces by 2006. To meet this additional demand, a number of new mining projects were planned. The various projects are now at different stages of development (see Section 17 - Adjacent Properties). In the case of the Ga-Phasha Project area (then called Paschaskraal Project), Anglo Platinum in 2000 drilled an additional seven holes to intersect the UG2 Reef (a total of 6,000 metres) and five deflections from each of these holes to provide, in each case, two deflections on the Merensky Reef horizon and three deflections on the UG2 Reef horizon.

In 2002, Anglo Platinum completed an economic study on the UG2 deposit (equivalent to a preliminary assessment because inferred resources were also used). The economic study was based on mineral resources in the UG2 Reef, including measured resources of 7.6 million tonnes grading 5.99 grams per tonne 4PGE, indicated resources of 33.1 million tonnes grading 5.8 grams per tonne 4PGE and inferred resources of 178.1 million tonnes grading 5.93 grams per tonne 4PGE (Fourie, 2002), estimated according to the SAMREC Code. The estimate integrated a 40 percent factor for geological losses for resources on the Paschaskraal (number) and Klipfontein (number) farms and 25 percent geological losses for resources on Avoca (number) and DeKamp (number) farms, a minimum mining width of 0.9 metres and a combination of grade and width for cut-off.

The study envisioned an underground mine similar to that which was, at the time, being developed at Twickenham Platinum (down-dip, semi-mechanized reef mining with access by twin shaft declines). Each decline shaft comprises three barrels: a decline ramp for equipment; a conveyor decline; and a chairlift decline for moving men. Ore was to be treated at the neighbouring Twickenham concentrator.

 

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Based on twin declines producing 100,000 tonnes per month from the UG2 Reef only, the key findings of the study were: (note: all the various text and bullet point indents should be removed)

 

   

average all-in operating costs of 210 South African Rand (note: in the text this varies between ZAR and South African Rand – I suggest we should stick with South African Rand in each case, not least ZAR refers back to the “old” Afrikaans terminology) per tonne milled;

 

   

total capital costs of 2.5 billion South African Rand;

 

   

an Internal Rate of Return (“IRR”) of 17 percent and a Net Present Value (“NPV”, 12 percent discount) of 860 million South African Rand;

 

   

a ramp-up period of 50 months was projected for mine and infrastructure development; and

 

   

the project contained sufficient reserves at an economically mineable grade to warrant a decision to proceed to production.

A breakdown of the operating cost estimate is summarised on Table 6.1; a breakdown of the capital cost estimate is summarised on Table 6.2; and the unit revenue contributions estimated by Anglo Platinum are shown in Table 6.3. The estimates include some cost sharing with Twickenham Platinum on shared and common services. The capital estimate is to an accuracy of ± 25 percent.

 

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Table 6.1 Operating Cost Summary

 

Area

   Rand/tonne
milled
 

Mining

     144.23   

Processing

     31.14   

Indirect costs

     30.88   
        

Total

     206.26   
        

Table 6.2 Capital Cost Summary

 

Area

   Capital  Rand
millions
 

Mining

     1,018.40   

Surface Infrastructure

     390.57   

Process Plant

     580.00   

Other Owner Costs

     484.00   
        

Total

     2,472.97   
        

Table 6.3 Unit Revenue Contributions

 

Metal

   Rand/tonne
milled
     Rand/ounce
Pt
     US $/oz
Pt
     %
Contribution
 

Pt

     241         3669         325         47.5   

Pd

     199         3020         267         39.1   

Rh

     46         705         62         9.1   

Au

     6         87         8         1.1   

Ir

     0         0         0         0.0   

Ni

     13         190         17         2.5   

Cu

     3         51         5         0.7   
                                   

Total

     508         7723         684         100.0   
                                   

Based on the findings outlined, Anglo Platinum concluded that Paschaskraal Project was an attractive investment and subsequently encouraged BEE group participation.

In early 2004, Anooraq commissioned a resource estimate related to the proposed transaction with Pelawan. The estimate was completed by Eugene Siepker, Pr.Sci.Nat,. of Global Geo Services Limited. The estimate was for the entire Ga-Phasha Property, utilizing drillhole information made available by Anglo Platinum from 299 holes drilled between 1966 and 2002.

 

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Table 6.4 Ga-Phasha Project - Mineral Resources - Feb 2004

 

Reef, Category and Cut-off

   Tonnes
(millions)
     4PGE
(g/t)
     Pt
(g/t)
     Pd
(g/t)
     Au
(g/t)
     Rh
(g/t)
     Contained
4PGE Ounces
(millions)
 

Paschaskraal and Klipfontein farms

                    

UG2 Reef @ 4 g/t cut-off

                    

Measured

     10.2         6.56         2.89         3.08         0.17         0.41         2.150   

Indicated

     55.5         7.05         3.10         3.31         0.18         0.44         12.579   

Measured + indicated

     65.7         6.97         3.07         3.28         0.18         0.44         14.729   

Inferred

     33.9         7.20         3.17         3.38         0.19         0.45         7.839   

Merensky Reef @ 2 g/t cut-off

                    

Measured

     10.3         4.44         1.95         2.09         0.12         0.28         1.484   

Indicated

     32.9         4.37         1.92         2.05         0.11         0.28         4.621   

Measured + indicated

     43.3         4.39         1.93         2.06         0.11         0.28         6.105   

Inferred

     39.8         4.28         1.88         2.01         0.11         0.27         5.478   

Avoca and De Kamp farms

                    

Merensky Reef @ 2 g/t cut-off

                    

Inferred

     97.6         4.34                     13.620   

UG2 Reef @ 4 g/t cut-off

                    

Inferred

     77.6         7.05                     17.590   

For the farms Paschaskraal and Klipfontein for the Merensky Reef, the resource estimation excludes the first 40 metres below surface, which is considered as an oxidized zone. The Specific Gravity for the Merensky Reef is 3.1 and the UG2 Reef is 4.25. A 40 percent geological loss factor was applied, which includes ten percent for faulting, 15 percent for potholes, ten percent for intrusions and five percent for iron replacement bodies. Even though dykes swarms effect the area more than on the adjoining properties, the resources are regarded as conservative as the industry average is around 20 to 30 percent. The Avoca and De Kamp farms adjoin Paschaskraal and Klipfontein on the down-dip side of the UG2 and Merensky Reefs. No boreholes were drilled on these farms, but it could be assumed that the reefs developed on Paschaskraal/Klipfontein farms would be developed on Avoca and DeKamp.

In September 2007, a transaction was announced whereby Anooraq could acquire an addition one percent interest in the Ga-Phasha Project. Resources were for all farms constituting the Ga-Phasha property as reported by Anglo Platinum in December 2006, qualifed person Gordon Chunnett, Pr.Sci.Nat.

Table 6.5 Ga-Phasha Mineral Resources - Dec 2006

 

      Merensky Reef      UG2 Reef  

Category

   Tonnes
(millions)
     4PGE
(g/t)
     Tonnes
(millions)
     4PGE
(g/t)
 

Measured

     13.4         4.61         24.8         6.50   

Indicated

     27.6         5.33         57.4         6.55   

Measured + Indicated

     41.0         5.09         82.2         6.53   

Inferred

     122.4         5.41         185.8         6.47   

 

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7 GEOLOGICAL SETTING

The Bushveld Complex is a layered igneous intrusive that contains globally significant accumulations of chrome and PGEs. It was intruded into the Transvaal sequence about two billion years ago; its main outcrops describe an approximate, 350 kilometres by 150 kilometres, east-west orientated ellipse. Protrusions extend from the ellipse, but these are generally covered by younger rocks.

The total estimated extent of the Bushveld Complex is 66,000 square kilometres (Viljoen, M.J. and Schürmann, L.W., 1998). For the most part it comprises a layered sequence of ultrabasic to basic igneous rocks, the main body of which is known as the Rustenburg Layered Suite, or RLS. The RLS is about 7,000 metres thick along the western Bushveld limb and about 9,000 metres thick along the eastern Bushveld limb.

The total Bushveld sequence is divided into five stratigraphic zones, by far the most economically important of which is the Critical Zone:

 

   

the base of the Critical Zone is marked by the first in a series of chromitite layers;

 

   

the basal chromitite is followed by a strongly layered sequence of repeated cyclic units, each comprising a basal chromitite overlain by a pyroxenite then a graded series of melanorites, norites, leuconorites and anorthosites; and

 

   

contained within the layered sequence outlined are various chromitite layers and the platinum horizons of interest.

The chromitite layers are sometimes termed chromite layers; where they are exploited for their chrome content they tend to be called chrome seams, at least within the South African mining industry. Up to 25 individual chrome seams have been recorded and each contains some PGEs. However, only three mineralised horizons contain economically viable PGE grades, which horizons are called the Merensky, UG2 and Plat Reefs. The Platreef is developed only in the northern Bushveld limb, near Polokwane, where it extends over a strike length of some 100 kilometres. The Merensky and UG2 Reefs are remarkably persistent horizons that can be traced for about 140 kilometres over both the western and eastern Bushveld limbs. The Merensky Reef is named for Hans Merensky who, with A.F. Lombard, made the first platinum reef discovery. The UG2 Reef is named for its stratigraphic position within the sequence of chromitite layers: it forms the second chromitite of the Upper (Chromitite) Group (see Figure 7.1).

 

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Figure 7.1 Generalised Stratigraphy, Critical Zone Chromitites

(after Schürmann, Grabe and Steenkamp, 1998)

LOGO

Exploration has proved that both the Merensky and UG2 Reefs are developed across the Ga-Phasha Project area; they are separated by about 390 metres of norites, anorthosites and minor pyroxenites. The Merensky Reef subcrops beneath a relatively thick layer of black turf overburden on the flatter central portion of the property; it is usually exposed in deeply eroded gullies. The undulating outcrop of the UG2 Reef can be traced in the range of hills along the northeastern boundary of the Ga-Phasha Project area. The strike length of both reefs in the Ga-Phasha Project area is about 10 kilometres.

The various mineralised horizons outlined are broadly concordant with the lithological layering that dips towards the centre of the Complex at about nine to 15 degrees over

 

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much of the western and eastern Bushveld limbs. The exceptions include areas of local geological disturbance, where dips can be as high as 30 degrees, and in the extreme northern sector of the eastern Bushveld limb where dips of between 45 and 65 degrees exist. To the north of the Ga-Phasha Project area, the layering strikes north-northwest/south-southeast and dips to the west at about 30 degrees. To the south of the Ga-Phasha Project area it dips at about ten degrees.

Figure 7.2 shows the plan position of the Klipfontein (number) and Paschaskraal (number) sections shown in Figures 7.3 and 7.4. These sections show the relationship between the topography, top of Merensky and UG2 Reef surfaces and include the boreholes within 50 metres of the section line.

LOGO

Figure 7.2: Plan showing section line locations.

 

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LOGO

Figure 7.3: West-East section across Klipfontein farm, showing the Merensky Reef (MR)

and the “Mega Slump” feature

 

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LOGO

Figure 7.4: West-east section across Paschaskraal farm, showing the Merensky (MR) and UG2 Reefs

 

7.1 Stratigraphy

A generalised stratigraphic column has been constructed for the Ga-Phasha project area for the Bastard pyroxenite to the UG1 horizon, as illustrated in Figure 7.5 below. A short description of the generalised stratigraphy follows from the immediate footwall of the UG1 to the Bastard cyclic unit, which demarcates the top of the Critical Zone.

 

  7.1.1  UG1 Chromitite

The UG1 usually consists of a series of chromitite layers up to 1.2 metres in thickness. In some cases, several layers or stringers of chromitite are “detached” from the bottom or top of the main layer. These appear to diverge into the footwall/hangingwall anorthosite, only to converge again and join the main layer. The lenses of anorthosite so formed are usually impregnated with numerous chromite grains.

Below the main layer there is always a zone of anorthosite, up to five metres in thickness, which contains elongated blebs and stringers of chromitite. These occur below the

 

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“detached” chromitite zone described above. Bifurcation of chromitite layers within the UG1 sequence is very common. The intimate association of chromitite and anorthosite is a characteristic of the UG1 chromitite unit throughout the Bushveld Complex. Layers of norite, leuconorite, anorthosite and pyroxenite approximately 80 to 90 metres thick, overlie the UG1 chromitite unit and is, in turn, overlain by the UG2 chromitite layer (or horizon).

Figure 7.5 Generalized Stratigraphic Column

LOGO

 

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  7.1.2  UG2 Footwall Marker (FWM)

This marker usually occurs seven to 15 metres below the UG2 Reef. Within the poikilitic anorthosite of the Footwall 3 (FW3) below the UG2 Reef a low-angle thrust fault exists. Chromitite stringers often associated with the poikilitic anorthosite. Within a 10 to 30 centimetre wide zone, parallel to sub-parallel to the thrust fault, shearing, brecciation and mylonisation with intense alteration are commonly observed features.

 

  7.1.3  UG2 Chromitite (UG2)

The thickness of the UG2 Reef assemblage varies between 0.55 to 0.65 metres. Occasionally thin pyroxenitic to leuconoritic lenses of limited lateral extent occur within the UG2 Reef.

The immediate footwall of the UG2 chromitite is usually a pegmatoidal feldspathic pyroxenite, which generally varies in thickness from a few centimetres to about 70 centimetres. The footwall pegmatoidal pyroxenite contains some base metal sulphides, but its precious metal content is generally low with erratic high values. The contact between this coarse pegmatoidal pyroxenite and the underlying poikilitic pyroxenite is usually irregular and gradational over a few centimetres. A thin boundary chromitite stringer can be seen in various localities.

The UG2 chromitite is overlain by medium grained feldspathic pyroxenite three to five metres in thickness which may contain up to six, thin (one to ten millimetres thick) chromitite stringers. The separation distances between these chromitite stringers and the UG2 Reef will have important implications with respect to geotechnical issues, once mining commences. A thin anorthosite layer (one to three centimetres thick) occurs above the chromitite stringers and is generally referred to as the Hangingwall Anorthositic Marker (HAM).

 

  7.1.4  UG3 Chromitite (UG3)

The UG3 Chromitite Layer (more commonly known as the “Leaders”) is approximately 10 to 30 centimetres in thickness and occurs generally between 20 and 30 metres above the UG2 Reef. The UG3 footwall normally consists of a poikilitic anorthosite typically 50 to 60 centimetres in thickness, below which norites occur that grade into the hangingwall pyroxenites of the UG2 Reef.

The UG3A and UG3B are usually thin (ten to 15 centimetres) often poorly defined chromitite occurrences approximately 11 metres above the UG3 and are of more disseminated nature.

 

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  7.1.5  Merensky Reef

The Merensky cyclic sequence consists of a dark pyroxenite at the base after which the overlying rocks become progressively lighter in density and colour. The basal pyroxenite is termed the Merensky pyroxenite and the mineralised portion of the pyroxenite that is called the Merensky Reef is invariably associated with two very thin chromitite stringers (usually five to 20 millimetres in thickness). The Merensky Reef is usually referred to as that portion contained between these chromitite stringers. This sandwiched pyroxenite to pegmatoidal pyroxenite varies in thickness between 50 and 200 centimetres. A 20 to 50 centimetre thick pegmatoidal pyroxenite usually occurs immediately below the lowermost chromitite stringer. Visible sulphides occur in variable amounts from above the uppermost chromitite stringer to below the pegmatoidal pyroxenite. The uppermost chromitite stringer is usually associated with the highest PGE grades. These chromitite stringers are not always present throughout the project area however usually at least one will be present. The stratigraphic position of the Merensky with respect to the footwall rocktypes has resulted in various facies types being proposed.

A 40 to 70 centimetre thick poikilitic plagioclase pyroxenite occurs above the upper chromitite stringer before grading into a norite. This norite contact is normally (by whom? Anglo?) referred to as the top of the Merensky pyroxenite.

This norite grades into a poikilitic pyroxene anorthosite followed by a second pyroxenite which forms the Bastard Pyroxenite. The Bastard Pyroxenite has sometimes been confused with the Merensky Reef. These generally contain sporadic low mineralisation.

A norite occurs above the Bastard Pyroxenite which grades into a poikilitic pyroxene anorthosite that is up to 60 metres in thickness. This is referred to as the Giant Poikilitic Anorthosite and is generally accepted as the demarcation of the top of the Critical Zone.

 

8 DEPOSIT TYPE

The Ga-Phasha deposits may be described as typical, tabular reef-type Bushveld deposits. The geological environment is broadly similar to other Bushveld areas - only the details of the thickness of individual hangingwall and footwall units and the on-reef structural geology differ from the other Bushveld areas. These differences were considered within the scope of the technical investigations that were based on site-specific data for the Ga-Phasha Project area.

 

9 MINERALIZATION

The PGM mineralisation is hosted within the UG2 and Merensky Reef packages.

The UG2 Reef occurs as a chromite cumulate, either as a pure chromite or a dense cumulate framework of chromite accompanied by fine crystalline interstitial plagioclase and/or orthopyroxene. Interstitial base metal sulphides also occur and are sometimes visible; they generally indicate a higher concentration of PGEs. Mineralisation occurs throughout the UG2 Reef chromitite with usually significantly higher values associated with the hangingwall and footwall contacts. Mineralisation may also occur within the

 

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pegmatoidal pyroxenite footwall and is mainly associated with disseminated chromite and chromitite stringers/lenses - occasionally grades of up to ten grams per tonne are encountered. Hangingwall samples do not contain significant PGE values although occasionally values in excess of five grams per tonne are found when associated with the chromitite stringers or disseminated chromitite.

The feldspathic pyroxenite rocks within the Merensky package host chromite, base and precious metal sulphide accumulations. PGE mineralisation occurs as discrete metals that are typically associated with and enclosed within the base metal sulphides and silicates. These comprise PGE sulphides, sulpharsenides, arsenides, bismuthides, tellurides, bismuthotellurides and alloys. The base metal sulphides occur as discrete particles, sharing interstitial space with plagioclase feldspar, within a silicate framework of orthopyroxene. There is a strong association of the PGMs with the chromitite stringers usually demarcating the upper and lower contacts of the Merensky Reef. Significantly higher PGE values are found at these chromitite contacts. Mineralisation above and below the chromitite contacts taper off (to trace values) although occasional higher values can be encountered.

 

10 EXPLORATION

 

10.1 Remote Sensing

 

  10.1.1  Land Satellite Images

Landsat images have been completed (Figure 10.1) across Paschaskraal 466KS and Klipfontein 465KS. The data has been used, in combination with other tools, to develop the structural evaluation for the Ga-Phasha Project area.

 

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Figure 10.1 Landsat image of the Ga-Phasha Project area

(Paschaskraal 466KS and Klipfontein 465KS)

LOGO

 

Notes Merensky outcrop in red, UG2 outcrop in bright green. Dark green and blue NNE-SSW trending dykes, purple and orange lines represent fractures/possible faults whereas dark pink lines are confirmed/known faults. The Paschaskraal shaft layout is highlighted in yellow (southern portion of Paschaskraal).

10.1.2 Aerial Photography

Colour and black & white aerial photographs exist and were used in combination with other tools for purposes of structural evaluation. Figure 10.2 shows a black & white aerial photograph of the Ga-Phasha Project area and includes the drilled and planned borehole coverage across the project area.

 

10.2  Geophysics

10.2.1 Magnetic Surveys – AeroMagnetics and Ground Magnetics

Anglo Platinum has completed an aeromagnetic survey over a large portion of the northern sector of the eastern Bushveld limb. The data was interpreted by GAP Geophysics in 2002; it was subsequently re-interpreted by A. Rompel and A. Friese (SRK Consulting) and by G. Langwieder (Anglo Platinum) within in the framework of structural evaluation. Figure 10.3 illustrates the primary trend of linear features such as dykes, which show up as purple, red and blue linear magnetic anomalies. Confirmation of the interpretation has been achieved through field work (ground truthing).

 

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Figure 10.2 Black & white aerial photograph of the Ga-Phasha Project area

(Paschaskraal 466KS and Klipfontein 465KS)

LOGO

 

Notes:  The red dots represent Merensky Reef intersections, the green dots represent UG2 Reef intersections, red dots within green circles indicate that both reefs were intersected and the yellow stars represent planned borehole sites. The dark blue and dark green lines represent dykes (confirmed by AeroMag) and the light blue and orange lines represent fractures. The thick green line represents the UG2 outcrop/subcrop and the thick red line represents the Merensky Reef outcrop/subcrop. Finally, the dark pink dashed lines represent confirmed/known faults (note the offsets on the outcrop).

 

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Figure 10.3 Aeromagnetic survey results, Ga-Phasha Project area

(Paschaskraal 466KS and Klipfontein 465KS, Paschaskraal shaft layout in orange)

LOGO

A ground magnetic survey and its interpretation were completed by Anglo Platinum (J. Krynauw) in May 2002, across the Paschaskraal shaft area. The survey included a report on dyke-UG2 hangingwall relationships on Klipfontein 465KS.

10.2.2 Seismic Surveys

No seismic work has been carried out on any of the four farms that comprise the Ga-Phasha Project area.

10.2.3 Geothermal Gradients

All boreholes in excess of 250 metres in depth were surveyed using a multishot, down-the-hole method that includes temperature measurements intervals of between four and nine metres. The 40° Celsius isotherm was modelled in Datamine.

10.2.4 Palaeomagnetics and Geochronology

Geological samples of several positively and negatively magnetized dolerite dykes, that cross the Ga-Phasha Project area, were taken by SRK Consulting (Andy Friese) from underground and from surface. The main aim was to obtain age relationships for the various intrusive and structural events and, by doing so, to improve the structural and general geological understanding of the regional setting of the northern sector of the eastern Bushveld limb.

10.2.5 Wireline Logging

Downhole wireline logging was carried out at the end of 2004 in one borehole at Paschaskraal 466KS (borehole PK216) and one borehole at Klipfontein 465KS (borehole

 

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KF101), by Quicklog Geophysics (Pty) Limited. The boreholes had end-of-hole depths of about 700 metres; they intersected the Merensky Reef at depths of between 150 to 300 metres and the UG2 Reef some 400 metres lower down in the stratigraphic sequence.

10.3 Mapping/Trenching/Adits

Anglo Platinum carried out an outcrop mapping exercise on the UG1 and UG2 Reefs along the southern portion of Paschaskraal 466KS (i.e. near the previously sited shaft area), as well as along the whole of the Klipfontein subcrops. Re-mapping of the lithological units between the UG3 and UG1 chromitite layers was undertaken in 2003. Additional focus was the mapping of structurally-related features such as dykes and pegmatite veins, as well as the measurements of joint systems on Paschaskraal 466KS and Klipfontein 465KS . A typical UG2 outcrop occurring on Klipfontein 465KS is presented as Figure 10.4.

Figure 10.4 A Typical UG2 chromitite layer outcrop on the farm Klipfontein

LOGO

Individual dykes were also trenched, where possible, for dip, width, strike, ground conditions and geological loss estimation. A total of 24 dyke trenches were dug on Paschaskraal 466KS, of which 14 failed to reach bedrock. A ground-truthing exercise for most of the predicted/expected dykes on Paschaskraal 466KS was carried out in December 2003, the results of which confirmed the existence and properties of most of the dykes.

Three Merensky Reef adits and one UG2 Reef adit were previously developed along the outcrops/subcrops on Paschaskraal 466KS. The adits were made safe, mapped and sampled at five metre intervals on the Merensky Reef and at 10 metre intervals on the UG2 Reef.

 

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11 DRILLING

 

11.1 Merensky Reef

The following table (Table 11.1) summarises the borehole database information used for the compilation of the June 2006 Merensky Reef resource model. The database included boreholes from the neighbouring properties, a total of 16 reef intersections from Lebowa Platinum mines.

Table 11.1: Borehole database summary

 

     

TOTAL

 

BOREHOLE DATABASE

  

Number of “parent” boreholes:

     127   

Number of Motherhole+deflections:

     291   

BOREHOLE MR REEF INTERSECTIONS

  

Number of MR “parent” boreholes

     116   

Number of MR Motherhole+deflections

     257   

Number of MR Motherhole+deflections PGE ASSAY acceptable

     219   

Number of MR intersections (includes deflections) – PRILL (unregressed)

     94   

Number of MR intersections (includes deflections) – PRILL (regressed data)

     163   

Number of MR intersections (includes deflections) – DENSITY

     137   

Number of MR intersections (includes deflections) – Copper

     187   

Number of MR intersections (includes deflections) – Nickel

     187   

The borehole database was sourced and supplied by Anglo Platinum, as at June 2006, the Merensky and UG2 outcrops, faults, dykes, potholes and other geological features were also provided. The pothole features and geozones were re-visited and where necessary, re-interpreted in accordance with the additional data logs. Figure 11.1 shows distribution of boreholes across the Ga-Phasha Project area. The black circles denote the validated dataset used in the evaluation. The purple and outer orange lines represent the UG2 and Merensky Reefs’ outcrop positions, respectively. The green polygon represents reef remnants within the interpreted limits of a “pothole”, with the blue polygons representing the “mega slump” feature. All of the potential resources within the blue outlined area have been excluded from the Merensky Reef estimation. Resources between the blue and green polygons has been interpreted as a “pothole edge” type facies and as such been evaluated independently. The inner orange line demarcates the boundary between fresh and oxidized Merensky Reef.

 

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LOGO

Figure 11.1: Ga-Phasha validated borehole distribution – Merensky Reef

In total, 116 boreholes, with 263 reef intersections, were added to the Ga-Phasha database for the 2006 Merensky Reef resource update presented in this Technical Report Boreholes shown outside of the farm boundaries were included for modeling purposes but were not included in the final tally of mineral resources.

 

11.2 UG2 Reef

The following table summarises the validated borehole database information used for the compilation of the June 2006 UG2 resource model summarized in this report and presented in the June 2007 Technical Report The database included boreholes from neighbouring properties, a total of 19 reef intersections from Lebowa Platinum mines and 17 reef intersections from Twickenham Platinum mine.

 

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Table 11.2 Borehole database summary

 

      TOTAL  

BOREHOLE DATABASE

  

Number of “parent” boreholes :

     322   

Number of Motherhole+deflections:

     899   

BOREHOLE UG2 REEF INTERSECTIONS

  

Number of UG2 “parent” boreholes

     230   

Number of UG2 Motherhole+deflections

     619   

Number of UG2 Motherhole+deflections PGE ASSAY acceptable

     449   

Number of UG2 intersections (includes deflections) – PRILL (unregressed)

     428   

Number of UG2 intersections (includes deflections) – PRILL
(regressed data)

     21   

Number of UG2 intersections (includes deflections) – DENSITY

     401   

Number of UG2 intersections (includes deflections) – Copper

     443   

Number of UG2 intersections (includes deflections) – Nickel

     443   

The mineral resource estimate is based on drilling results on the Ga-Phasha Project area, to 2006 from 583 UG2 Reef intersections either as single drill holes or drill holes containing deflections.

Figure 11.2 shows the borehole collars in black and orange. The boreholes highlighted in orange are the most recent. Black circles denote historical data, including that from the neighbouring farms that were included in the resource modeling. However, boreholes outside of the farm boundaries were not included in the final tally of mineral resources.

 

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Figure 11.2 Ga-Phasha Drill Hole Distribution

LOGO

The in-situ resource cut is based on a geotechnical hangingwall thickness, UG2 Reef thickness and minimum 10 centimetres footwall thickness to make up a minimum resource (no cap) cut of 0.90 metres. There are a number of areas where this cut thickness is exceeded, due to geotechnical thicknesses exceeding 20 centimetres.

 

12 SAMPLING METHOD AND APPROACH

On-site drillcore logging is undertaken by qualified geologists at Anglo Platinum’s Driekop exploration base. Drillcores are logged in terms of the intersected lithologies, mineralization, alteration and structure. Logging details are entered directly into laptop computers, making use of the proprietary Sable software package. Specialized geotechnical and structural logging is carried out by geotechnical engineers and structural geologists.

During the logging process, sampling intervals through each reef succession are determined. Individual samples are measured off, marked and numbered according to Anglo Platinum’s standard. Sampling is continuous throughout a sample section. Marked core is submitted to technical staff, who firstly cut the core longitudinally in half through the

 

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complete sampling interval. One half of the split core is cleanly broken with a sharp chisel at individual sample boundary markings; the core samples are immediately labelled, bagged and sealed (note: diamond saw cutting is not used to cut individual samples from the split core because of the associated loss of material). Precautions are taken to avoid cross-contamination between samples. The remaining core halves are left in core trays, with the flat surface/cut side facing upwards. The sample intervals and numbers are replicated on the (flat) half-core surface for future reference and re-sampling, if required. The sampling process is fully documented on site, records of all sampling are maintained. Anglo Platinum’s standard for sampling is as follows:

 

 

within reef intersections maximum sample lengths are 20 centimetres, preferred sampling widths are ten to 15 centimetres (in hangingwall and footwall lithologies, sample lengths of 15 centimetres are uniformly applied, further away from the reef 20 centimetre samples have been taken);

 

 

top and the bottom contact samples are taken in such a manner that two centimetres of footwall and two centimentres of hangingwall are included in the sample lengths –

 

   

to ensure that high-grade material at the top and bottom of the UG2 chromitite are included, as well as disseminated chromite occurrences or chromite lenses close to the footwall contact, the latter because they are likely to contain PGEs, and

 

   

to ensure more accurate modelling in terms of mining cut problematics;

 

 

once a sample (marking-off) procedure is completed, the core samples are split at Anglo Platinum’s Driekop facility, using a task-dedicated diamond blade saw, as earlier described; and

 

 

individual samples are then separated and individually bagged.

 

 

Required deflections samples are dispatched for mineralogical or metallurgical testwork.

 

13 SAMPLE PREPARATION, ANALYSIS, AND SECURITY

After bagging, the samples are transported to Anglo Platinum Research Centre (“ARC”) in Germiston, near Johannesburg. Pre-2000 samples were processed by ARC; post-2000 samples are processed by Anglo American Research Laboratory (“AARL”). Samples are delivered by ARC staff members, when they are transported to AARL. Ten percent of the samples are sent to an external lab for analysis as an additional quality control check.

Recovered drillcore (i.e. reef intersections of Merensky and UG2 Reef) is assayed for platinum, palladium, rhodium and gold (denoted as “4PGE”) as well as for copper and nickel. The platinum, palladium, rhodium and gold contents (also described as prill contents) of each sample are also determined.

 

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13.1 ARC Procedures

All samples are duplicated and run on “A” and “B” streams at different times. Internal quality control occurs with every batch. ARC does not use blanks and integrates an internal quality control sampling once a week. Comparative results from the “A” and “B” streams are made available.

13.1.1 Sample Preparation

All samples are pulverized to 80 percent ( +/-5 percent) passing 75 microns.

13.1.2 Fire Assay – Four Element (lead collector)

Prepared samples are individually added to, and blended with, a suitable fluxing powder. The mixtures are transferred to aluminium fire clay crucibles and then fused for sixty to ninety minutes in an electric furnace at 1,100 to 1,200 degrees Celsius. With fusion, two phases form: a glassy slag; and metallic lead phase. The lead collects the precious metals contained in the fused mass.

Individual melts are poured into iron moulds and allowed to cool, whereafter the lead collector is separated from the slag and hammered into a cube to remove the majority of the remaining slag. The lead button then undergoes high temperature cupellation (i.e. between 1,000 and 1,100 degrees Celsius). The lead is oxidised and absorbed by the cupel; the remaining metal prill is transferred to a block cupel and heated for a further sixty to ninety minutes at 1,300 degrees Celsius to remove volatile impurities. Finally, the prill is flattened to remove any remaining cupel residue. It is then weighed. The precious metal concentration is reported as the sum of platinum, palladium, rhodium and gold.

There is loss of PGEs associated with the method outlined, due to the high temperature cupellation step. The results therefore often require the application of a correction factor. Samples from the Ga-Phasha Project borehole database that were assayed using the lead collector fire assay method have not been corrected.

13.1.3 Fire Assay ICP - 3E (Ag collector) & Fire Assay ICP Rh (Pd collector)

At ARC, silver (“Ag”) is used to collect platinum, palladium, rhodium and gold; palladium is used to collect rhodium. The process is essentially the same as for fire assay using a lead collector, except that the high temperature cupellation step removed. Prills are also analyzed by dissolution and either by a inductively coupled plasma (“ICP”) or an atomic absorption (“AA”) spectrometer (which two-prill methods need to be run in tandem to obtain a quantitative analysis of the platinum, palladium, rhodium and gold contents).

The use of silver/palladium collectors reduces random losses of PGEs during high temperature cuppelation. A more precise analysis is therefore achieved, as well as a lower detection limit of tail samples.

13.1.4 X-Ray Fluroescense XRF-ARC for Cu and Ni Analysis

Pulped samples are mixed with a styrene - wax binder (SASMU) and milled to mix in the

 

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binder and further reduce particle sizes. The samples are pressed into briquettes. The briquettes are read on AARL’s PW 1404 X-Ray Fluorescope for copper and nickel Ni. Corrections are made for mass absorption coefficient, background and tube spectral interferences (copper only). Mineralogical effects are evident in the briquettes - hence separate ‘type’ calibrations are critical for UG2 and Merensky type samples. Approximately five percent on the samples are replicated. Two reference materials are analysed with every batch (maximum 100, mass taken = 27 grams and binder = three grams).

 

13.2 AARL Procedures

13.2.1 Sample Preparation

Samples are crushed in a jaw crusher to two millimetres. Entire samples are then milled to 85 percent at minus 75 microns, or finer. An eight minute milling time is required.

13.2.2 Atomic Absorption Spectrometry AAORE

Pulped samples are digested with a triple acid attack (perchloric, nitric and hydrofluoric acids). The solutions are simmered to incipient dryness to convert the base metals to soluble perchlorates.

The acid attack is performed three times, following which the solutions are transferred to 100 millilitre flasks and read, using AA spectrometry, for copper and nickel. Four per cent of the samples are replicated. Two blanks and three reference standards are included in every batch (maximum 100, mass taken = 0.50 grams and final dilution = 200 times).

13.2.3 X-Ray Fluorescence XRF

Pulped samples are mixed with a styrene/wax binder (SASMU) and then milled to both mix-in the binder and to reduce particle sizes. The samples are pressed into briquettes, which are read on AARL’s PW1404 X-Ray Fluorescope for copper and nickel. Corrections are made for mass absorption coefficient, background and tube spectral interferences (copper only).

Mineralogical effects are evident in the briquettes – hence separate “type” calibrations are critical for Merensky and UG2 Reef sample types. Approximately five per cent of the samples are replicated. Two reference materials are analysed with every batch (maximum 100, mass taken = 27 grams and binder = three grams).

13.2.4 Fire Assay Inductively Coupled Plasma (ICP) for 3E (Pt, Pd, Au)

All assays are done in duplicate and the average of acceptable replicate pairs is reported. Samples are weighed out and mixed with an appropriate flux for the material type. Silver is used as a co-collector. The samples are fire assayed, the prills dissolved in aqua regia and then read on a ICP spectrometre for three elements. One blank and two reference materials are analysed with every worksheet (maximum 35, mass taken = 50 grams for Merensky Reef samples and 30 grams for UG2 Reef samples).

 

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13.2.5 Fire Assay ICP Rhodium

All assays are done in duplicate; averages of acceptable replicate pairs are reported. Samples are weighed out and mixed with an appropriate flux for the material type. Palladium is used as a co-collector. The samples are fire assayed and the prills dissolved in aqua regia and read on a ICP spectrometre for rhodium. One blank and two reference materials are analysed with every worksheet (maximum 35, mass taken = 50 g for Merensky Reef samples and 30 grams for UG2 Reef samples).

 

13.3 Specific Gravity

Pulped samples are analysed on a Grabner instrument (mass taken = 50 gram); four percent replication is performed. Acid washed quartz is analysed with every batch of samples.

 

13.4 Sample Security

Samples are kept in a secure coreyard and a comprehensive chain of custody is maintained. The samples are stored in new, robust, well labeled plastic bags such that cross sample contamination is avoided. All samples are recorded on a dispatch sheet, a copy of which accompanies the samples to the Anglo American laboratory. An electronic version of the dispatch sheet is also emailed to the Geological database administrator and the laboratory. On receipt at the laboratory, the samples are checked in against the dispatch sheet; any samples damaged in transit or whose documentation is faulty are returned to site for rectification.

 

14 DATA VERIFICATION

 

14.1 Reporting of Results

Until the last quarter of 2004, assay results were transmitted electronically to ARC, in Excel format. ARC would paste the results and update the progress information in a shared folder on the Anglo Platinum results drive. The results were then extracted by geological staff, re-formatted in Excel and pasted into the Sable borehole database. An updated electronic interface enables the laboratories to e-mail their results to ‘geolabs’, an e-mail address which is maintained by Comparex. A software interface now runs daily to read ‘geolabs’, re-format the data and dump the data into the ARC-warehouse database. Sable draws data from that database to automatically update the Sable assay and prill tables.

 

14.2 Quality Control

AARL has a comprehensive assay quality control system that includes blanks, certified reference materials, in-house reference materials and twin streaming/replicate analyses. AARL is an ISO 17025 registered company and operates according to international quality standards.

 

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Care is taken during the handling of samples to avoid potential cross-contamination or misplacement of samples. High- and low-grade materials are processed in completely separate areas throughout the laboratory, using dedicated and clearly labelled equipment.

Samples are weighed and checked upon receipt at the AARL. Quarry quartz is crushed and milled between individual batches to avoid any possible carry-over. The quartz is analysed with the batch and these the data is reported to the ARC during progress meetings.

For each tray (worksheet) of 3PGE and rhodium analysis, reagent blanks, standard reference material and duplicate samples are included for control purposes. Internationally certified standards, as well as internal standards, of matched matrices are used.

Fire assay pots are used only once to avoid the possibility of cross-contamination of samples.

A full calibration of the ICP and AA spectrometers is performed prior to sample analysis; a synthetic check solution is included after every 15 samples. Where the check solution data falls outside the acceptable control limits, the instrument/s is/are re-calibrated.

Worksheets are accepted or rejected, based on the quality control data of the standards replicates and blanks. A complete audit trail is maintained in the laboratory to ensure traceability, transparency and ISO compliance.

Quartz blanks are designed to monitor the entire process from sample preparation to instrumentation. The blanks are treated as normal samples (i.e. they are prepared with the normal samples); they consist of Eggo quarry quartz from a quartzite quarry near Pretoria. As this represents a natural geological material, small amounts of trace elements (e.g. copper and nickel) are expected to be present. Any contamination introduced during sample preparation and subsequent processes is reflected in the quartz blank (i.e. it becomes a known amount).

Reagent blanks are introduced during secondary preparation. These are essentially reagents without the sample introduced. For example, in fire assay the reagents would be assayed, a button made, the prill dissolved and the solution read. Reagent blanks reflect contamination introduced during the analysis phase, but not the primary preparation phase. Specific density and XRF data do not have reagent blanks, but do have quartz blanks.

With each method, certified (CRM) and in-house (IHRM) reference materials are run. These are usually type-specified to the method. For example, for Merensky Reef samples, fire assays for 3E and rhodium (also simply known as 4E) SARM7 (CRM) and MER001 (IHRM) are run. For XRF analyses IHRM are run, and for specific density calibration blocks both acid washed quartz and quartz are run.

For each method samples are replicated, if not twin-streamed. The 3E & rhodium are twin streamed (i.e. a 100 percent replication). For XRF and specific density analyses, ten percent replicates are run. Concentration/precision curves are calculated according to the Thompson Howarth algorithm, using replicate pairs. This is the stated precision to which

 

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AARL works, and monitors, for each method and for each analyte. Replicates are essentially used for measuring the precision of the analyses; appropriate action is taken if such results are not considered satisfactory.

ARC chemistry laboratory management attends progress meetings every two weeks where the quality and production of AARL is monitored (Mandi Visser, 2003). A comprehensive quality control system ensures that the data reported is within the quality control criteria and that all ISO standards are met.

14.2.1 Review of QA/QC Results

The following summarises the findings of the QA/QC evaluation of 7,969 samples from the Ga-Phasha Project area. These samples were analysed in a twin stream format at the AARL laboratory between August 2003 and March 2006. Approximately ten percent of these samples were split and sent off for analysis to the Genalysis laboratory in Australia for control purposes. However, only 282 of these results are available for import into the database so the full external laboratory comparison has been delayed. Results for the inserted blanks and standards have been evaluated.

The number of outliers were all within the accepted tolerance level (less than three percent is considered to be ideal and less than five percent is considered to be acceptable, acceptable if < 5 percent). Table 14.1 provides a summary of the percent outliers for the twin data stream A list with the percent outliers for the twin stream data is given in Table 14.1 below.

Table 14.1 Outliers as a Percentage of the data (N)

 

Element

   Outliers      N      % Outliers  

Pt

     66         7969         0.83   

Pd

     65         7969         0.82   

Rh

     60         2328         2.58   

Au

     98         7968         1.23   

Cu

     0         736         0.00   

Ni

     2         736         0.27   

After the outliers and values of less than ten times the relevant detection limit were removed, the following precision values, given in Table 14.2, were calculated:

 

Table 14.2 Summary of Precision data   
            Prec < 20%      Prec < 10%      Prec < 5%  

Element

   N      n      %      n      %      N      %  

Pt

     4806         4761         99.1         4481         93.2         3923         81.6   

Pd

     4232         4168         98.5         3994         94.4         3583         84.7   

Au

     1771         1756         99.2         1534         86.7         1073         60.6   

Rh

     1958         1949         99.5         1860         95         1574         80.4   

Cu %

     488         486         99.6         471         96.5         395         80.9   

Ni %

     731         731         100         731         100         730         99.9   

SG

     777         777         100         777         100         777         100   

The precision values for all the elements are all within the accepted tolerance levels. 90 percent is the threshold limit for platinum, palladium, copper, nickel and density; 80

 

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percent is used for rhodium and gold. This means that at least 80 percent or 90 percent of the data for a specific element should have a precision better than ten percent.

No bias between the results for Leg 1 and Leg 2 were noted with all the elements having a bias of less than approximately one percent. These low bias values are well within the accepted margin of error of ±5 percent. Table 14.3 shows the percent bias for the primary Lab (ie AARL) SARM71 standard. The bias was within the accepted tolerance limits – where if <±5 percent is considered to be ideal and if between ±5 and <±10 percent is considered acceptable.

 

Table 14.3 Data for the SARM71 standard  
     Pt g/t      Pd g/t      Au g/t      Rh g/t  

Average

     2.076         1.773         0.051         0.416   

Std Dev

     0.0656         0.0707         0.0044         0.0369   

%RSD

     3.16         3.99         8.63         8.87   

%Bias

     -0.21         6.19         -3.77         -3.26   

Consensus value

     2.08         1.67         0.053         0.43   

N

     18         18         16         13   

An evaluation of the results for the lab blanks did no show any sign of contamination as all the results were well within three times the respective detection limit for each element.

The number of outliers in the Genalysis data were all within the accepted tolerance level (less than three percent is considered to be ideal, acceptable if < 5 percent. Table 14.4 etc is a list with the percent outliers for the results of the check laboratory is given in Table 14.4 below.

Table 14.4 Outliers as a Percentage of the data (N)

 

Element

   Outliers      N      % Outliers  

Pt

     4         281         1.42   

Pd

     4         282         1.42   

Au

     6         263         2.28   

Rh

     4         233         1.72   

Cu %

     3         273         1.10   

Ni %

     6         281         2.14   

SG

     5         275         1.82   

After the outliers and values less than ten 10 times the relevant detection limit were removed, the following precision values, given in Table 14.5, were calculated:

Table 14.5 Summary of Precision data for the check results

 

            Prec < 20%      Prec < 10%      Prec < 5%  

Element

   N      n      %      n      %      n      %  

Pt

     258         256         99.2         243         94.2         203         78.7   

Pd

     2050         245         98         234         93.6         173         69.2   

Au

     134         125         93.3         109         81.3         57         42.5   

Rh

     221         216         97.8         195         88.2         142         64.3   

Cu %

     258         231         89.5         196         76         141         54.7   

Ni %

     275         275         100         272         98.9         226         82.2   

SG

     2070         270         100         270         100         269         99.6   

 

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The precision values for the platinum, palladium, nickel and density elements are all within the accepted tolerance level of 90 percent, ie this means that at least 90 percent of the data for a specific element should have a precision better than 10 percent. For gold and rhodium the accepted tolerance level is 80 percent, with the above precision values of 81 and 88 percent respectively, falling within the accepted value limits. The precision results for nickel and density are all within the accepted tolerance limits. The low precision value for copper (76 percent) is concerning and requires further investigation. The percent bias for the standards from the check laboratory is shown in Tables 14.6 &14.7.

Table 14.6 Data for the SARM65 standard

 

     Pt g/t      Pd g/t      Au g/t      Rh g/t  

Average

     2.671         1.304         0.029         0.551   

Std Dev

     0.077         0.047         0.006         0.034   

%RSD

     2.88         3.63         19.01         6.12   

%Bias

     1.19         1.86         -14.47         5.64   

Consensus value

     2.64         1.28         0.034         0.522   

N

     163         163         163         163   

Table 14.7 Data for SARM7 Standard

 

     Pt g/t      Pd g/t      Au g/t      Rh g/t  

Average

     3.710         1.521         0.274         0.240   

Std Dev

     0.1135         0.0463         0.0220         0.0104   

%RSD

     3.06         3.05         8.04         4.33   

%Bias

     -0.81         -1.23         1.52         0.16   

Consensus value

     3.74         1.54         0.27         0.24   

N

     82         82         82         82   

The percent bias for the SARM65 standard (Table 6) was within the accepted tolerance limits, with the exception of gold. However, the NiS technique used by Genalysis yields a poor recovery of gold, hence the high bias value of -14.5 percent, suggesting that they report lower relative to the certified value for gold. For the SARM7B standard the percent bias was within the ideal limit (<±5 percent) for all the elements. An evaluation of the results for the lab Blanks for Genalysis did not show any sign of contamination as all the results were well within 3 times the respective detection limit for each element.

In conclusion, the number of outliers for the twin stream as well as the check data is within the 3 percent ideal limit. With the exception of copper for the check results, all the elements for both data sets have acceptable precision results. No significant bias was found between the results for Leg 1 and Leg 2 for the twin stream data. The percent bias values for the twin stream as well as 10 percent check data are all within acceptable limits, except for the gold result for the SARM65 standard. An evaluation of the results for the lab Blanks from both laboratories, did not shown any signs of contamination. The precision and accuracy (as estimated by the percent bias) as well as the percent outliers for both datasets are all within the accepted tolerance criteria and the data is therefore believed to be suitable for its intended use.

 

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15 ADJACENT PROPERTIES

The Ga-Phasha Project area is adjacent to a number of platinum operations owned by Anglo Platinum and Impala Platinum.

 

15.1 Lebowa Platinum Mine

Anglo Platinum operates Lebowa Platinum mines that is located immediately to the north of the Ga-Phasha Project area.

Figure 15.1 The Lebowa Platinum project area

(from www.angloplatinum.com)

LOGO

 

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On September 4, 2007, Anooraq and Anglo Platinum announced that they had entered into a detailed transaction framework agreement (the “TFA”) by which Anooraq will acquire a 51 percent interest in Lebowa Platinum mines. Further details of the TFA are provided in Section 4.6 of this Technical Report. The current status of the Lebowa Mine, as summarized in Anooraq’s September 4, 2007 news release are as follows:

 

   

Lebowa platinum mine consists of a vertical shaft and declines with underground operations mining the Merensky and UG2 Reefs. In 2006, annual refined production was 202,500 ounces of platinum, palladium, rhodium and gold (“4PGE”), including 109,200 oz of platinum from its 140,000 tonnes per month (“tpm”) operation.

 

   

The scale of the mining operations at Lebowa is currently being increased to reflect the true quality of the mineral deposits. Expansion projects at Lebowa, approved by Anglo Platinum, are being implemented. The Middelpunt Hill UG2 and Brakfontein Merensky expansions will increase production to about 245,000 tpm, producing about 430,000 4PGE oz, including 200,000 oz of platinum, by 2012.

 

   

Upon completion of the transaction, Anooraq’s attributable share of the Lebowa production will be 51 percent of Lebowa production, that is, approximately 103,300 4PGE ounces (based on 2006 production). Upon completion of the Lebowa expansions announced to date, it is estimated that Anooraq’s attributable share will increase to approximately 219,300 4PGE ounces annually.

 

   

Operational control of the assets within Lebowa Holdco will pass to Anooraq on implementation of the transaction agreements.

 

   

Additional expansion projects at Lebowa on both the Merensky and UG2 Reef horizons are at an advanced stage of evaluation. Anooraq and Anglo Platinum believe there is scope for expansion of current operations to 350,000 tpm.

 

   

Lebowa has significant mineral reserves and resources which, according to Anglo Platinum’s Annual Report, at 31 December 2006, were:

 

   

proved and probable mineral reserves of 23.0 million tonnes grading 4.29 grams per tonne 4PGE in the Merensky Reef and 42.5 million tonnes grading 5.30 grams per tonne 4PGE in the UG2 Reef, plus

 

   

measured and indicated resources of 48.7 million tonnes grading 5.61 grams per tonne 4PGE in the Merensky Reef and 171.0 million tonnes grading 6.76 g/t grams per tonne 4PGE in the UG2 Reef, and

 

   

additional extensive inferred resources in both the Merensky and UG2 Reef horizons.

Documentation for the reserves and resources for Lebowa Platinum mines will be provided in a separate technical report (in progress).

 

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15.2 Twickenham Platinum Mine

The Ga-Phasha property was originally targeted for development by Anglo Platinum as part of a Twickenham-Hackney-Paschaskraal venture. Following a decision to separate Paschaskraal 466KS and Klipfontein 465KS for joint venture, Anglo Platinum undertook to develop the Twickenham-Hackney property.

Late in 2003, Anglo Platinum suspended development of Twickenham Platinum mine due to low South African Rand/US Dollar exchange rates. However, early in 2004 Anglo Platinum resolved to continue with a small mine centred on Hackney vertical shaft. The operation has since been reported to have ‘proved favourable under difficult economic conditions and has built-up (production) to 13,000 tonnes per month’. The initial mining is reported to have ‘proven most valuable with better than expected stoping widths and grade having been achieved’. These results are reported to have ‘laid the foundation to improve confidence levels on the proposed mining method as well as the geological model’.

Figure 15.2 The Twickenham Platinum project area

(from www.angloplatinum.com)

LOGO

Early in 2007 further plans had developed to continue growing output to 50,000 tonnes per month, pending final project approvals. At full production, Twickenham Platinum is scheduled to produce 150,000 tonnes of ore per month, yielding 60,000 ounces of PGEs per month.

In 2003 Anglo Platinum reported a measured resource of 35.4 million tonnes of UG2 Reef for Twickenham Platinum mine. The latest available resource statement was prepared by Anglo Platinum in December 2002 and shows the resources for the combined Twickenham-Paschaskraal project summarised on Table 15.1. Anglo Platinum geologists report that the geology and PGM occurrences at Twickenham Platinum Mine are very similar to those found across the Ga-Phasha Project area.

 

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Table 15.1: Anglo Platinum’s Resource Statement for Twickenham-Paschaskraal

 

Category

   Merensky Reef      UG2 Reef  
     Tonnes
(millions)
     Grade
4PGE(g/t)
     Tonnes
(millions)
     Grade
4PGE(g/t)
 

Measured

     3.360         4.40         35.380         5.38   

Indicated

     141.860         4.64         226.490         5.75   

 

15.3 Marula Platinum Mine

Impala Platinum’s Marula Platinum mine, originally known as Winnarshoek Project, is immediately to the south of Anglo Platinum’s Twickenham Platinum mine. Extensive exploration drilling has been conducted across the property, targeting reef depths from outcrop to 600 metres below surface. Both the Merensky and UG2 Reefs are present. They are separted by about 400 metres and they both dip at about 13° to the southwest. Ownership of 20 percent of Marula Platinum has been set aside for a stake by BEE entities.

The first phase of mining is targeted at the UG2 Reef to about 600 metres below surface (the deeper portions of the project area have not yet been explored); a feasibility study of Merensky Reef mining is scheduled for completion in 2007. Insitu UG2 Reef mineral reserves (probable category) at 30 June 2006 have been estimated at 41.0 million tonnes at 5.20 grams per tonne 5PGE+Au yielding 2.6 million platinum ounces. The estimated Merensky Reef resources (indicated and inferred categories) at 30 June 2006 total 49.4 million tonnes at 5.5 grams per tonne 5PGE+Au. The total resource, inclusive of the reserves (i.e. Merensky plus UG2 Reef in the measured, indicated and inferred categories), at 30 June 2006 has been estimated at 104.3 million tonnes at 7.77 grams per tonne 5PGE+Au, yielding 11.4 million platinum ounces and an estimated mine life of 17 years to about 600 metres below surface.

An inappropriate mining method (mechanised room & pillar) was initially employed that yielded excessive dilution and delayed the development of underground operations. A new, hybrid mining method has since been devised and implemented, incorporating both conventional stoping techniques and mechanised strike development. Full UG2 Reef production is planned at 211,000 tonnes per month. Production 2004 totalled 13,300 platinum ounces and in 2005 production totalled 766,000 tonnes of ore yielding 29,800 platinum ounces at a cost per ounce of 9,829 South African Rand. In 2006, the mine was scheduled to produce 61,900 ounces of platinum. The mine is scheduled to achieve production of around 75,000 platinum ounces in 2007, rising to 102,600 platinum ounces in 2008 and full production of 144,000 platinum ounces in 2009.

The metallurgical plant was cold-commissioned on schedule in December 2003, with hot commissioning completed in February 2004. A dense medium separator (“DMS”) plant was commissioned but subsequently by-passed as the mills, which have a capacity of 6,000 tonnes per day, are able to cope with the current levels of mine production. The DMS plant will be brought into production as tonnage outputs increase. Metallurgical recovery rates are reported to currently exceed 87 percent. Concentrate is transported to

 

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Impala Platinum’s Mineral Processes for smeltingand then to Impala Platinum’s refineries in Springs for refining. Tailings are disposed of conventionally in a tailings dam located near to the metallurgical plant.

 

15.4  Modikwa Platinum Mine

Anglo Platinum operates the Modikwa platinum mine, immediately to the south of Modikwa Platinum, in a 50:50 joint venture with a black economic empowerment consortium led by African Rainbow Minerals Consortium Limited. In terms of the joint venture, all metal produced is smelted and refined by Anglo Platinum. Anglo Platinum approved the project in 2000; construction work commenced during the third quarter of 2001 on the first mining phase, from surface to No. 4 Level.

Figure 15.3 The Modikwa Platinum project area

(from www.angloplatinum.com)

LOGO

The mine is still in build-up phase to 240,000 tonnes per month of UG2 Reef ore; it produces approximately 200,000 tonnes per month from two decline shafts. Interim funding was approved during 2005 by the joint venture partners to commence work on an extension from No. 4 Level to No. 5 Level, with both pre-feasibility and feasibility study work to implement Phase 2 extensions (No. 5 Level to No. 8 Level) during 2006.

The mine produced 53,700 ounces of PGEs from 460,000 tonnes of ore in 2002. About 90,000 platinum ounces were produced in 2003, rising to 114,200 platinum ounces in 2004 and 129,000 platinum ounces in 2005. In 2002 Anglo Platinum reported a UG2 Reef reserve (Proven & and Probable categories) of 6.6 million tonnes grading 4.6 grams per tonne 4PGE.

 

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16 MINERAL PROCESSING AND METALLURGICAL TESTING

Current (conceptual) studies assume a stand-alone operation at Ga-Phasha. The proposed strategy requires the construction of one 250,000 tonnes per month Merensky/UG2 Reef blend-tolerant plant that will be commissioned early in 2012, and a second 125,000 tonne per month plant to be commissioned later in 2013.

 

16.1  Merensky Recovery Rates

Core samples from Paschaskraal (PK) and Klipfontein (KF) boreholes through the Merensky Reef have been subjected to standard rougher flotation testing. The following table presents the average test results from all the drill cores examined. Head grade, recovery and concentrate grade are presented.

Table 16.1 Merensky Reef Rougher Flotation Recovery and Grade

 

Borehole

   Pt:Pd      4PGE
(g/t)
     Pt Recovery
(%)
     Pt Grade
(g/t)
     Pd Recovery
(%)
     Pd Grade
(g/t)
 

PK248

     1.9         3.34         94.5         22.8         95.3         11.6   

PK211

     1.6         5.08         95.8         35.1         96.4         20.7   

KF90

     1.8         4.17         94.0         41.6         95.2         23.0   

KF87

     2.0         3.18         94.8         29.1         94.6         14.7   

As is evident from the table above, the Paschaskraal property has a favourable platinum-palladium ratio, the average ratio for all the cores examined being 1.75:1. Platinum recoveries, from an average head grade of 4.21 grams per tonne vary between 94% and 96%, with an average concentrate grade of 29 grams per tonne. Palladium recoveries are slightly higher than platinum and vary between 95% and 96% with an average concentrate grade of 16 grams per tonne.

The Klipfontein cores also exhibit a favourable platinum-palladium ratio, the average ratio for all the cores examined being 1.9:1. Platinum recoveries, from an average head grade of 3.68 grams per tonne vary between 94% and 95% with an average concentrate grade of 35 grams per tonne. Palladium recoveries are slightly higher than platinum and vary between 94% and 95% with an average concentrate grade of 19 grams per tonne.

 

16.2  UG2 Recovery Rates

In May 1999, Anglo Platinum Research Center in Johannesburg undertook platenoid mineralogy and metallurgical testing on core samples of UG2 Reef material from Paschaskraal 466KS. The testwork (Table 16.2) indicated a very good flotation response with negligible effects from dilution and PGE recoveries ranging from 92.7 percent to 96.5 percent. The good flotation response was attributed to the predominant association of PGEs with base metal sulphides which are coarser than those present in UG2 Reef in the western Bushveld. Nickel, copper and sulphur recoveries were good for UG2-type ore,

 

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namely: 14-24 percent nickel, 77-86 percent copper and 83-90 percent sulphur (Table 16.3).

Table 16.2: PGE Flotation Test Results

 

Borehole

   Dilution
(%)
     Shear
Zone
     Recovery
(%)
     Concentrate
Grade
     Head
Grade
     Pt:Pd  

PK46

     38         N         95.0         178.3         4.72         1.22   

PK47

     28         N         96.5         192.4         6.05         0.96   

PK48

     32         N         96.0         177.1         6.43         0.93   

PK49

     22         Y         89.8         92.7         8.04         0.67   

Table 16.3: Base Metal Flotation Results

 

Borehole

   Sulphur      Nickel      Copper  
     Rec (5)      Con Grade      Rec (%)      Con Grade      Rec (%)      Con Grade  

PK46

     87.1         2.35         16.5         1.11         86.2         0.70   

PK47

     83.4         0.96         13.9         0.75         80.8         0.35   

PK48

     89.6         1.43         20.1         0.97         81.7         0.53   

PK49

     83.2         0.47         23.4         0.47         77.2         0.20   

Metallurgical recovery rates for Merensky Reef from Lebowa Platinum concentrator and from the results of bulk sampling testwork on UG2 Reef material from Twickenham Platinum mine are summarised on Table 16.4. The recovery rates are slightly lower than those summarised on Tables 16.2 and 16.3, due to the impact of subtle mineralogical variations between areas. It is anticipated that metallurgical bench tests will be carried out on suitable Merensky Reef and UG2 Reef samples from the Ga-Phasha Project area, as part of the planned feasibility studies.

Table 16.4: Anglo Platinum’s Average Recovery Rates

 

Element

   Average Recoveries  
     Merensky Reef     UG2 Reef  

Platinum

     91.2     86.0

Palladium

     90.7     87.7

Rhodium

     86.7     83.8

Gold

     72.7     69.2

4E

     89.5     86.4

Nickel

     64.8     24.5

Copper

     72.7     58.2

 

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17 MINERAL RESOURCE ESTIMATES

 

17.1  Data Sources – Merensky and UG2

De-surveyed, regressed borehole data was provided by Anglo Platinum, Mining and Geological Services, the Driekop Sable borehole database was the source of all borehole information.

Historically there have been a series of exploration drilling phases and as a result boreholes can contain different types of information depending on the reporting requirements at that time. Exploration boreholes, have generally been cored using various core diametres. A few boreholes were initially percussion drilled to a certain depth before being cored. Since 2001 exploration boreholes contain density, platinum, palladium, rhodium and gold individual element assay results (prill) as well as a 4PGE gram per ton value and include base metal assay values for copper and nickel.

Some earlier exploration program boreholes in the eastern limb were assayed for platinum, palladium, rhodium, iridium, ruthenium, and plus gold), copper, nickel, but rarely for density.

The differences can be summarised as follows:

 

   

since 2001 density and individual element (prill) analysis have been conducted on a routine basis;

 

   

copper and nickel grades assayed on a routine basis;

 

   

not all the borehole deflections or borehole reef intersections were assayed;

 

   

some boreholes were drilled for geotechnical/structural requirements; and

 

   

some deflections have been used for metallurgical/mineralogical determinations.

The validated Sable borehole database, (Driekop) was imported via a number of macros and/or GMSI scripts into Datamine. Subsequent validations were performed on the database to ensure that basic errors were “trapped”, edited in the original Sable databases and then re-imported.

17.1.1   Digital Information

The Merensky/UG2 outcrop, surface faults, dykes and slump/pothole geological features and the latest eastern Bushveld borehole surveys (November 2004) were supplied electronically by Anglo Platinum’s, Mining and Geological Services.

17.1.2   Aeromagnetic and Landsat images

The latest aeromagnetic and landsat images were supplied electronically from Anglo Platinum, Mining and Geological Services. The structural interpretation from the latest aeromagnetic information has been used.

 

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17.2   Merensky Reef Resource Estimate

17.2.1   Data Sources

17.2.1.1   Boreholes

The data provided contained a total of 291 Merensky Reef intersections either as single boreholes or boreholes containing up to six deflections, of which 257 occur within the Ga-Phasha property. All previous and new intersections were analyzed and re-interpreted. The original logged interpretations are preserved in the “STRAT” column and a new column was introduced to contain the re-interpreted stratigraphy. This new column is called “SSTRAT”. Details on the methodologies applied in the re-interpretation and re-flagging of valid intersections are discussed insection x.

Certain boreholes were drilled for metallurgical purposes and therefore only contain Merensky Reef, hangingwall and footwall stratigraphic information.

17.2.1.2   Database summary:

The following table (Table 17.1) summarises the borehole database information used for the compilation of the June 2006 Merensky Reef resource model. The database included boreholes from the neighbouring properties, a total of 16 reef intersections from Lebowa Platinum mines.

Table 17.1: Merensky Reef Borehole database summary

 

      TOTAL  

BOREHOLE DATABASE

  

Number of “parent” boreholes :

     127   

Number of Motherhole+deflections:

     291   

BOREHOLE Merensky Reef (MR) REEF INTERSECTIONS

  

Number of MR “parent” boreholes

     116   

Number of MR Motherhole+deflections

     257   

Number of MR Motherhole+deflections PGE ASSAY acceptable

     219   

Number of MR intersections (includes deflections) – PRILL (unregressed)

     94   

Number of MR intersections (includes deflections) – PRILL (regressed data)

     163   

Number of MR intersections (includes deflections) - DENSITY

     137   

Number of MR intersections (includes deflections) - Copper

     187   

Number of MR intersections (includes deflections) - Nickel

     187   

17.2.1.3   PGE correction factor:

No correction factors have been applied to the early Ga-Phasha boreholes. Exploration holes drilled since 2001 have been assayed at ARC/AARL, using the silver prill method that which is correction free.

17.2.1.4   Effective date:

The following dates define the final dates of data acceptance in the Merensky Reef modelling exercise:

June 2006: Surface exploration boreholes; and June 2006: Borehole sample results.

 

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Location Plots

The figure below shows the spatial distribution of validated boreholes used for the generation of the Merensky Reef resource model. Black circles denote all valid drill-hole intersections; the UG2 outcrop (purple), Merensky outcrop and limits of fresh ore (orange) and the farm boundaries (grey). The Blue polygon denotes a “Mega Slump’” feature and the green polygons outlines the “Pothole Edge” type facies.

LOGO

Figure 17.1: Spatial distribution of boreholes.

 

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Figure 17.2 shows the 40 metres weathering/oxidation depth perimeter in pale brown. The purple and orange lines show the UG2 and Merensky Reef subcrops respectively.

LOGO

Figure 17.2: Weathering/oxidation perimeter.

 

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Location of validated boreholes with prill data

Figure 17.3 shows the spatial distribution of the boreholes with validated assay information shown in Red. Those boreholes containing prill split information have been used to create regression curves for platinum, palladium, rhodium and gold; which have been used to regress the prill splits for the 164 boreholes that only reported 4PGE values. Figure 17.4 shows those boreholes that only reported 4PGE values in Black.

LOGO

Figure 17.3: Spatial distribution of boreholes with prill information (Red)

 

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The following figure illustrates those boreholes which will have regressed individual prill element values determined.

LOGO

Figure 17.4: Spatial distribution of boreholes without assayed prill information, in Black.

 

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Location of validated boreholes with Copper/Nickel data

Figure 17.5 shows the spatial distribution of the boreholes containing copper/nickel assay information for the Merensky Reef.

LOGO

Figure 17.5: Spatial distribution of boreholes with copper/nickel assay information.

 

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Location of validated boreholes with density data

Figure 17.6 shows the spatial distribution of the boreholes containing density information for Merensky Reef. Black dots represent boreholes with no density values.

LOGO

Figure 17.6: Spatial distribution of boreholes with density information.

 

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17.2.2   Database Verification

The Sable borehole database was validated as follows:

 

   

Validation in Sable to check for overlaps/gaps within individual boreholes/ deflections.

 

   

Validation in Sable to cross-check PGE assay verses individual element assays (prill).

 

   

Validation in Datamine/Excel for lithological and assay alignment checking and correlations.

 

   

Additional fields were added, namely: NSTRAT, SSTRAT, GEOTEC and STATUS and USE. These fields are used for re-interpretation purposes and to ensure that the final borehole file contained identical fields for audit and/or other Datamine processes.

 

   

The original “STRAT” coding from the Sable databases is maintained.

 

   

All the Excel files generated are “colour” coded using the NSTRAT/ SSTRAT/GEOTEC field to highlight different lithologies.

 

   

The USE field is used to identify if a borehole can be used as follows:

 

   

Merensky Reef lithological architecture and grade profile acceptable: USE=1

 

   

Merensky Reef lithological architecture, grade and thickness profile unacceptable : USE=0

All reef intersections that have been deemed invalid, are reported in an exclusion files, with relevant comments.

 

   

Spatial validations were performed in Datamine to ensure that the boreholes plotted within the project area and within the Merensky Reef outcrop. The creation of a Merensky Reef digital terrain model (DTM) enabled anomalous elevations and possible Pothole reef types to be identified.

 

   

Only those boreholes with an inclination of between 60 and 90 degrees were used in the geological model grade and thickness estimation processes.

Datamine validation procedures:

The validation of data is more critical than the adoption of the correct estimation technique. The Anglo Platinum standardized “Valid3.mac” was used to perform the general validations. Errors and inconsistencies are flagged for follow up verification; flagged data is not automatically removed.

 

   

Checks are performed to locate:

 

   

Missing start of hole.

 

   

Unit overlaps.

 

   

Unit gaps.

 

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Missing “PGE” grades within the reef unit.

 

   

Units of zero thickness.

 

   

Duplicated sample grades and widths within sections.

 

   

Duplicated sample grades and widths in different sections.

 

   

Sample grades outside minimum/maximum thresholds.

 

   

Collars of different underground sections and/or boreholes within a distance tolerance.

 

   

Sampled lengths less than a minimum or greater than a maximum thickness tolerance.

 

   

Grade in the hangingwall or footwall where the PGE grade over a certain width lies within a certain distance of the reef. This means that the process is looking for any values of greater than (for example) 10 grams per tonne with a thickness of 10 centimetres or greater within a distance of 2 metres above or below what has been identified as “MR”.

 

   

Boreholes/sections where there is neither hangingwall nor footwall data, i.e. there is no confirmation of full reef exposure.

 

   

Composited thickness of reef below or above a certain threshold. Added caution needs to be taken into account when dealing with inclined boreholes.

 

   

“PGE” grade distributions that are not bimodal. The Merensky Reef at a number of operations exhibit similar characteristics especially if the reef is characterised as a pegmatoid bounded by an upper and lower chromitite.

 

   

Density values out of the range specified. For example the expected density values for the samples within the Merensky Reef might range from 3.0 to 3.5 however values above or below these reporting within the Merensky Reef need to be reported for checking. The Merensky Reef density values vary between a much tighter range (3.0 and 3.5) therefore any deviation needs to be investigated.

 

   

Downhole survey dip angles lying outside of the tolerance limits set.

 

   

Duplicated reef intersections within a borehole or underground section.

 

  1) The file to be validated must be a desurveyed file. It is recommended that the validation is performed after data import, after any major transformation or editing process to ensure that assumptions made during data transformations are valid.

 

  2) The validation reports do not necessarily imply that the data is invalid; the reports serve to highlight potential problem areas. It is essential that all errors are investigated and actions recorded in a Validation report.

 

  3) One error type can trigger/mask other errors or potential errors.

The following validation processes have been developed during the most recent geological modelling exercises. The prill and regression exercises have been successfully performed on the Ga-Phasha borehole dataset.

 

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Validate prill and PGE from the assay file:

Checks are performed to locate:

 

   

Sum of individual element (Pt+Pd+Rh+Au) prills match within a certain tolerance the “PGE” value.

 

   

Prill grades outside minimum/maximum thresholds.

 

   

The Pt: Pd ratio outside of the range.

NOTE: Rhodium (Rh) is not determined when the Pt + Pd + Au grade is less than 1.5 grams per tonne (ARC) and 3.0 grams per tonne (other laboratories). A regression facility is available (macro: pgereg.mac) and will insert an entry when a sample prill is missing within a reef.

Verify the lithological sequence:

The “litho” file was verified for the “lith” sequence based on a lithological dictionary file. Units that are not constrained to a particular stratigraphic horizon, dykes for example are ignored when performing the sequence check.

17.2.3   Compositing

The final validated Datamine desurveyed and regressed file (regress.dm) was used for the generation of the necessary Merensky Reef composite file.

The validated lithology field, SSTRAT, for the Merensky Reef zone contains “MR” and identifies the Merensky Reef band.

Compositing criterion were:

 

   

Composite over the complete “SSTRAT” unit.

 

   

Minimum composites reported were 0.001 metre.

 

   

Since assay gaps within the SSTRAT units did not exist (part of the validation procedure) the use of default grades did not apply.

NOTE:

 

   

Only those boreholes with an inclination of between 60 and 90 degrees were used in the geological model grade and thickness estimation processes.

 

   

The compositing was density and length weighted.

 

   

The TRUETHK process was used to determine true thickness. This process requires the strike and dip of the Merensky Reef surface to be defined. A DTM of the top reef contacts were used to calculate the orientations of the DTM triangles. A dip of 15 degrees and dip azimuth of 233 degrees was used.

 

   

Individual element (Prill) compositing was performed on all the boreholes (after regression techniques were applied to determine absent prill values.

 

   

All footwall and hanging composites were based on actual, uncorrected sample lengths however borehole dips varied between 82.8 and 90 degrees, with a mean

 

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of 88.8 degrees. Hence, on average, every 15 centimetres of composited length equates to 14.4 centimetres True length.

17.2.4   Potholes in the Merensky Reef

Where local changes in strike and dip occur it is likely that the changes are induced by potholes or rolls, resulting in the Merensky Reef forming depressions or wave-like structures respectively.

Potholes are more disruptive to the layering than rolls. Within a pothole, the Merensky Reef might be poorly developed (less than 30 centimetres in thickness) or it might only be represented by the sporadic development of chromitite stringers or blebs of chromitite. The base of the pothole is normally several metres below the expected elevation.

No regular distribution has been determined for these potholes. UG2 and Merensky potholes occur independently of one another. However, in places potholing of the Merensky Reef may significantly affect the underlying UG2 Reef zone.

Within the Ga-Phasha Driekop Sable database, the stratigraphy codes do not always identify those boreholes intersecting the Merensky Reef that are affected by potholing. The size, shape, depth and regularity of these potholes are highly variable. Although there is limited information available, Merensky Reef potholes in the Lebowa area are known to be of the destructive type, where the reef is highly irregular, disrupted and un-mineable. In the Ga-Pasha area, a “Mega Slump” feature has been identified, where the Merensky Reef has been slumped to about 200m below its normal elevation. Due to the destructive nature of potholes, all the resources within the “Mega Slump” has been excluded from the resource evaluations. There is a possibility that portions of the “Mega Slump” may be Mineable, but this can only be assessed by a denser drilling grid. Every borehole within this pothole showed highly disrupted, discontinuous mineralisation, often with unrecognizable Merensky Reef. Approximately 10 boreholes were laid out and the disrupted stratigraphy was confirmed by Ian McCutcheon and Russel Booth.

Potholes have been described as thermo-chemical erosional structural features mainly caused by defluidisation and degassing of magmas as well as convection and movement of restfluids in magmas. In general they vary in shape from circular to elliptical. The nature of, or lack of hangingwall and/or footwall succession are often indicators of potential pothole scenarios. The steepening in dip of the hangingwall chromitite stringers or Merensky Reef might also indicate potential pothole features. Undulations and thinning of the Merensky Reef do not always indicate potholes but be indicative of natural processes. Occasionally potholes are associated with crosscutting irregularly shaped replacement pegmatite rocks.

Figure 17.7 illustrates the spatial distribution of Ga-Phasha boreholes that have been classified as intersecting potential Merensky Reef “potholes” in red. The blue polygon outlines the “Mega Slump” feature. The “Mega Slump” is surrounded by a halo of poorly developed reefs, characterized by thin reef widths, sporadic grade profiles between deflections and lower than average grades. This halo is contained within the green polygon and is referred to as the “pothole edge” facies. Other red circles represent localized potholes, and have been excluded from the resource estimations. The geological loss adjustment factors will take cognizance of localized potholes.

 

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LOGO

Figure 17.7: Merensky Reef borehole and pothole information.

Note: Only 3 boreholes outside of the “Klipfontein slump” are indicative of pothole mineralization.

In summary, the spatial limits of the “Mega Slump” and the “Pothole Edge” has been inferred towards the southern and south western limits. Further closely spaced drilling is crucial is delineating this feature and identifying other similar features on the property.

17.2.5   Influence of Faults and Dykes

The predominant dyke direction has a strike direction of ~NNE-SSW although various other directions can be seen in the figure below. The dykes are indicated in bright green. These dykes are dolerites of Karoo and Post Karoo age and could be related to each other during the Karoo extension period. They are generally vertical or close to vertical but can vary as a result of local changes in dip and strike. These dips can vary between 70 and 90 degrees and vary in thickness from several centimetres to approximately 30 metres.

A number of trenches were completed to gain further information on the dykes with respect to their ground conditions, width and orientation. On the Klipfontein and Paschaskraal farms a total of 3 and 24 trenches were excavated respectively. Eight of the trenches were excavated on the UG2 suboutcrop in the southern portion of Paschaskraal which is where the proposed shaft will be sited.

 

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Figure 17.8 shows the dyke (green) and fault (red) distribution within the Ga-Phasha project area. These are the dykes/faults that might have an impact on the mining of the Merensky Reef and UG2 resource. Seismic survey would help quantify the impact of the dyke and fault displacements of the reef surface.

LOGO

A preliminary interpretation by Langwieder (2004) of the regional structural pattern on and around the Ga-Phasha project area was based on underground visits to Hackney shaft; first pass interpretation of the latest aeromagnetic data; interpretation of Landsat images; limited interpretation of ortho-photographs; limited surface mapping; and borehole drilling information

As a result of the information above, six prominent features were recognised, namely:

 

  1)

NNW-SSE, E-W (WNW-ESE), NNE-SSW Felsic Joints – from underground visits to Hackney the most common features found are centimetres scale felsic pegmatoidal filled joints. They commonly comprise of quartz, biotite mica and chlorite and often show shearing on the contact surfaces. As they are

 

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pegmatoidal they are thought to be the last stage of cooling of the Bushveld Complex. They generally are steeply dipping and strike at 20 to 25 degrees. They cause minimal disruption to the reef plane but can cause considerable stability type problems.

 

  2) East West dykes – these are sparsely distributed, recognised on the aeromagnetic images – shown in bright green in Figure 17.8 and possibly formed at the same time as the felsic jointing.

 

  3) NNE-SSW trending dykes – these are the most common structural feature and consist of swarms of two to seven individual dykes (shown in bright green in Figure 17.8). They are generally en-echelon in surface expression with right lateral movements. They have intruded along pre-existing felsic joint directions. The displacement along these features is not thought to be excessive (~1 – 10 metres), but their en-echelon nature causes disruption and faulting of the adjacent rocks.

 

  4) Dyke related en-echelon faults – these faults, resulting from dyke intrusion, are common in surface expression. They comprise of quartz, calcite and mylonite/breccia infill and trend between 150 and 180 degrees.

 

  5) NNW-SSE, E-W (WNW-ESE), NNE-SSW lineaments. Found on the Landsat images, showing as lines of trees or bushes on the orthophotos. These could be pre Bushveld structures that have manifested their signature or they could be minor thrust traces (part of the red traces shown in Figure17.8).

 

  6) Normal and Reverse faults – observed underground at Hackney area with throws of up to ~5 metres, they can be nested fault zones with alternating up and down throws. These features are not observed on surface and are not obvious from the borehole drilling. They are likely to pose a structural complication. Therefore special attention should be applied to the mapping and interpretation of these features.

Observations from Lebowa indicate that dyke/fault/joint features do not pose any significant problems.

17.2.6   Geological Loss Determination

A detailed Geological Loss Report for the Ga-Phasha project has been compiled by Gernot Langwieder (December 2004) entitled: Geological Loss Estimation, Ga-Phasha JV PGE Project. The following paragraphs summarise the finding of the above mentioned report.

Geological losses have been determined based on the information gained as a result of the following activities or components:

 

  1) surface exploration drilling (logging, assay etc)

 

  2) Datamine modelling – digital terrain model (DTM) surfaces

 

  3) surface mapping

 

  4) trenching

 

  5) aeromagnetic information

 

  6) aerial photography

 

  7) landsat imagery

 

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  8) surrounding mines a where the Merensky Reef is being mined

 

  9) historical information (previous reports)

Geological losses have been categorised into the following criterion for the Ga-Phasha project:

 

  1) Potholes

 

  2) Faults

 

  3) Dykes

 

  4) Replacement pegmatite

Table 17.2 summarises the geological losses that have been applied to the Klipfontein, Paschaskraal resource tabulations in 2006.

Table 17.2: Geological loss summary.

 

FARM

   Potholes      Faults      Dykes      Replacement
pegmatite
     TOTAL
GEOLOGICAL
LOSS
 
     %      %      %      %      %  

Paschaskraal

     13         6         3         5         27   

Klipfontein

     13         6         3         5         27   

The geological loss of Klipfontien has been reduced from 35 percent in the previous study to 27 percent in this study. The reason for the decrease is due to the “Mega Slump” (See figure 9.1) being excluded from the resource evaluations.

17.2.7   Merensky Reef Geozone Definitions

Geological domains (geozones) were interpreted from first principles. Each reef intersection together with the respective deflections and surrounding boreholes, were interrogated with respect to abnormal lithologies above and below the reef contacts, inter and intra reef thicknesses and chromitite development and grade profiles. The intersections were then flagged into three geozones namely, Normal, Pothole Edge and Pothole type.

The limits of the three geozones were then spatially constrained. Figure 17.9 below illustrates the three geozones. The red circles represent pothole intersections. Pothole intersections on the Klipfontien boundary have been delineated by the blue polygon and commonly referred to as the “Mega Slump”. The green polygon encloses the Pothole edge type intersections. All resources within the “Mega Slump” have been excluded from the resource evaluation. Isolated pothole intersections on Pashaskraal have been excluded from the dataset used in resource estimation, however the loss of these resources are accounted for in the geological loss determinations.

 

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LOGO

Figure 17.9 showing the 3 Geozones

17.2.8   Classical Statistics

The following statistics tables have been derived from the validated borehole composite files and represent the “Hangingwall 10 centimetres”, “MR Reef” and “Footwall 30 centimetres and 45 centimetresinformation, and includes borehole data from the neighbouring Anglo Platinum lease areas:

 

   

Reef width (uncorrected width=Length and corrected width=Truethk)

 

   

Reef grade

 

   

Density

 

   

Copper percentage (%)

 

   

Nickel percentage (%)

 

   

Platinum grade

 

   

Palladium grade

 

   

Rhodium grade

 

   

Gold grade

 

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These tables illustrate the borehole data, by recording the number of composited reef intersections (Records) and the actual number of data points/intersections (Samples) with real values. The minimum, maximum range, mean, variance and standard deviation are reported. The following tables represent the borehole statistics prior to any cutting or capping or further modification but after regression of missing prills.

The following Table 17.3 reports the Hangingwall “10 centimetres” borehole composite statistics.

Table 17.3: Hangingwall “10 centimetres” Classical statistics

 

UNIT

   FIELD    NRECORDS    NSAMPLES    MINIMUM    MAXIMUM    RANGE    MEAN    VARIANCE    STANDDEV

HW 10cm

   PGE    260.00    222.00    0.0200    17.3230    17.3030    3.5290    13.0090    3.6068

HW 10cm

   PT    260.00    222.00    0.0019    10.5100    10.5081    2.0970    4.7213    2.1729

HW 10cm

   PD    260.00    222.00    0.0019    5.5505    5.5486    1.0129    1.2926    1.1369

HW 10cm

   RH    260.00    222.00    0.0001    0.6514    0.6512    0.1002    0.0111    0.1054

HW 10cm

   AU    260.00    222.00    0.0161    1.9783    1.9622    0.3189    0.0858    0.2929

HW 10cm

   CU    260.00    190.00    0.0088    0.2910    0.2822    0.1194    0.0026    0.0510

HW 10cm

   NI    260.00    190.00    0.0388    1.0500    1.0112    0.2722    0.0163    0.1278

HW 10cm

   SG    260.00    142.00    3.0700    3.8400    0.7700    3.4056    0.0145    0.1205

The following Table 17.4 reports the initial Merensky Reef borehole composite statistics, weighted on length.

Table 17.4: Merensky Reef Classical statistics

 

UNIT

   FIELD    NRECORDS    NSAMPLES    MINIMUM      MAXIMUM      RANGE      MEAN      VARIANCE      STANDDEV  

MR

   LENGTH    257    257      0.149994         1.820008         1.670014         0.87722         0.095006         0.308231   

MR

   TRUETHK    257    257      0.144883         1.779647         1.634764         0.849572         0.089044         0.298403   

MR

   USE    257    257      1         1         0         1         —           —     

MR

   PGE    257    219      0.771761         16.34         15.56824         4.950067         9.275955         3.045645   

MR

   PT    257    219      0.475732         11.05         10.57427         3.044573         3.220672         1.794623   

MR

   PT    257    219      0.064171         6.667303         6.603132         1.407544         1.100718         1.049151   

MR

   RH    257    219      0.014145         0.67         0.655855         0.174657         0.01307         0.114325   

MR

   AU    257    219      0.031317         1.380889         1.349572         0.323294         0.062953         0.250905   

MR

   CU    257    187      0.005415         0.361233         0.355818         0.092548         0.004689         0.068476   

MR

   NI    257    187      0.026984         0.688803         0.661819         0.231841         0.015864         0.125954   

MR

   SG    257    137      3.018442         3.65         0.631558         3.410145         0.011398         0.106764   

 

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The following Table 17.5 reports the Merensky Reef Footwall 30 centimetres borehole composite statistics.

Table 17.5: Merensky Reef Footwall “30 centimetres” Classical statistics

 

UNIT

   FIELD    NRECORDS    NSAMPLES    MINIMUM    MAXIMUM    RANGE    MEAN    VARIANCE    STANDDEV

FW30

   LENGTH    217    217    0.260    0.300    0.040    0.300    0.000    0.003

FW30

   USE    217    217    1.000    1.000    0.000    1.000    —      —  

FW30

   PGE    217    217    0.020    39.921    39.901    3.407    18.552    4.307

FW30

   PT    217    217    0.003    26.052    26.050    2.096    7.185    2.680

FW30

   PD    217    217    0.009    11.593    11.584    1.015    1.921    1.386

FW30

   RH    217    217    0.001    1.734    1.733    0.145    0.037    0.192

FW30

   AU    217    217    0.005    0.952    0.947    0.151    0.038    0.195

FW30

   CU    217    189    0.000    0.282    0.282    0.032    0.002    0.040

FW30

   NI    217    189    0.010    0.566    0.556    0.109    0.007    0.081

FW30

   SG    217    143    2.919    3.773    0.854    3.301    0.022    0.149

The following Table 17.6 reports the Merensky Reef Footwall 45 centimetres borehole composite statistics.

Table 17.6: Merensky Reef Footwall “45 centimetres” Classical statistics

 

UNIT

   FIELD    NRECORDS    NSAMPLES    MINIMUM    MAXIMUM    RANGE    MEAN    VARIANCE    STANDDEV

FW45

   LENGTH    208    208    0.367    0.450    0.083    0.447    0.000    0.013

FW45

   USE    208    208    0.000    1.000    1.000    0.986    0.014    0.119

FW45

   PGE    208    208    0.020    32.162    32.142    2.906    13.252    3.640

FW45

   PT    208    208    0.003    20.469    20.466    1.754    4.893    2.212

FW45

   PD    208    208    0.009    9.558    9.549    0.893    1.448    1.203

FW45

   RH    208    208    0.001    1.639    1.639    0.121    0.027    0.166

FW45

   AU    208    208    0.007    0.964    0.957    0.138    0.029    0.170

FW45

   CU    208    181    0.000    0.240    0.240    0.030    0.001    0.037

FW45

   NI    208    181    0.010    0.489    0.479    0.103    0.005    0.071

FW45

   SG    208    137    2.924    3.774    0.850    3.285    0.023    0.151

Note: The composite lengths for the Footwall 30 and 45 centimetres are based on actual downhole lengths and have not been corrected for true thickness.

Histograms and scatterplots

Hangingwall “10 centimetres” Histograms (graphs are in Appendix 2)

The histograms are restricted to the borehole information of the composited “hangingwall” dataset. Data from the neighboring farms have been included in the statistical and geostatistical analysis. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. These histograms may exclude boreholes that were cut for the semivariogram analysis. The validated borehole grade,

 

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thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in Appendix 2.

 

  1) Borehole PGE values show a distribution with 222 data points ranging in value from 0.02 to 17.32 grams per tonne with a mean of 3.53 grams per tonne.

 

  2) Borehole platinum (Pt) prill values show a distribution with 222 data points ranging in value from 0.0018 to 10.51 grams per tonne with a mean of 2.09 grams per tonne.

 

  3) Borehole palladium (Pd) prill values show a distribution with 222 data points ranging in value from 0.0018 to 5.55 grams per tonne with a mean of 1.01 grams per tonne.

 

  4) Borehole rhodium (Rh) prill values show a distribution with 222 data points ranging in value from 0.00012 to 0.65 grams per tonne with a mean of 0.10 grams per tonne.

 

  5) Borehole gold (Au) prill values show a distribution with 222 data points ranging in value from 0.016 to 1.97 grams per tonne with a mean of 0.32 grams per tonne.

 

  6) Borehole copper (Cu) values show a distribution with 190 data points ranging in value from 0.008 to 0.29 percent with a mean of 0.12 percent.

 

  7) Borehole nickel (Ni) values show a distribution with 190 data points ranging in value from 0.038 to 1.05 percent with a mean of 0.272 percent.

 

  8) Borehole density values show a distribution with 142 data points ranging in value from 3.07 to 3.84 with a mean of 3.40.

Merensky Reef Histograms (graphs are in Appendix 2)

The histograms are based on the borehole information of the composited reef, including both the “Normal” and “Pothole Edge” domains. Variography was performed on only the “Normal” reef domain, with the same parameters being applied to the “Pothole Edge” domain. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis.

 

  1) Borehole PGE values show a positively skewed distribution with 220 data points ranging in value from 0.77 to 16.34 grams per tonne with a mean of 4.96 grams per tonne.

 

  2) Borehole thickness (TRUETHK) values show a distribution with 247 data points ranging in value from 0.3 to 1.78 metres with a mean of 0.88 metres.

 

  3) Borehole platinum (Pt) prill values show a positively skewed distribution with 220 data points ranging in value from 0.475 to 11.05 grams per tonne with a mean of 3.048 grams per tonne.

 

  4) Borehole palladium (Pd) prill values show a positively skewed distribution with 222 data points ranging in value from 0.064 to 7.405 grams per tonne with a mean of 1.463 grams per tonne.

 

  5) Borehole rhodium (Rh) prill values show a positively skewed distribution with 222 data points ranging in value from 0.014 to 0.67 grams per tonne with a mean of 0.177 grams per tonne.

 

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  6) Borehole gold (Au) prill values show a positively skewed distribution with 224 data points ranging in value from 0.031 to 1.38 grams per tonne with a mean of 0.329 grams per tonne.

 

  7) Borehole copper (Cu) values show a positively skewed distribution with 192 data points ranging in value from 0.005 to 0.36 percent with a mean of 0.094 percent.

 

  8) Borehole nickel (Ni) values show a positively skewed distribution with 192 data points ranging in value from 0.026 to 0.779 percent with a mean of 0.235 percent.

 

  9) Borehole density values show a normal distribution with 141 data points ranging in value from 3.01 to 3.65 with a mean of 3.41.

Footwall 30 centimetres Histograms (graphs in Appendix 2)

The histograms are based on the borehole information of the composited reef for the 30 footwall component. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. The validated borehole grade, thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in Appendix 2.

 

  1) Borehole PGE values show a positively skewed distribution with 217 data points ranging in value from 0.02 to 39.920 grams per tonne with a mean of 3.407 grams per tonne.

 

  2) Borehole platinum (Pt) prill values show a positively skewed distribution with 217 data points ranging in value from 0.002 to 26.05 grams per tonne with a mean of 2.096 grams per tonne.

 

  3) Borehole palladium (Pd) prill values show a positively skewed distribution with 217 data points ranging in value from 0.008 to 11.59 grams per tonne with a mean of 1.015 grams per tonne.

 

  4) Borehole rhodium (Rh) prill values show a positively skewed distribution with 217 data points ranging in value from 0.0005 to 1.73 grams per tonne with a mean of 0.145 grams per tonne.

 

  5) Borehole gold (Au) prill values show a positively skewed distribution with 217 data points ranging in value from 0.0005 to 0.95 grams per tonne with a mean of 0.151 grams per tonne.

 

  6) Borehole copper (Cu) values show a positively skewed distribution with 189 data points ranging in value from 0.0003 to 0.28 percent with a mean of 0.032 percent.

 

  7) Borehole nickel (Ni) values show a positively skewed distribution with 189 data points ranging in value from 0.01 to 0.0.565 percent with a mean of 0.109 percent.

 

  8) Borehole density values show a normal distribution with 143 data points ranging in value from 2.91 to 3.77 with a mean of 3.30.

Footwall 45 centimetres Histograms (graphs in Appendix 2)

The histograms are based on the borehole information of the composited reef for the 45 centimetres footwall component. These histograms are sourced from the Snowden

 

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“Supervisor” software which was used for the semivariogram analysis. The validated borehole grade, thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in Appendix 4.

 

  1) Borehole PGE values show a positively skewed distribution with 208 data points ranging in value from 0.02 to 32.16 grams per tonne with a mean of 2.90 grams per tonne.

 

  2) Borehole platinum (Pt) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0027 to 20.46 grams per tonne with a mean of 1.75 grams per tonne.

 

  3) Borehole palladium (Pd) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0087 to 9.55 grams per tonne with a mean of 0.893 grams per tonne.

 

  4) Borehole rhodium (Rh) prill values show a positively skewed distribution with 208 data points ranging in value from 0.00055 to 1.63 grams per tonne with a mean of 0.121 grams per tonne.

 

  5) Borehole gold (Au) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0068 to 0.964 grams per tonne with a mean of 0.138 grams per tonne.

 

  6) Borehole copper (Cu) values show a positively skewed distribution with 181 data points ranging in value from 0.0004 to 0.0.24 percent with a mean of 0.0.030 percent.

 

  7) Borehole nickel (Ni) values show a positively skewed distribution with 181 data points ranging in value from 0.01 to 0.48 percent with a mean of 0.103 percent.

 

  8) Borehole density values show a normal distribution with 181 data points ranging in value from 2.92 to 3.28 with a mean of 3.28.

Grade versus Thickness Scatterplots (graphs are in Appendix 2)

In order to determine whether it was necessary to krig the PGE accumulation, the relationship between the PGE grade and Merensky Reef channel width was investigated.

 

  17.2.9  Cutting Strategy

A cutting strategy procedure was followed to exclude those boreholes that contained abnormal values. The initial database validation procedure would have already identified a number of boreholes and/or underground sample sections with abnormal grade values or thicknesses, therefore all validated intersections were used in the estimations. After reviewing the Merensky Reef histograms and cumulative frequency plots, cuts were applied to improve the variography.

The following cuts were applied to the respective datasets:

 

   

FW 30: PGE Cut at 14 grams per tonne

 

   

FW 45: PGE Cut at 27 grams per tonne

 

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For the Merensky Reef, all intersections less than 0.3 metres were excluded from the variography.

The following Cuts were applied to the Merensky Reef

 

•    Platinum

           cut at 12 grams per tonne

•    Palladium

           cut at 8 grams per tonne

•    Rhodium

           cut at 0.68 grams per tonne

•    Gold

           not cut

•    Copper

           not cut

•    Nickel

           cut at 0.7 percent

 

  17.2.10  Merensky Reef Variography (graphs are shown in Appendix 3)

The Snowden “Supervisor” software was used for the semivariogram analysis. Variograms were generated on the composited cut data files. Since the distributions were normal, variograms were modelled using the untransformed data for motherholes and deflections. The previous database was replaced with the updated database in “Supervisor” in order to compare the previous variography with the updated dataset. In general, the additional data points served to confirm the existing variogram models, and in some cases, only minor adjustments to the variogram parameters were made.

Since the software allows the lag distance to be dynamically varied, the determination of the nugget and spatial variance for the different structures was performed at appropriate lags. Anisotropy was apparent in some variance contours but it was felt that this was due to the data distribution. The adoption of an isotropic model would enable the data to impart the required orientation rather than forcing an anisotropy onto the estimation.

 

  17.2.11  Merensky Reef Geotechnical Considerations

The upper limit of the Merensky Reef is a chromitite stringer, without any parting plans within the immediate hangingwall of the top reef contact to pose an impact on mining. In general however, it is expected that mining operations will introduce hangingwall dilutions. A 10 centimetres hanging wall dilution model was created to account for this overbreak.

The first 10 centimetres of the samples above the Merensky Reef contact was composited into a single sample and formed the dataset for the evaluation of the hanging wall overbreak.

Figure 17.10 below illustrates the PGE distributions within the immediate 10 centimetres of hangingwall above the reef contact.

 

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LOGO

Figure 17.10: PGE distributions of the Hanging Wall 10 centimetres Model.

The hangingwall PGE grade varies between 0.8 up to 8 grams per tonne. The hanging wall grades appear to be higher on the Paschaskraal boundary. The hangingwall PGE grades seem to decrease at close proximity to the “Mega Slump” feature.

 

  17.2.12  Merensky Reef Mining Considerations

At Ga-Phasha the Merensky Reef Resource cut is made up of three components namely:

 

  1) upper portion – hangingwall dilution (hanging wall 10 centimetres)

 

  2) main portion – Merensky Reef

 

  3) lower portion – footwall pegmatoidal pyroxenite

A Resource cut grade and width has been calculated, using length and density weighting of the individual components, to generate a variable width in-situ mineable resource for a targeted minimum mining width of 90 centimetres.

The following criteria are used to determine the optimum mineable resource cut:

 

  1. The 10 centimetres hangingwall, entire Merensky Reef Main portion and a minimum of 10 centimetres Footwall must be included in the mineable resource cut.

 

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  2. The Footwall 30 and 45 centimetres models are contoured according to PGE grades. A 2 grams per tonne t cutoff was used as a guideline to demarcate areas where the footwall grades are greater than 2 grams per tonne PGE. If the 30 centimetres cut is above the 2 grams per tonne and the 45 centimetres cut below 2 grams per tonne, the 30 centimetres cut is used. If both the 30 centimetres and 45 centimetres cuts are above 2 grams per tonne, then the 45 centimetres cut is used. If the footwall cuts are less than 2 grams per tonne, then the 10 centimetres footwall cut is added.

 

  3. A minimum of 90 centimetres stope-cut is assumed, therefore in areas where the hangingwall, plus Merensky Reef, plus footwall is less than 90 centimetres, the appropriate footwall model is added to reach the 90 centimetres stope cut.

Each of these components has their own statistical parameters and was modelled individually using the procedure and parameters discussed in Section 17.2.13 below.

 

  17.2.13  Merensky Reef Modelling

Summary:

 

   

Two dimensional (2D) geological resource models were created.

 

   

Surface topography was modelled as a digital terrain model (DTM).

 

   

The geological resource model covered the Paschaskraal and Klipfontein farm area.

 

   

The Merensky Reef top reef contact DTM was generated.

 

   

Weathering/oxidation perimeters were determined using a 40 metres isopach contour (Merensky Reef DTM to Topography DTM adjusted by 40 metres).

 

   

Dip corrected borehole composites were determined from validated, regressed intersections.

 

   

Ordinary kriging was used for estimating grade, thickness, prills, base metals and density.

 

   

The parent block size used was 500 metres*500 metres with subcell splitting on the outcrop and geodomain boundaries to improve the contact definition.

 

   

The hangingwall dilution PGE grade, prills, base metals and density was modeled using parent cell estimation.

 

   

The Merensky Reef PGE, platinum, palladium, rhodium, gold, copper and nickel grade, thickness and specific gravity were modelled.

 

   

The Footwall 30 and 45 centimetres PGE grade, thickness, prills, base metals and density was modeled.

 

   

A Resource cut (MINCUT), PGE grade (PGE-S), was determined based on mine requirements of the mineable resource cut.

 

   

A prill and base metal grades, platinum prill (PT-S), palladium prill (PD-S), rhodium prill (RH-S), gold prill (AU-S), copper prill (CU-S) and nickel prill (NI-S) was determined on requirements of the resource cut.

 

   

A prill split percentage, PT percent, PD percent, RH percent and AU percent was determined for the resource cut.

 

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A length weighted density (SG-S) was determined for the Resource cut width.

 

   

Tonnage calculation was based upon:

 

   

Kriged density

 

   

Dip correction factor

 

   

Geological loss factor

 

   

Calculated resource cut.

Procedure:

Data Validation:

 

   

The validated, checked Sable borehole database files imported into Datamine.

 

   

Validation macros run in Datamine, errors checked and edits performed in Sable (for the boreholes) before re-importation (multiple procedure).

 

   

Validation and editing of the Merensky Reef lithology.

 

   

All “reef” stratigraphy was colour coded.

 

   

Validation macros run in Datamine, warnings checked.

 

   

Boreholes were excluded for the following reasons:

 

   

Incomplete intersections

 

   

Incomplete sample coverage

 

   

Problematic lithology/assay correlation

 

   

Pothole intersection (potential pothole intersections – abnormal lithology or abnormal parting widths.

Compositing:

 

   

The data was composited into:

 

   

Hangingwall dilution component

 

   

Merensky Reef

 

   

Footwall 30 and 45 centimetres components

Classical Statistics:

   

As referred to in above:

 

   

Hangingwall (10 centimetres) composites.

 

   

Merensky Reef composites (boreholes).

 

   

Footwall 30 and 45 centimetres composites.

Spatial Statistics:

The following grades and thicknesses were kriged:

   

Hangingwall composites

 

   

Merensky Reef composites

 

   

Footwall 30 and 45 centimetres composites

Estimation:

 

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Hangingwall 10 centimetres dilution PGE, platinum, palladium, rhodium, gold, copper and nickel grade and specific gravity

 

   

Merensky Reef PGE, platinum, palladium, rhodium, gold, copper and nickel grade, density and thickness

 

   

Footwall 30 and 45 centimetres PGE, platinum, palladium, rhodium, gold, copper and nickel grade and density (specific gravity)

Resource cut determination:

Combined grade, prill, base metals, thickness, density were calculated for the stope width (minimum 90 centimetres) to report:

 

   

PGE-S – PGE grade

 

   

WID-S – thickness (hanging wall + Merensky Reef + footwall)

 

   

SG-S – density

 

   

CMGT-S – for the Resource cut

 

   

PT-S – platinum prill grade for the Resource cut

 

   

PD-S – palladium prill grade for the Resource cut

 

   

RH-S – rhodium prill grade for the Resource cut

 

   

AU-S – gold prill grade for the Resource cut

 

   

CU-S – copper percentage for the Resource cut

 

   

NI-S – nickel percentage for the Resource cut

 

   

PT percent – platinum percentage for the Resource cut

 

   

PD percent – palladium percentage for the Resource cut

 

   

RH percent – rhodium percentage for the Resource cut

 

   

AU percent – gold percentage for the Resource cut.

Modelling Parameters:

A kriging neighbourhood study was undertaken on the Ga-Phasha project Merensky Reef borehole dataset. Two areas were investigated, a poor and a better informed data area.

Figure 17.11 shows examples of better informed area and poor data area, denoted by red model cells.

 

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LOGO

Figure 17.11: Spatial distribution of boreholes, showing well and poorly informed areas

 

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Figure 17.12 shows that within the better informed area the kriging efficiency is greater than 0.7 and the kriging variance is less than 0.2 when the block size exceed 200 metres. However, the curves achieve stability at a block size of ~500 metres.

LOGO

Figure 17.12: Better informed area.

Figure 17.13 shows that within a poorly informed area the kriging efficiency and kriging variance only begin to stabilize at a block size of greater than ~500 metres.

LOGO

Figure 17.13: Poorly informed area.

 

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The graphs suggest that appropriate Datamine cell dimensions for the current data spread is 500 metres*500 metres.

LOGO

Figure 17.14: Sample Search

Figure 17.14 indicates that the improvement is the grade estimate stabilizers at a min of 10 samples.

The minimum and the maximum number of samples required within the search ellipse for kriging are identical for all variables relating to the Merensky Reef (PGE grade, prills, base metals, thickness and density), except for THK-MR and NI-MR. The maximum number of samples was reduced to 15 for the THK-MR and NI-MR. This was done to reduce the effect of negative kriging weights.

Table 17.7 reports the search volume and the number of samples needed for grade estimation for the various elements. The description column, DESC, identifies the element and unit i.e. PGE-MR (Merensky Reef 4PGE grade), WID-MR (thickness), CU- MR (copper), NI- MR (nickel), DEN- MR (density), PT- MR (platinum), PD- MR (palladium), RH- MR (rhodium) and AU- MR (gold). The Hangingwall and Footwall Pegmatoid components are labeled with a *-HW or *-15 respectively.

The search parameter distance for each individual component is listed in the SDIST1 and SDIST2 columns. The dimensions used are the same as the maximum variogram range per element. Generally, a minimum of 7 and maximum of 20 samples was used in the estimation.

 

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Table 17.7: Search parameter summary (File: SPAR06)

 

SREF

  

DESC

   SDIST      SDIST      SDIST      MIN      MAX      SVOL      MIN      MAX      SVOL      MIN      MAX  

NUM

        1      2      3      1      1      FAC2      2      2      FAC3      3      3  

1

   PGE-MR      625.5         625.5         625.5         7         20         1.5         7         30         10         5         50   

2

   THK-MR      2088         2088         2088         7         15         1.5         7         30         10         5         50   

3

   PT-MR      789.5         789.5         789.5         7         20         1.5         7         30         10         5         50   

4

   PD-MR      571         571         571         7         20         1.5         7         30         10         5         50   

5

   RH-MR      780.5         780.5         780.5         7         20         1.5         7         30         10         5         50   

6

   AU-MR      1143         1143         1143         7         20         1.5         7         30         10         5         50   

7

   CU-MR      1093         1093         1093         7         20         1.5         7         30         10         5         50   

8

   NI-MR      1169         1169         1169         7         15         1.5         7         30         10         5         50   

9

   SG-MR      551.5         551.5         551.5         7         20         1.5         7         30         10         5         50   

10

   CMGT-MR      1135         1135         1135         7         20         1.5         7         30         10         5         50   

31

   PGE-30      481         481         481         7         20         1.5         7         30         10         5         50   

32

   PT-30      625.5         625.5         625.5         7         20         1.5         7         30         10         5         50   

33

   PD-30      422.5         422.5         422.5         7         20         1.5         7         30         10         5         50   

34

   RH-30      391.5         391.5         391.5         7         20         1.5         7         30         10         5         50   

35

   AU-30      731         731         731         7         20         1.5         7         30         10         5         50   

36

   CU-30      881         881         881         7         20         1.5         7         30         10         5         50   

37

   NI-30      900.5         900.5         900.5         7         20         1.5         7         30         10         5         50   

38

   SG-30      480         480         480         7         20         1.5         7         30         10         5         50   

451

   PGE-45      550         550         550         7         20         1.5         7         30         10         5         50   

452

   PT-45      465         465         465         7         20         1.5         7         30         10         5         50   

453

   PD-45      625         625         625         7         20         1.5         7         30         10         5         50   

454

   RH-45      300         300         300         7         20         1.5         7         30         10         5         50   

455

   AU-45      731         731         731         7         20         1.5         7         30         10         5         50   

456

   CU-45      815         815         815         7         20         1.5         7         30         10         5         50   

457

   NI-45      745         745         745         7         20         1.5         7         30         10         5         50   

458

   SG-45      475         475         475         7         20         1.5         7         30         10         5         50   

100

   HW PGE      820         820         820         7         30         1.5         7         30         50         10         50   

101

   HW PT      820         820         820         7         30         1.5         7         30         50         10         50   

102

   HW PD      820         820         820         7         30         1.5         7         30         50         10         50   

103

   HW RH      820         820         820         7         30         1.5         7         30         50         10         50   

104

   HW AU      820         820         820         7         30         1.5         7         30         50         10         50   

105

   HW CU      820         820         820         7         30         1.5         7         30         50         10         50   

106

   HW NI      820         820         820         7         30         1.5         7         30         50         10         50   

107

   HW SG      820         820         820         7         30         1.5         7         30         50         10         50   

 

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The variogram model parameter file in which each record defines a variogram model type and its parameters is shown in Table 17.8.

Table 17.8: Variogram model parameter summary (File: VARPAR06).

 

VREF

  

DESC

   NUGGET      ST1      ST1      ST1      ST1      ST2      ST2      ST2      ST2      ST3      ST3      ST3      ST3  

NUM

               PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4  

1

   PGE-MR      0.65         317         317         317         0.01         625.5         625.5         625.5         0.34         —           —           —           —     

2

   THK-MR      0.14         385         385         385         0.47         846         846         846         0.17         2088         2088         2088         0.22   

3

   PT-MR      0.7         460         460         460         0.15         789.5         789.5         789.5         0.15               

4

   PD-MR      0.46         361.5         361.5         361.5         0.29         571         571         571         0.25               

5

   RH-MR      0.74         780.5         780.5         780.5         0.26         —           —           —           —                 

6

   AU-MR      0.65         1143         1143         1143         0.35         —           —           —           —                 

7

   CU-MR      0.47         513.5         513.5         513.5         0.12         1093         1093         1093         0.41               

8

   NI-MR      0.39         741.5         741.5         741.5         0.23         1169         1169         1169         0.38               

9

   SG-MR      0.19         328         328         328         0.55         551.5         551.5         551.5         0.26               

10

   CMGT-MR      0.57         831.48         831.48         831.48         0.06         1135.0         1135.0         1135.0         0.37               

31

   PGE-30      0.69         481         481         481         0.31         —           —           —           —                 

32

   PT-30      0.75         625.5         625.5         625.5         0.25         —           —           —           —                 

33

   PD-30      0.66         422.5         422.5         422.5         0.34         —           —           —           —                 

34

   RH-30      0.9         391.5         391.5         391.5         0.1         —           —           —           —                 

35

   AU-30      0.58         731         731         731         0.42         —           —           —           —                 

36

   CU-30      0.47         881         881         881         0.53         —           —           —           —                 

37

   NI-30      0.52         900.5         900.5         900.5         0.48         —           —           —           —                 

38

   SG-30      0.19         480         480         480         0.81         —           —           —           —                 

451

   PGE-45      0.64         550         550         550         0.36         —           —           —           —                 

452

   PT-45      0.69         465         465         465         0.31         —           —           —           —                 

453

   PD-45      0.57         625         625         625         0.43         —           —           —           —                 

454

   RH-45      0.82         300         300         300         0.18         —           —           —           —                 

455

   AU-45      0.58         731         731         731         0.42         —           —           —           —                 

456

   CU-45      0.47         815         815         815         0.53         —           —           —           —                 

457

   NI-45      0.52         745         745         745         0.48         —           —           —           —                 

458

   SG-45      0.16         475         475         475         0.84         —           —           —           —                 

100

   HW PGE      0.31         430         430         430         0.42         735         735         735         0.27               

101

   HW PT      0.3         420         420         420         0.35         820         820         820         0.35               

102

   HW PD      0.36         412         412         412         0.45         584         584         584         0.19               

103

   HW RH      0.35         434         434         434         0.34         574         574         574         0.31               

104

   HW AU      0.56         449         449         449         0.21         660         660         660         0.23               

105

   HW CU      0.65         419         419         419         0.04         714         714         714         0.31               

106

   HW NI      0.7         540         540         540         0.3         —           —           —           —                 

107

   HW SG      0.38         340         340         340         0.62         —           —           —           —                 

 

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The estimation parameter file (see Table 17.9) describes an estimation method and its associated parameters, the fields are dependent on the estimation method selected. The most important components within the estimation parameter file are the VREFNUM (variogram reference number) and the IMETHOD (estimation method). Ordinary kriging is the method of estimation used (IMETHOD=3).

The VALUE_OUT field defines the field name that is used in the output model for the estimated element concerned.

Table 17.9: Estimation parameter summary (File: EPAR06)

 

   

VALUE_IN

  

VALUE_OU

  

SVOL_F

  

VAR_F

   SREFNUM      IMETHOD      POWER      VREFNUM  
PGE    PGE-MR    SV-PGE    KV-PGE      1         3            1   
TRUETHK    WID-MR    SV-WID    KV-WID      2         3            2   
PT    PT-MR    SV-PT    KV-PT      3         3            3   
PD    PD-MR    SV-PD    KV-PD      4         3            4   
RH    RH-MR    SV-RH    KV-RH      5         3            5   
AU    AU-MR    SV-AU    KV-AU      6         3            6   
CU    CU-MR       KV-CU      7         3            7   
NI    NI-MR       KV-NI      8         3            8   
SG    SG-MR       KV-SG      9         3            9   
PGEMGT    PGMGT-MR    SV-PGMGT    KV-PGMGT      10         3            10   
PGE    PGE-30    SV-PGE30    KV-PGE30      31         3            31   
PT    PT-30    SV-PT30    KV-PT30      32         3            32   
PD    PD-30    SV-PD30    KV-PD30      33         3            33   
RH    RH-30    SV-RH30    KV-RH30      34         3            34   
AU    AU-30    SV-AU30    KV-AU30      35         3            35   
CU    CU-30    SV-CU30    KV-CU30      36         3            36   
NI    NI-30    SV-NI30    KV-NI30      37         3            37   
SG    SG-30    SV-SG30    KV-SG30      38         3            38   
PGE    PGE-45    SV-PGE45    KV-PGE45      451         3            451   
PT    PT-45    SV-PT45    KV-PT45      452         3            452   
PD    PD-45    SV-PD45    KV-PD45      453         3            453   
RH    RH-45    SV-RH45    KV-RH45      454         3            454   
AU    AU-45    SV-AU45    KV-AU45      455         3            455   
CU    CU-45    SV-CU45    KV-CU45      456         3            456   
NI    NI-45    SV-NI45    KV-NI45      457         3            457   
SG    SG-45    SV-SG45    KV-SG45      458         3            458   
PGE    PGE-HW    HPGEVOL    KPGE-HW      100         3            100   
PT    PT-HW    HPTVOL    KPT-HW      101         3            101   
PD    PD-HW    HPDVOL    KPD-HW      102         3            102   
RH    RH-HW       KRH-HW      103         3            103   
AU    AU-HW       KAU-HW      104         3            104   
CU    CU-HW       KCU-HW      105         3            105   
NI    NI-HW       KNI-HW      106         3         2         106   
SG    SG-HW       KSG-HW      107         3         2         107   

 

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Model Validation

The data input file (model or data) was segmented into 500 metre wide corridors, from west to east. The mean grade/thickness for each section is determined and recorded against the section line.

The following comparisons were conducted:

 

   

Bore hole data distribution versus resource classification in the measured and indicated categories

 

   

Merensky Reef thickness – 500 metre west-east corridors

 

   

Merensky Reef PGE grade – 500 metre west-east corridors

 

   

Merensky Reef PT grade – 500 metre west-east corridors

 

   

Merensky Reef PD grade – 500 metre west-east corridors

 

17.2.14  Merensky Reef Resource Estimate

The mineral resources were categorized according to the South African Code for Reporting Mineral Resources and Mineral Reserves (the “SAMREC Code”) March 2000 guidelines by Anglo Platinum’s in-house qualified person for the project, Gordon Chunnett, Pr.Sci.Nat. In his opinion, the definitions and standards of the SAMREC Code are substantively similar to the definitions and standards of the Canadian Institute of Mining, Metallurgy and Petroleum (the “CIM Standards”) which are recognized by the Canadian regulatory authorities and NI 43-101; and a reconciliation of the resources between the SAMREC Code and the CIM Standards does not provide a materially different result.

The following tables summarizes the results of the resource estimates:

 

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Table 17.10: Merensky Reef

Resource Cut Mineral Resources1, 4 over a minimum width of 0.90 metres

Paschaskraal and Klipfontein Farms

 

Horizon

  

Category

   Width
(metres)
     Tonnes
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE  Ounces5
(millions)
 
REGOLITH    Measured      1.44         0.83         4.05         2.44         1.25         0.14         0.23         0.11   
   Indicated      1.52         4.15         4.16         2.52         1.23         0.13         0.28         0.55   
   Measured + Indicated      1.51         4.98         4.14         2.51         1.23         0.13         0.27         0.66   
REMNANT    Measured      1.48         7.54         4.35         2.63         1.33         0.15         0.24         1.05   
   Indicated      1.38         44.05         4.70         2.94         1.30         0.17         0.28         6.65   
   Measured + Indicated      1.40         51.59         4.65         2.89         1.30         0.17         0.27         7.71   
   Inferred      1.28         57.51         4.40         2.67         1.30         0.16         0.28         8.14   
Total Measured + Indicated      1.43         56.57         4.61         2.86         1.29         0.17         0.27         8.37   
                                                                          
Total Inferred      1.28         57.51         4.40         2.67         1.30         0.16         0.28         8.14   
                                                                          

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold;

3

Grades for individual elements are estimated from prill assays to tally 4PGM.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% is currently attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%.

 

17.2.15  Resource Classification

The resource classification is based on the following criteria:

 

   

Borehole distribution

 

   

Kriging efficiency

 

   

Kriging variance

 

   

Search volume parameters

 

   

Model verses data validation

 

   

Geological framework

 

   

Aeromagnetic survey information

 

   

Seismic information (if applicable)

 

   

Mining history (if applicable)

 

   

Risk assessment

 

   

Competent person assessment/over-write

 

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The figure below shows the final Merensky Reef resource classification plot.

LOGO

Figure 17.15: Final Merensky Reef resource classification

 

17.2.16  Resource Estimate and Classification Avoca and De Kamp Farms

The resources for Avoca and de Kamp were assigned the same grade, resource cut width and density as the up dip inferred resources on the Klipfontein and Pashaskraal farms. The tonnage calculated was determined from the total area of the individual farms concerned (Avoca 21.21 million m2 and De Kamp 18.33 million m2) and the dip correction (16 degrees) applied was as per the up dip farms. Grades, widths and specific gravity values are derived from the up dip resources for Paschaskraal (for DeKamp) and Klipfontein (for Avoca). Geological losses applied are 32%. The inferred mineral resources are:

Table 17.11 Merensky Reef

Resource Cut Mineral Resources1,4 Avoca and DeKamp Farms

 

Category

   Width
(metres)
     Tonnes
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE5  Ounces

(millions)
 
Total Inferred      1.30         122.50         4.48         2.71         1.33         0.16         0.28         17.64   

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold

3

Grades for individual elements are estimated from prill assays tally 4PGE.

 

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4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% is currently attributable to Anooraq.

5

Metallurgical Recoveries azre assumed to be 100%

 

17.2.17  Grade cut-off

Minefill completed an analysis of the estimate using a grade cut-off and a 0.90 metre width. Based on their analysis, the resources in Tables 17.11 and 17.12 are equivalent to a 2.6 g/t 4PGE cut-off, using metal prices of US$778/oz for platinum, US$288/oz for paladium, US$1374/oz for rhodium and US$400/oz for gold and an ZAR:US$ exchange rate of 8.16.

17.3  UG2 Resource Estimate

17.3.1  Data sources

17.3.1.1  Boreholes

At the time of the estimate, the database available contains 619 UG2 intersections either as single boreholes or boreholes containing up to six deflections, of which 583 occur within the Ga-Phasha property.

Certain boreholes were drilled for metallurgical purposes and therefore only contain UG2, hangingwall and footwall stratigraphic information.

17.3.1.2  Database summary

The following table summarises the validated borehole database information used for the compilation of the June 2006 UG2 resource model. The database included boreholes from the neighboring properties, a total of 19 reef intersections from Lebowa and 17 reef intersections from Twickenham Mines.

Table 17.12 UG2 Borehole database summary

 

BOREHOLE DATABASE    TOTAL  

Number of “parent” boreholes :

     322   

Number of Motherhole+deflections:

     899   

BOREHOLE UG2 REEF INTERSECTIONS

  

Number of UG2 “parent” boreholes

     230   

Number of UG2 Motherhole+deflections

     619   

Number of UG2 Motherhole+deflections PGE ASSAY acceptable

     449   

Number of UG2 intersections (includes deflections) – PRILL (unregressed)

     428   

Number of UG2 intersections (includes deflections) – PRILL (regressed data)

     21   

Number of UG2 intersections (includes deflections) - DENSITY

     401   

Number of UG2 intersections (includes deflections) - Copper

     443   

Number of UG2 intersections (includes deflections) - Nickel

     443   

 

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17.3.1.3  PGE correction factor

No correction factors have been applied to the early Ga-Phasha boreholes. Exploration holes drilled since 2001 have been assayed at ARC/AARL using the silver prill method which is correction free.

17.3.1.4  Effective date

The final date of data for the UG2 modelling exercise was May 2006.

17.3.1.5  Data Distribution

UG2 Location Plots

The figure below shows the spatial distribution of validated boreholes used for the generation of the UG2 resource model. Orange circles denote all new data points sourced from ongoing exploration since the generation of the December 2004 resource model. Black circles denote all historical data, data from the neighboring farms that were included in the resource evaluation. The UG2 outcrop (purple), Merensky outcrop (orange) and the farm boundaries (grey).

Figure 17.16 Spatial distribution of boreholes

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The figure below shows the 40 metres weathering/oxidation depth perimeter in BLUE. The PURPLE and ORANGE lines show the UG2 and Merensky Reef subcrops, respectively.

Figure 17.17 Weathering/oxidation perimeter

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UG2 Location of validated boreholes with prill data

The figure below shows the spatial distribution of the boreholes with validated assay information. Those boreholes containing prill split information have been used to create regression curves for platinum, palladium, rhodium and gold; which have been used to regress the prill splits for the 20 boreholes that only reported 4PGE values. Figure 17.18 shows those boreholes that only reported 4PGE values.

Figure 17.18 Spatial distribution of boreholes with prill information

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The following figure illustrates those boreholes which will have regressed individual prill element values determined.

Figure 17.19 Spatial distribution of boreholes without assayed prill information

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UG2 Location of validated boreholes with Copper/Nickel data

The figure below shows the spatial distribution of the boreholes containing copper/nickel assay information.

Figure 17.20 Spatial distribution of boreholes with copper/nickel assay information

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UG2 Location of validated boreholes with density data

Figure 17.21 shows the spatial distribution of the boreholes containing density information.

Figure 17.21 Spatial distribution of boreholes with density information.

LOGO

17.3.2  Data Validation

17.3.2.1  UG2 Database

The borehole database summary is included in Appendix 1.

The Sable borehole database was validated as follows:

 

   

Validation in Sable to check for overlaps/gaps within individual boreholes/deflections.

 

   

Validation in Sable to cross-check PGE assay verses individual element assays (prill).

 

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Validation in Datamine/Excel for lithological and assay alignment checking and correlations.

 

   

An iterative validation-editing cycle was followed to ensure that all corrections were incorporated into the Sable database. Thereafter the Sable data was re-imported and re-validated in Datamine. This editing and re-importation might be necessary a number of times as certain errors might or could have been masked by other errors.

 

   

Additional fields were added, namely: NSTRAT, SSTRAT, GEOTEC and STATUS. These fields are used for re-interpretation purposes and to ensure that the final borehole file contained identical fields for audit and/or other Datamine processes.

 

   

The original “STRAT” coding from the Sable databases is maintained.

 

   

All the Excel files generated are “colour” coded using the NSTRAT/SSTRAT/ GEOTEC field to highlight different lithologies.

The STATUS field is used to identify if a borehole can be used as follows:

 

   

UG2 Reef Structure and Grade acceptable: STATUS=500

 

   

UG2 Reef Structural/thickness only: STATUS=510

STATUS codes used at Ga-Phasha are:

 

   

100 -Merensky Reef (in progress)

 

   

500 -UG2 Reef

 

   

511 -Potholed UG2 Reef (PUG2)

 

   

9 -Slumped reef intersections

 

   

Spatial validations were performed in Datamine to ensure that the boreholes plotted within the project area and within the UG2 outcrop. The creation of a UG2 digital terrain model (DTM) enabled anomalous elevations to be identified.

 

   

Only those boreholes with an inclination of between 60 and 90 degrees were used in the geological model grade and thickness estimation processes.

17.3.3  UG2 Compositing

The final validated Datamine de-surveyed file was used for the generation of the necessary UG2 Reef composite file.

Compositing criterion was:

 

   

Composite over the complete “NSTRAT” or “SSTRAT” unit.

 

   

Minimum composites reported were 0.01 metres.

 

   

Since assay gaps within the NSTRAT/SSTRAT units did not exist (part of the validation procedure) the use of default grades did not apply.

 

   

Only those boreholes with an inclination of between 60 and 90 degrees were used in the geological model grade and thickness estimation processes.

 

   

The compositing was density and length weighted and corrected for drilling angle and strike/dip to give true thicknesses.

 

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Individual element (Prill) compositing was performed on all the boreholes after regression techniques were applied to determine absent prill values).

The new data’s composited file (ug2f2006) was merged with the previous composite file (ug2f2005) to create ug2006. Composited borehole files from the neighboring farms were merged to create ug2006.2

17.3.4  UG2 Geological Losses

17.3.4.1  UG2 Potholes

Where local changes in strike and dip occur, it is likely that the changes are induced by potholes or rolls, forming depressions or wave-like structures, respectively in the main chromitite.

Potholes are more disruptive to the layering than rolls. Within a pothole, the UG2 Reef might be poorly developed (less than 30 centimetres in thickness) or it might only be represented by the sporadic development of chromitite stringers or blebs of chromitite. The base of the pothole is normally several metres below the expected elevation with the depth to width ratio up to 1:2.

No regular distribution has been determined for these potholes. UG2 and Merensky potholes occur independently of one another. However, in places potholing of the Merensky Reef may significantly affect the underlying UG2 Reef zone.

Within the Ga-Phasha Driekop Sable database, the stratigraphy codes do not always identify those boreholes intersecting the UG2 that are affected by potholing. The size, shape, depth and regularity of these potholes are highly variable. Although there is limited information available, UG2 potholes in the Lebowa area are known to be of the destructive type, where the reef is highly irregular, disrupted and un-mineable. There is not enough information available at Ga-Phasha at present to draw any conclusions.

Potholes have been described as thermo-chemical erosional structural features mainly caused by defluidisation and degassing of magmas as well as convection and movement of restfluids in magmas. In general they vary in shape from circular to elliptical. The nature of, or lack of hangingwall and/or footwall succession are often indicators of potential pothole scenarios. The steepening in dip of the hangingwall chromitite stringers or UG2 Reef might also indicate potential pothole features. Undulations and thinning of the UG2 Reef do not always indicate potholes but be indicative of natural processes. Occasionally potholes are associated with crosscutting irregularly shaped replacement pegmatite rocks.

The current exploration drilling program is important for providing possible pothole information relatively close to the planned mining footprint so that mine planning can be optimised.

 

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Figure 17.22 below illustrates the spatial distribution of Ga-Phasha boreholes that have been classified as intersecting potential UG2 “potholes” in red.

Figure 17.22: UG2 boreholes that intersected potholes

LOGO

In summary, a pattern to the spatial distribution of UG2 potholes has not been determined although they are frequently concentrated in clusters. A better understanding of the morphology and geometry of potholes is vital to ensure the best exploitation of the UG2 resource is achieved. It is important that as much pothole information is recorded so that this information can be utilised to anticipate or provide guidelines as to how to cope with them.

Potential tools for pothole identification:

 

   

Increased UG3 to UG2 interburden thickness.

 

   

Significant dip changes.

 

   

Abnormal UG2 Reef thickness.

 

   

Abnormal chromitite and internal pyroxenite thicknesses within the UG2.

 

   

Shearing/brecciation and disruption in or immediately surrounding the UG2.

 

   

UG3 identified but no UG2 developed.

 

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Decrease in middling to the UG1.

 

   

Presence of abnormal lithologies above or below the UG2.

17.3.4.2  Influence of Faults and Dykes

See section 17.2.5 above.

17.3.4.3  UG2 Estimation of Geological Losses

A detailed Geological Loss Report for the Ga-Phasha project has been compiled by Langwieder (December 2004). Geological losses are related to the presence of potholes, faults, dykes and replacement pegmatite. Table 17.13 summarises the geological losses that have been applied to the resource estimations.

Table 17.13 UG2 Geological loss summary

 

FARM

   Potholes
%
     Faults
%
     Dykes
%
     Replacement
pegmatite

%
     TOTAL
GEOLOGICAL LOSS
%
 

Paschaskraal

     8         6         6         2         22   

Klipfontein

     13         6         3         5         27   

Footprint area

     8         2         3         2         15   

17.3.5  UG2 Geozone Definitions

Geological domains (geozones) were reviewed; however, no well defined domains were evident during this modeling exercise. Clearly defined variations in grade, thickness and density for the UG2 need to be monitored carefully as the information database increases. The present data distribution indicates gradual rather than dramatic changes in grades and thickness.

17.3.5.1  UG2 Classic Statistics

(graphs are provided in the Appendices for the June 27 2007 report on UG2 which is filed at www.sedar.com)

Hangingwall geotech histograms

The Hangingwall geotech histograms are restricted to the borehole information of the composited “geotech” within the Ga-Phasha lease area. Data from the neighboring farms have been excluded from the statistical and geostatistical analysis. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis, and exclude boreholes that were cut from the analysis.

 

  1) Borehole PGE values show a distribution with 132 data points ranging in value from 0.02 to 8.24 grams per tonne with a mean of 2.49 grams per tonne.

 

  2) Borehole thickness (Perpleng) values show a distribution with 169 data points ranging in value from 0.0048 to 0.4194 metre with a mean of 0.15 metre.

 

  3)

Borehole platinum (Pt) prill values show a distribution with 132 data points ranging in value from 0.0013 to 4.035 grams per tonne with a mean of 1.04

 

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grams per tonne.

 

  4) Borehole palladium (Pd) prill values show a distribution with 132 data points ranging in value from 0.0056 to 3.88 grams per tonne with a mean of 1.19 grams per tonne.

 

  5) Borehole rhodium (Rh) prill values show a distribution with 132 data points ranging in value from 0.0069 to 0.700 grams per tonne with a mean of 0.19 grams per tonne.

 

  6) Borehole gold (Au) prill values show a distribution with 132 data points ranging in value from 0.0060 to 0.395 grams per tonne with a mean of 0.07 grams per tonne.

 

  7) Borehole copper (Cu) values show a distribution with 131 data points ranging in value from 0.0010 to 0.1200 percent with a mean of 0.025 percent.

 

  8) Borehole nickel (Ni) values show a distribution with 131 data points ranging in value from 0.02 to 0.1834 percent with a mean of 0.097 percent.

 

  9) Borehole density values show a distribution with 112 data points ranging in value from 3.26 to 4.42 with a mean of 3.64.

UG2 Reef Histograms

The UG2 Reef histograms are based on the borehole information of the composited reef, within the Ga-Phasha lease area. Reef intersections from the neighboring farms, a total of 29 intersections have been excluded from the statistical and geostatistical analysis. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. The validated borehole grade, thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in available in the detailed resource study report. The analysis shows:

 

  1) Borehole PGE values show a normal distribution with 420 data points ranging in value from 4.68 to 17.47 grams per tonne with a mean of 8.46 grams per tonne.

 

  2) Borehole thickness (Perpleng) values show a distribution with 577 data points ranging in value from 0.26 to 0.89 metre with a mean of 0.59 metre.

 

  3) Borehole platinum (Pt) prill values show a normal distribution with 420 data points ranging in value from 1.85 to 8.24 grams per tonne with a mean of 3.58 grams per tonne.

 

  4) Borehole palladium (Pd) prill values show a normal distribution with 420 data points ranging in value from 1.60 to 7.95 grams per tonne with a mean of 4.07 grams per tonne.

 

  5) Borehole rhodium (Rh) prill values show a distribution with 420 data points ranging in value from 0.10 to 1.11 grams per tonne with a mean of 0.66 grams per tonne.

 

  6) Borehole gold (Au) prill values show a normal distribution with 420 data points ranging in value from 0.01 to 0.33 grams per tonne with a mean of 0.14 grams per tonne.

 

  7) Borehole copper (Cu) values show a normal distribution with 415 data points ranging in value from 0.0028 to 0.1144 percent with a mean of 0.046 percent.

 

  8)

Borehole nickel (Ni) values show a distribution with 415 data points ranging in

 

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value from 0.0288 to 0.2731 percent with a mean of 0.165 percent.

 

  9) Borehole density values show a normal distribution with 353 data points ranging in value from 3.71 to 4.70 with a mean of 4.29.

Footwall histograms The histograms are based on the borehole information of the composited reef for the 15, 30 and 45 centimetres footwall component.

Grade versus thickness scatterplots

The relationship between the PGE grade and UG2 Reef channel width was investigated on grade versus thickness scatterplots to determine whether it was necessary to krige the PGE accumulation.

17.3.6  UG2 Cutting Strategy

A cutting strategy procedure was followed to exclude those boreholes that contained abnormal values. The initial database validation procedure would have already identified a number of boreholes and/or underground sample sections with abnormal grade values or thicknesses, therefore all validated intersections were used in the estimations. After reviewing the UG2 Reef histograms and cumulative frequency plots, cuts were applied to improve the variography.

 

   

No borehole PGE grade intersection was cut or capped for Geotech, UG2 Reef or Footwall composites.

 

   

Boreholes with thicknesses of less than 0.25 metre and greater than 0.90 metre were considered for exclusion from the modelling. It was interpreted that these intersections represent pothole edges and/or rolls and therefore abnormal. Those intersections, interpreted as pothole edge and/or rolls were excluded from the grade estimations as well

 

   

No prill values were cut.

 

   

No borehole density intersection was excluded from the modelling. Only the more recent exploration boreholes have had density determined on a regular basis.

17.3.7  UG2 Variography

(graphs are provided in the Appendices for the June 27 2007 report on UG2 which is filed at www.sedar.com)

The Snowden “Supervisor” software was used for the semivariogram analysis. Variograms were generated on the composited cut data files. Since the distributions were normal, variograms were modelled using the untransformed data for motherholes and deflections. The previous database was replaced with the updated database in “Supervisor” in order to compare the previous variography with the updated dataset. In general, the additional data points served to confirm the existing variogram models, and in some cases, only minor adjustments to the variogram parameters were made.

Since the software allows the lag distance to be dynamically varied, the determination of the nugget and spatial variance for the different structures was performed at appropriate lags. Anisotropy was apparent in some variance contours but it was felt that this was due to the data distribution. The adoption of an isotropic model would enable the data to impart the required orientation rather than forcing an anisotropy onto the estimation.

 

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17.3.8  UG2 Geotechnical Considerations

If chromitite bands/stringers are present in the hangingwall and close to the top of the UG2 Reef, they were included within the hangingwall dilution component. The Rock Mechanic determination was that a 20 centimetres solid “rock” beam above the UG2 Reef, without any chromitite bands/stringers, could be supported. Where individual stringers occur within 20 centimetres of the UG2 and within 20 centimetres of one another, significant hangingwall dilution is likely. Figure 17.23 illustrates the hangingwall dilution considerations.

Figure 17.23 (below) illustrates the following (as per the numbers):

 

  1) chromitite stringer greater than 20 centimetres above the UG2 Reef, no hangingwall dilution applicable, “geotech = 0”

 

  2) only one chromitite stringer less than 20 centimetres above the UG2 Reef, hangingwall dilution: “geotech = thickness to the chromitite stringer”

 

  3) multiple chromitite stringers however the second chromitite stringer is greater than 20 centimetres above the first therefore the hangingwall dilution: “geotech = as 2 above”

 

  4) the first and second chromitite stringers are within 20 centimetres of each other therefore the hangingwall dilution: “geotech = thickness between the top of the UG2 Reef and the second chromitite stringer”

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The overlying alternating stringers and pyroxenitic partings which make up the unavoidable hangingwall dilution or “GEOTECH” group, define the geotechnical component on this resource. These stringers and, to a lesser extent, the partings can contain significant PGE grades. They lie immediately above the UG2 Reef band. The “geotech” thickness and grade are modelled separately to the UG2 Reef and later combined with the UG2 model to yield the resource cut that is potentially mineable.

17.3.9  Mining Considerations

At Ga-Phasha the UG2 Resource cut is made up of three components namely:

 

  1) upper portion – hangingwall dilution (Geotech)

 

  2) main portion – UG2 Reef

 

  3) lower portion – footwall pegmatoidal pyroxenite

A Resource cut grade and width has been calculated, using length and density weighting of the individual components, to generate a variable width in-situ resource for a targeted mining width of 90 centimetres.

17.3.10  UG2 Modelling

The “UG2 Resource cut” at Ga-Phasha consists of a basal UG2 Reef band overlain by a number of chromitite stringers separated by feldspathic pyroxenite layers, of varying thickness. The chromitite stringers form planes of parting weakness and, where occurring in close proximity to the top of the UG2, contribute to poor hangingwall conditions, unavoidable dilution and safety hazards. The total thickness of the “UG2 zone” ranges between ~0.65 and 1.00 metre. The UG2 is underlain by a pegmatoidal feldspathic pyroxenite of between 25 and 275 centimetres in thickness.

The UG2 Resource cut is made up of three components, as indicated in section 17.14. The lower portion, 15 centimetres or 30 centimetres or 45 centimetres are utilised to make up the required minimum mining height after the Geotech and UG2 Reef thicknesses have been considered. Each of these components was modelled.

The modelling philosophy followed was that for a borehole/deflection the validation STATUS fields had to be “500” or “510” for the UG2 Reef (see Data Validation). This meant that there was an acceptable lithological sequence (UG2 Reef) thickness and grade profile. The other constraint was that holes drilled at angles less than 60 degrees were not included in the estimation process due to concerns related to the dip correction/orientation factor.

17.3.10.1  UG2 Modelling Summary

 

   

Two dimensional (2D) geological resource models were created.

 

   

Surface topography was modelled as a digital terrain model (DTM).

 

   

The geological resource model covered the Paschaskraal and Klipfontein farm area.

 

   

The UG2 top reef contact DTM was generated.

 

   

The UG3 top reef contact DTM was generated.

 

   

Weathering/oxidation perimeters were determined using a 40 metres isopach

 

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contour (UG2 DTM to Topography DTM adjusted by 40 metres).

 

   

Ordinary kriging was used for estimating grade, thickness, prills, base metals and density.

 

   

The parent block size used was 500 metres by 500 metres with subcell splitting to 250 metre by 250 metre blocks in the well informed areas.

 

   

The hangingwall (Geotech) dilution PGE grade, thickness, prills, base metals and density was modelled.

 

   

The UG2 Reef PGE, platinum, palladium, rhodium, gold, copper and nickel grade, thickness and density were modelled.

 

   

The Footwall 15, 30 and 45 centimetres PGE grade, thickness, prills, base metals and density was modelled.

 

   

A Resource cut (MINCUT), PGE grade (PGECUT), and cmgt (CMGT) was determined based on mine requirements for a 90 centimetres cut.

 

   

A prill and base metal grade cut, PTCUT, PDCUT, RHCUT, AUCUT, CUCUT and NICUT was determined for the 90 centimetres stope width.

 

   

A prill split percentage, PT percent, PD percent, RH percent and AU percent was determined for the 90 centimetres stope width.

 

   

A length weighted density (MINSG) was determined for the Resource cut width.

 

   

Tonnage calculation was based on:

 

   

Kriged density

 

   

Dip correction

 

   

Geological loss factor

 

   

Kriged reef thickness (UG2 Reef), hangingwall (Geotech) and footwall (pegmatoid) dilution.

17.3.10.2  UG2 Procedure

The following procedure was used for modelling:

Data Validation:

 

   

The validated, checked Sable borehole database files imported into Datamine.

 

   

Validation macros run in Datamine, errors checked and edits performed in Sable (for the boreholes) before re-importation (multiple procedure).

 

   

Validation and editing of the UG2 lithology.

 

   

All “reef” stratigraphy was colour coded.

 

   

Validation macros run in Datamine, errors checked.

 

   

Boreholes were excluded for the following reasons:

 

   

Incomplete intersections

 

   

Incomplete sample coverage

 

   

Problematic lithology/assay correlation

 

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Pothole intersection (potential pothole intersections – UG2 Reef thicknesses less than 30 centimetres or greater than 90 centimetres).

Compositing:

The data was composited into:

 

   

Hangingwall dilution component (Geotech)

 

   

UG2 Reef

 

   

Footwall 15, 30 and 45 centimetres components

Classical Statistics:

 

   

Hangingwall (Geotech) composites.

 

   

UG2 Reef composites (boreholes).

 

   

Footwall 15, 30 and 45 centimetres composites.

Spatial Statistics:

The following grades and thicknesses were kriged:

 

   

Hangingwall Geotech composites

 

   

UG2 Reef composites

 

   

Footwall 15, 30 and 45 centimetres composites

Estimation:

 

   

Hangingwall Geotech dilution PGE, platinum, palladium, rhodium, gol, copper and nickel grade, density and thickness

 

   

UG2 Reef PGE, platinum, palladium, rhodium, gol, copper and nickel grade, density and thickness

 

   

Footwall 15, 30 and 45 centimetres PGE, platinum, palladium, rhodium, gol, copper and nickel grade and density

 

   

Combined grade, prill, base metals, thickness, density were calculated for the 90 centimetres stope width to report:

 

   

PGECUT – PGE grade

 

   

MINCUT – thickness (Geotech + UG2 Reef + footwall)

 

   

MINSG – density

 

   

CMGT – for the Resource cut

 

   

PTCUT – platinum prill grade for the Resource cut

 

   

PDCUT – palladium prill grade for the Resource cut

 

   

RHCUT – rhodium prill grade for the Resource cut

 

   

AUCUT – gold prill grade for the Resource cut

 

   

CUCUT – copper percentage for the Resource cut

 

   

NICUT – nickel percentage for the Resource cut

 

   

PT percent – platinum percentage for the Resource cut

 

   

PD percent – palladium percentage for the Resource cut

 

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RH percent – rhodium percentage for the Resource cut

 

   

AU percent – gold percentage for the Resource cut.

17.3.10.3  UG2 Parameters

A kriging neighbourhood study was undertaken on the Ga-Phasha project UG2 borehole dataset. Two areas were investigated, a poor and a well informed data area. Figure 17.24 shows examples of well informed area, proposed mining footprint and poor data area; towards the western limit of exploration drilling.

 

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Figure 17.24 Spatial distribution of boreholes

LOGO

Figure 17.25 shows that within the well informed area the kriging efficiency is greater than 0.6 and the kriging variance is less than 0.2 irrespective of the chosen block size. However, all curves achieve stability at a block size of approximately 500 metres. In the well informed areas a cell dimension of 250 metres was used in order to highlight local resource variations.

The graphs indicate that the 250 metre cell size does not degrade the kriging optimization significantly.

 

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Figure 17.25 Well informed area

LOGO

Figure 17.26 shows that within a poorly informed area the kriging efficiency and kriging variance only begin to stabilize at a block size of greater than approximately 600 metres.

Figure 17.26 Poorly informed area

LOGO

The graphs suggest that appropriate Datamine cell dimensions for the current data spread is approximately 250 metres by 250 metres within the well informed areas and approximately 500 metres by 500 metres or larger in the poorly informed areas.

 

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Figure 17.27 Search distance.

LOGO

Figure 17.27 indicates that varying the search ellipse does not have a significant impact in reducing kriging variance/increasing kriging efficiency.

Figure 17.28 illustrates that stability is achieved when a minimum of 10 samples is required within the search ellipse. Figure 17.29 shows that choosing a minimum number of samples of greater than 10 will result in a much smoother kriged estimate.

Figure 17.28 Sample minimums

LOGO

 

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Figure 17.29 PGE Grade

LOGO

The minimum and the maximum number of samples required within the search ellipse for kriging are identical for all variables relating to the UG2 Reef (PGE grade, prills, base metals, thickness and density).

Tables 17.14a and b reports the search volume and the number of samples needed for grade estimation for the various elements. The description column, DESC, identifies the element and unit i.e. PGE-U (UG2 Reef 4PGE grade), WID-U (thickness), CU-U (copper), NI-U (nickel), DEN-U (density), PT-U (platinum), PD-U (palladium), RH-U (rhodium) and AU-U (gold). The Hangingwall Geotech and Footwall Pegmatoid components are labeled with a *-GT or *-15 respectively.

The search parametre distance for each individual component is listed in the SDIST1 and SDIST2 columns. The dimensions used are the same as the maximum variogram range per element. Generally, a minimum of 10 and maximum of 30 samples was used in the estimation. The maximum number of samples used for the estimation of UG2 Reef width was reduced to 15. This was done to limit the effects of negative kriging weights being assigned to samples.

 

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Table 17.14a Search parameter summary (File: SPAR06)

 

SREF

   DESC    SDIST      SDIST      SDIST      MIN      MAX      SVOL      MIN      MAX      SVOL      MIN      MAX  

NUM

        1      2      3      1      1      FAC2      2      2      FAC3      3      3  
1    PGE-U      545         545         545         10         30         1.5         10         30         50         30         40   
2    WID-U      3550         3550         3550         10         15         1.5         10         30         50         30         40   
3    PT-U      1720         1720         1720         10         30         1.5         10         30         50         30         40   
4    PD-U      525         525         525         10         30         1.5         10         30         50         30         40   
5    RH-U      1950         1950         1950         10         30         1.5         10         30         50         30         40   
6    AU-U      1445         1445         1445         10         30         1.5         10         30         50         30         40   
7    CU-U      2485         2485         2485         10         30         1.5         10         30         50         30         40   
8    NI-U      1155         1155         1155         10         30         1.5         10         30         50         30         40   
9    DEN-U      860         860         860         10         30         1.5         10         30         50         30         40   
10    PGE-GT      1885         1885         1885         10         30         1.5         10         30         50         30         40   
11    WID-GT      3370         3370         3370         10         30         1.5         10         30         50         30         40   
12    PT-GT      1300         1300         1300         10         30         1.5         10         30         50         30         40   
13    PD-GT      1580         1580         1580         10         30         1.5         10         30         50         30         40   
14    RH-GT      1125         1125         1125         10         30         1.5         10         30         50         30         40   
15    AU-GT      940         940         940         10         30         1.5         10         30         50         30         40   
16    CU-GT      1155         1155         1155         10         30         1.5         10         30         50         30         40   
17    NI-GT      1585         1585         1585         10         30         1.5         10         30         50         30         40   
18    DEN-GT      970         970         970         10         30         1.5         10         30         50         30         40   

Table 17.14b Search parameter summary (File: SPAR06)

 

SREF

   DESC    SDIST      SDIST      SDIST      MIN      MAX      SVOL      MIN      MAX      SVOL      MIN      MAX  

NUM

        1      2      3      1      1      FAC2      2      2      FAC3      3      3  
19    PGE-15      3050         3050         3050         10         30         1.5         10         30         50         30         40   
20    PT-15      3115         3115         3115         10         30         1.5         10         30         50         30         40   
21    PD-15      3050         3050         3050         10         30         1.5         10         30         50         30         40   
22    RH-15      3185         3185         3185         10         30         1.5         10         30         50         30         40   
23    AU-15      3220         3220         3220         10         30         1.5         10         30         50         30         40   
24    CU-15      3990         3990         3990         10         30         1.5         10         30         50         30         40   
25    NI-15      3945         3945         3945         10         30         1.5         10         30         50         30         40   
26    DEN-15      2025         2025         2025         10         30         1.5         10         30         50         30         40   
27    PGE-30      3205         3205         3205         10         30         1.5         10         30         50         30         40   
28    PT-30      2635         2635         2635         10         30         1.5         10         30         50         30         40   
29    PD-30      3025         3025         3025         10         30         1.5         10         30         50         30         40   
30    RH-30      3275         3275         3275         10         30         1.5         10         30         50         30         40   
31    AU-30      3210         3210         3210         10         30         1.5         10         30         50         30         40   
32    CU-30      4510         4510         4510         10         30         1.5         10         30         50         30         40   
33    NI-30      3165         3165         3165         10         30         1.5         10         30         50         30         40   
34    DEN-30      2015         2015         2015         10         30         1.5         10         30         50         30         40   

 

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Table 17.14b Search parameter summary (File: SPAR06)

 

SREF

   DESC    SDIST      SDIST      SDIST      MIN      MAX      SVOL      MIN      MAX      SVOL      MIN      MAX  

NUM

        1      2      3      1      1      FAC2      2      2      FAC3      3      3  
35    PGE-45      3220         3220         3220         10         30         1.5         10         30         50         30         40   
36    PT-45      3795         3795         3795         10         30         1.5         10         30         50         30         40   
37    PD-45      3235         3235         3235         10         30         1.5         10         30         50         30         40   
38    RH-45      2040         2040         2040         10         30         1.5         10         30         50         30         40   
39    AU-45      3915         3915         3915         10         30         1.5         10         30         50         30         40   
40    CU-45      4225         4225         4225         10         30         1.5         10         30         50         30         40   
41    NI-45      2440         2440         2440         10         30         1.5         10         30         50         30         40   
42    DEN-45      1990         1990         1990         10         30         1.5         10         30         50         30         40   

The variogram model parameter file in which each record defines a variogram model type and its parameters is shown in Table 17.15a and b.

Table 17.15a Variogram model parameter summary (File: VARPAR06)

 

VREF

   DESC    NUGGET      ST1      ST1      ST1      ST1      ST2      ST2      ST2      ST2      ST3      ST3      ST3      ST3  

NUM

               PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4  
1    PGE-U      0.6         545         545         545         0.402         —           —           —           —           —           —           —           —     
2    WID-U      0.216         525         525         525         0.45         3550         3550         3550         0.334         —           —           —           —     
3    PT-U      0.6         485         485         485         0.257         1720         1720         1720         0.143         —           —           —           —     
4    PD-U      0.64         240         240         240         0.257         525         525         525         0.103         —           —           —           —     
5    RH-U      0.38         770         770         770         0.343         1950         1950         1950         0.277         —           —           —           —     
6    AU-U      0.6         510         510         510         0.196         1445         1445         1445         0.204         —           —           —           —     
7    CU-U      0.237         575         575         575         0.477         2485         2485         2485         0.286         —           —           —           —     
8    NI-U      0.171         510         510         510         0.588         1155         1155         1155         0.241         —           —           —           —     
9    DEN-U      0.087         555         555         555         0.447         860         860         860         0.466         —           —           —           —     
10    PGE-GT      0.53         155         155         155         0.055         1185         1185         1185         0.115         1885         1885         1885         0.3   
12    WID-GT      0.367         190         190         190         0.149         3370         3370         3370         0.484         —           —           —           —     
13    PT- GT      0.334         930         930         930         0.395         1300         1300         1300         0.271         —           —           —           —     
14    PD- GT      0.37         1000         1000         1000         0.252         1580         1580         1580         0.378         —           —           —           —     
15    RH- GT      0.366         440         440         440         0.082         1125         1125         1125         0.552         —           —           —           —     
16    AU- GT      0.41         940         940         940         0.59         —           —           —           —           —           —           —           —     
17    CU- GT      0.25         665         665         665         0.447         1155         1155         1155         0.303         —           —           —           —     
18    NI-GT      0.26         520         520         520         0.189         1585         1585         1585         0.551         —           —           —           —     

 

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Table 17.15b Variogram model parameter summary (File: VARPAR06)

 

VREF

   DESC    NUGGET      ST1      ST1      ST1      ST1      ST2      ST2      ST2      ST2      ST3      ST3      ST3      ST3  

NUM

               PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4      PAR1      PAR2      PAR3      PAR4  
19    PGE-15      0.45         105         105         105         0.161         725         725         725         0.155         3050         3050         3050         0.234   
20    PT-15      0.43         125         125         125         0.151         620         620         620         0.24         3115         3115         3115         0.179   
21    PD- 15      0.41         90         90         90         0.235         560         560         560         0.199         3050         3050         3050         0.156   
22    RH- 15      0.479         335         335         335         0.238         800         800         800         0.143         3185         3185         3185         0.14   
23    AU- 15      0.55         120         120         120         0.09         390         390         390         0.125         3220         3220         3220         0.235   
24    CU- 15      0.307         375         375         375         0.337         3990         3990         3990         0.356         —           —           —           —     
25    NI-15      0.21         80         80         80         0.098         595         595         595         0.357         3945         3945         3945         0.335   
26    DEN-15      0.13         680         680         680         0.484         2025         2025         2025         0.386         —           —           —           —     
27    PGE-30      0.563         680         680         680         0.188         3205         3205         3205         0.249         —           —           —           —     
28    PT-30      0.609         545         545         545         0.132         2635         2635         2635         0.259         —           —           —           —     
29    PD- 30      0.554         640         640         640         0.232         3025         3025         3025         0.214         —           —           —           —     
30    RH- 30      0.43         120         120         120         0.273         1175         1175         1175         0.226         3275         3275         3275         0.071   
31    AU- 30      0.635         260         260         260         0.072         1485         1485         1485         0.134         3210         3210         3210         0.159   
32    CU- 30      0.387         100         100         100         0.09         695         695         695         0.14         4510         4510         4510         0.383   
33    NI-30      0.155         215         215         215         0.216         940         940         940         0.209         3165         3165         3165         0.42   
34    DEN-30      0.178         475         475         475         0.2         785         785         785         0.414         2015         2015         2015         0.208   
35    PGE-
45
     0.54         105         105         105         0.047         570         570         570         0.23         3220         3220         3220         0.183   
36    PT-45      0.426         95         95         95         0.192         535         535         535         0.225         3795         3795         3795         0.157   
37    PD- 45      0.572         455         455         455         0.202         3235         3235         3235         0.226         —           —           —           —     
38    RH- 45      0.551         400         400         400         0.234         1250         1250         1250         0.128         2040         2040         2040         0.087   
39    AU- 45      0.523         285         285         285         0.103         740         740         740         0.12         3915         3915         3915         0.254   
40    CU- 45      0.381         100         100         100         0.139         630         630         630         0.204         4225         4225         4225         0.276   
41    NI-45      0.149         310         310         310         0.205         745         745         745         0.196         2440         2440         2440         0.45   
42    DEN-45      0.161         520         520         520         0.431         1990         1990         1990         0.408         —           —           —           —     

The estimation parameter file (see Table 17.16a and b) describes an estimation method and its associated parameters, the fields are dependent on the estimation method selected. The most important components within the estimation parameter file are the VREFNUM (variogram reference number) and the IMETHOD (estimation method). Ordinary kriging is the method of estimation used (IMETHOD=3) for the GEOTECH (except for GEOTECH WIDTH, where Inverse power of distance squared was used) and the UG2 Reef and UG2 Footwall components.

The VALUE_OUT field defines the field name that is used in the output model for the estimated element concerned.

 

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Table 17.16a Estimation parameter summary (File: EPAR06)

 

VALUE_IN

   VALUE_OU    SVOL_F    VAR_F    SREFNUM      IMETHOD      POWER      VREFNUM  

PGE

   PGE-U    SPGE-U    KPGE-U      1         3         2         1   

PERPLENG

   WID-U    SWID-U    KWID-U      2         3         2         2   

PT

   PT-U    SPT-U    KPT-U      3         3         2         3   

PD

   PD-U    SPD-U    KPD-U      4         3         2         4   

RH

   RH-U    SRH-U    KRH-U      5         3         2         5   

AU

   AU-U    SAU-U    KAU-U      6         3         2         6   

CU

   CU-U    SCU-U    KCU-U      7         3         2         7   

NI

   NI-U    SNI-U    KNI-U      8         3         2         8   

SG

   DEN-U    SSG-U    KSG-U      9         3         2         9   

PGE

   PGE-GT    SPGE-GT    KPGE-GT      10         3         2         10   

PERPLENG

   WID-GT    SWID-GT    KWID-GT      11         2         2         11   

PT

   PT-GT    SPT-GT    KPT-GT      12         3         2         12   

PD

   PD-GT    SPD-GT    KPD-GT      13         3         2         13   

RH

   RH-GT    SRH-GT    KRH-GT      14         3         2         14   

AU

   AU-GT    SAU-GT    KAU-GT      15         3         2         15   

CU

   CU-GT    SCU-GT    KCU-GT      16         3         2         16   

NI

   NI-GT    SNI-GT    KNI-GT      17         3         2         17   

SG

   DEN-GT    SDEN-GT    KDEN-GT      18         3         2         18   

Table 17.16b Estimation parameter summary (File: EPAR06)

 

VALUE_IN

   VALUE_OU    SVOL_F    VAR_F    SREFNUM      IMETHOD      POWER      VREFNUM  

PGE

   PGE-15    SPGE-15    KPGE-15      19         3         2         19   

PT

   PT-15    SPT-15    KPT-15      20         3         2         20   

PD

   PD-15    SPD-15    KPD-15      21         3         2         21   

RH

   RH-15    SRH-15    KRH-15      22         3         2         22   

AU

   AU-15    SAU-15    KAU-15      23         3         2         23   

CU

   CU-15    SCU-15    KCU-15      24         3         2         24   

NI

   NI-15    SNI-15    KNI-15      25         3         2         25   

SG

   DEN-15    SDEN-15    KDEN-15      26         3         2         26   

PGE

   PGE-30    SPGE-30    KPGE-30      27         3         2         27   

PT

   PT-30    SPT-30    KPT-30      28         3         2         28   

PD

   PD-30    SPD-30    KPD-30      29         3         2         29   

RH

   RH-30    SRH-30    KRH-30      30         3         2         30   

AU

   AU-30    SAU-30    KAU-30      31         3         2         31   

CU

   CU-30    SCU-30    KCU-30      32         3         2         32   

NI

   NI-30    SNI-30    KNI-30      33         3         2         33   

SG

   DEN-30    SDEN-30    KDEN-30      34         3         2         34   

PGE

   PGE-45    SPGE-45    KPGE-45      35         3         2         35   

PT

   PT-45    SPT-45    KPT-45      36         3         2         36   

PD

   PD-45    SPD-45    KPD-45      37         3         2         37   

RH

   RH-45    SRH-45    KRH-45      38         3         2         38   

AU

   AU-45    SAU-45    KAU-45      39         3         2         39   

CU

   CU-45    SCU-45    KCU-45      40         3         2         40   

NI

   NI-45    SNI-45    KNI-45      41         3         2         41   

SG

   DEN-45    SDEN-45    KDEN-45      42         3         2         42   

 

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17.3.10.4  UG2 Model Validation

The relationship between the model estimations and borehole grades (PGE, platinum, palladium, rhodium, gold, copper, nickel and density) and thicknesses were investigated for the UG2 Reef units.

The following comparisons were conducted:

 

   

UG2 Reef thickness – west to east

 

   

UG2 Reef PGE grade – west to east

 

   

UG2 Reef PT grade – west to east

 

   

UG2 Reef PD grade – west to east

 

   

UG2 Reef RH grade – west to east

 

   

UG2 Reef AU grade – west to east

 

   

UG2 Reef CU percentage – west to east

 

   

UG2 Reef NI percentage – west to east

 

   

UG2 Reef Density – west to east

 

   

UG2 Reef thickness – south to north

 

   

UG2 Reef PGE grade – south to north

 

   

UG2 Reef PT grade – south to north

The comparison between the borehole database composited components and the kriged block model is good. This comparison has identified some areas where additional borehole information will further enhance the robustness of the resource model.

17.3.11  UG2 Resource Estimation

Table 17.17 summarizes the results of the resource estimation for the shallow portion of the UG2 deposit on the Klipfontein and Paschaskraal farms:

 

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Table 17.17 UG2 Reef

Resource Cut Mineral Resources1,4 over a minimum width of 0.90 metres

Paschaskraal and Klipfontein Farms

 

Horizon

   Category    WIDTH
(metres)
     TONNAGE
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE5  ounces
(millions )
 

REGOLITH

   Measured      0.90         0.97         6.33         2.74         2.99         0.49         0.11         0.20   
   Indicated      0.92         1.43         6.45         2.74         3.08         0.52         0.12         0.30   
   Inferred      0.92         1.13         6.28         2.68         2.99         0.50         0.11         0.23   

MINING

   Measured      0.90         7.17         6.74         2.80         3.28         0.55         0.12         1.55   

FOOTPRINT

   Indicated      0.90         0.07         7.04         2.91         3.41         0.60         0.13         0.02   
   Measured      0.91         16.71         6.40         2.71         3.05         0.54         0.11         3.44   

REMNANT

   Indicated      0.91         55.95         6.56         2.77         3.14         0.53         0.11         11.79   
   Inferred      0.95         67.36         6.47         2.72         3.09         0.54         0.11         14.02   
                                                                          

TOTAL MEASURED+INDICATED

     0.91         82.30         6.53         2.76         3.13         0.53         0.11         17.30   
                                                                          

TOTAL INFERRED

     0.95         68.49         6.47         2.72         3.09         0.54         0.11         14.25   
                                                                          

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold

3

Grades for individual elements are estimated from prill assays tally 4PGE.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% is currently attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%

17.3.12  UG2 Resource Classification

The resource classification is based on the following criteria:

 

   

Borehole distribution

 

   

Kriging efficiency

 

   

Kriging variance

 

   

Search volume parameters

 

   

Model verses data validation

 

   

Conditional Simulation

 

   

Geological framework

 

   

Aeromagnetic survey information

 

   

Seismic information (if applicable)

 

   

Mining history (if applicable)

 

   

Risk assessment

 

   

Analysis/interpretation by the qualified person

 

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The figure below shows the final UG2 resource classification based on this study:

Figure 17.30 Final UG2 resource classification.

LOGO

17.3.13  Resource Estimate and Classification Avoca and De Kamp Farms

The resources for Avoca and de Kamp were assigned the same grade, resource cut width and density as the up dip inferred resources on the Klipfontein and Pashaskraal farms. The tonnage calculated was determined from the total area of the individual farms concerned (Avoca 21.21 million m2 and De Kamp 18.33 million m2) and the dip correction (16 degrees) applied was as per the up dip farms. Grades, widths and specific gravity values are derived from the up dip resources for Paschaskraal (for DeKamp) and Klipfontein (for Avoca). Geological losses applied for Avoca is 24% and for DeKamp is 27%. The inferred mineral resources are:

 

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Table 17.18 UG2 Reef

Resource Cut Mineral Resources1,4 over a minimum width of 0.90 metres

Avoca and De Kamp Farms

 

Category

   Width
(metres)
     Tonnes
(millions)
     4PGE2
(g/t)
     Pt3
(g/t)
     Pd3
(g/t)
     Rh3
(g/t)
     Au3
(g/t)
     Contained
4PGE
Ounces5
(millions)
 

Inferred

     0.96         118.11         6.49         2.73         3.11         0.54         0.12         24.63   

 

1

A mineral resource is an inventory of mineralization that, under realistically assumed and justifiable technical and economic conditions, might become economically viable. A mineral resource that is not a mineral reserve does not have demonstrated economic viability.

2

4PGE = platinum + palladium + rhodium + gold

3

Grades for individual elements are estimated from prill assays to tally 4PGE.

4

The resource estimate represents 100% of the Ga-Phasha resource of which 50% is currently attributable to Anooraq.

5

Metallurgical recoveries are assumed to be 100%.

17.3.14  Grade cut-off

Minefill completed an analysis of the estimate using a grade cut-off and a 0.90 metre width. Based on their analysis, the resources in Tables 17.17 and 17.18 are equivalent to a 1.76 g/t 4PGE cut-off, using metal prices of US$778/oz for platinum, US$288/oz for paladium, US$1374/oz for rhodium and US$400/oz for gold and an ZAR:US$ exchange rate of 8.16.

 

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18 OTHER RELEVANT DATA AND INFORMATION

The authors are not aware of other technical information relevant to this report.

 

19 INTERPRETATION AND CONCLUSIONS

 

19.1 Merensky Reef Resource Estimation

A geological resource model has been generated using the latest borehole (as of May 2006), assay and structural information available. This model consists of 10 centimetres hangingwall, reef and footwall slice estimates to enable any number of resource cut scenarios (variable stope widths) to be assessed.

The resource classification is based on sound geostatistical principles and conforms to the SAMREC guidelines. Future resource models can be further enhanced as exploration drilling continues on both the closely spaced and regional drilling grids.

Digital terrain models (DTMs) were created as part of the validation process to ensure no erroneous spatial data was used and that any unusual elevation data was investigated. The DTM was also used to interpret mega slump and potholes features.

A number of areas for further attention have been identified and are listed below.

 

   

An average depth of weathering plus oxidation of 40m has been estimated. See previous report. This will need to be verified if open cast mining operations are considered.

 

   

Geological loss determinations need to be continually reviewed as new information becomes available.

 

   

An average geological loss of 27 percent has been applied within the resource area, this factor is substantiated by findings at the neighbouring Lebowa Mine.

 

   

A Fire assay correction factor has not been applied to the pre-2001 boreholes (resulting in slightly conservative prill assay contributions from these holes).

 

   

Borehole logs do not always identify pothole intersections.

 

   

Inconsistent geological logging between “mother’ hole and deflections, especially in the old boreholes.

 

   

Mineralisation in the immediate footwall of the Merensky Reef needs to be better understood.

 

   

Regressed estimates for rhodium for assays where the PGE+Au (4PGE) grade is less than 1.5 grams per tonne. A concern was raised regarding the use of regressed Rh values. A study was conducted on the UG2 Reef and this proved that by not using regressed values, there is a risk of over estimating the Rh grades.

Drilling to mid 2006 at Merensky Reef has increased the measured, indicated and inferred resources on the Klipfontein and Paschaskraal farms of the Ga-Phasha Project. At a minimum 0.9 metre resource cut-off and after geological losses are applied, the total measured, indicated and inferred resources for the Merensky Reef for the Paschaskraal and Klipfontien farms are summarized in Tables 17.10 and the inferred mineral resources for the Avoca and De Kamp farms are summarized in Table 17.11.

 

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19.2  UG2 Resource Estimation

The geological resource model has been generated using the latest borehole, assay and structural information available. This model consists of geotechnical, reef and footwall information to enable a variety of Resource cut scenarios (variable stope widths) to be assessed.

Digital terrain models (DTMs) were created as part of the validation process to ensure no erroneous spatial data was used and that any unusual elevation data was investigated.

However, exploration drilling, mapping and evaluation of the UG2 and Merensky Reef horizons should continue. As the project progresses it is vital that the borehole and structural information (faults and dykes especially) are recorded and updated on a continual basis.

In addition, a number of areas for attention have been identified:

 

   

An average depth of weathering plus oxidation of 40 metres has been assumed.

 

   

Geological loss determinations need to be continually reviewed as new information becomes available.

 

   

An average geological loss of 15 percent has been applied within the proposed mining footprint area, although this factor is substantiated by findings at the neighbouring Lebowa Mine.

 

   

Geotechnical information is based on geological boreholes and geotechnically logged boreholes; more historical boreholes might need to be re-visited and geotechnically logged in the areas of scarce information.

 

   

A Fire assay correction factor has not been applied to the pre-2001 boreholes (resulting in conservative contributions from these holes).

 

   

Borehole logs do not always identify pothole intersections.

The resource classification is based on sound geostatistical principles and conforms to the SAMREC and CIM guidelines.

Drilling to mid 2006 at UG2 has increased the measured, indicated and inferred resources on the Klipfontein and Paschaskraal farms of the Ga-Phasha Project. At a 0.9 metre resource cut-off and after geological losses are applied, the UG2 measured, indicated and inferred resources for the Paschaskraal and Klipfontein farms are summarized in Table 17.17. These resources were also described in a June 2007 Technical Report. The inferred mineral resources for Avoca and DeKamp are summaried in Table 17.18 of this report.

 

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20 RECOMMENDATIONS

 

20.1 Merensky Reef

As a result of the above mentioned areas of concern the following recommendations are made:

 

   

Review the logging of boreholes close to outcrop for weathering/oxidation in the pyroxenites. This may necessitate additional boreholes.

 

   

Review the determination of the geological loss as additional information becomes available.

 

   

“Mother” holes and deflections need to be logged in conjunction with eachother and with the neighbouring holes. This will aid in identifying any discrepancies or potential pothole regions.

 

   

All current exploration samples are assayed through ARC/AARL and in future, the Robotic Laboratory, so the assay correction will be negated.

 

   

Geotechnical logging must be conducted as a matter of course on all new exploration boreholes. Geotechnical logging of all appropriate historical boreholes should be conducted. This will enable these attributes (eg RQD) to be included into the resource model.

 

   

A regional exploration drilling grid is in place, however dynamic reviews need to be undertaken periodically. This is relevant in delineating the limits of the “mega slump” on the Klipfontein property.

 

   

Borehole logging and sampling validation procedures need to be finalised and implemented.

 

   

The footwall mineralisation within the first 5m of the Merensky Reef needs to be better studied an understood. This may provide localised opportunities during mining.

 

20.2  UG2

As a result of the above mentioned areas of concern the following recommendations are made:

 

   

Review the determination of the geological loss as additional information becomes available.

 

   

Structural mapping and geotechnical information needs to be captured and incorporated in future resource models.

 

   

Structural interpretation plans/strings need to be generated in CAD/Datamine by the geological staff so that potential areas of bad ground or predicted structural features can be given hazard ratings.

 

   

All current exploration samples are assayed through ARC/AARL and in future, the Robotic Laboratory.

 

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Logging procedures need to ensure that the correct stratigraphic coding standards are applied.

 

   

Geotechnical logging must be conducted as a matter of course on all new exploration boreholes. Geotechnical logging of all appropriate historical boreholes should be conducted.

 

   

A regional exploration drilling grid is in place, however dynamic reviews need to be undertaken periodically.

 

   

Borehole logging and sampling validation procedures need to be finalised and implemented.

 

   

The geotechnical support beam should be continually reviewed in the light of the application of the “smart” roof bolting exercise at Modikwa Platinum Mine.

 

   

The depth of weathering/oxidation needs to be determined more precisely due to the impact on the resources discounted and the threat of water influx if breached.

 

   

Conduct research on UG2 recoveries, limited work has been conducted on the Paschaskraal farm.

The current focus of work is a pre-feasibility study on UG2, which is currently underway.

However, exploration drilling, mapping and evaluation of the UG2 and Merensky Reef horizons should continue. As the project progresses, it is vital that the borehole and structural information (faults and dykes especially) are recorded and updated on a continual basis.

 

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21 REFERENCES

Viljoen, M.J. and Schürmann, L.W. (1998). Platinum-Group Metals, in The Mineral Resources of South Africa, Handbook 16, Council for Geoscience, pp. 532 – 568.

Schürmann, L.W., Grabe, P.J. and Steenkamp, C.J. (1998). Chromium, in The Mineral Resources of South Africa, Handbook 16, Council for Geoscience, pp. 90 – 105.

Viljoen, L. and Button, M. (October 2005). Ga-Phasha Platinum Mine Conceptual Life of Mine Study. Internal Anglo Platinum report, including Appendices A to G, inclusive.

Amplats Management Services (Pty) Ltd. (1999, May) The Platenoid Mineralogy and Metallurgy of the UG2 Reef on the farm Paschaskraal (Eastern Bushveld), with Specific Reference to Boreholes PK47 and PK49. Confidential Research Report.

G.A. Fourie (2002, Oct): Paschaskraal Joint Venture Platinum Mine Pre-Feasibility Study. Internal Report by G.A. Fourie and Associates – Mining Consultants for Anglo Platinum.

Khulani GeoEnviro Consultants (Pty) Ltd. (2003, Oct). Ga-Phasha Platinum Project Resource Evaluation.

Khulani GeoEnviro Consultants (Pty) Ltd. (2004, Feb). Addendum Report - Pelawan (Pty) Ltd and Anglo Platinum Ltd – Agreement on Mineral Resource Figures for the Ga-Phasha (Paschaskraal) Platinum Project.

Langwieder, G. (2004, Feb). Project Geological Report. Paschaskraal - Klipfontein Project. Draft Version 4. Internal Anglo Platinum Report.

Nowak, D. (February 2006). Northeast Limb Project Merensky Reef and UG2 Reef Resources – Ga Phasha Project (final). Internal Anglo Platinum report.

Stone, D.M.R, Godden, S., and Chunnett, G. (2007, June) Technical Report on the Updated Resource Estimate for UG2 Reef Deposit, Eastern Limb Bushveld Complex, Limpopo Province of the Republic of South Africa.

Subramani, Desmond (November 2006). Ga - Phasha – UG2 Geological Resource Modelling june 2006. Caracle Creek International Consulting Report for Anglo Platinum.

Subramani, Desmond (September 2007). Ga - Phasha – Merensky Reef Geological Resource Modelling May 2006. Caracle Creek International Consulting Report for Anglo Platinum.

 

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22 DATE AND SIGNATURE

This report is dated October 19, 2007.

 

Signed and Sealed
David M.R. Stone, P.Eng.
Signed and Sealed
Gordon Chunnett, Pr.Sci.Nat.

 

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23 CERTIFICATES

 

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David Stone, P.Eng.

I, David M.R. Stone, P.Eng., do hereby certify that:

 

  1. I am currently employed as a Mining Consultant and President of Minefill Services, Inc., PO Box 725, Bothell, Washington, USA 98041.

 

  2. I graduated from the University of British Columbia with a Bachelors of Applied Science in Geological Engineering in 1980. In addition I have a Ph.D. in Civil Engineering from Queen’s University (1985) and an MBA from Queen’s University (2002).

 

  3. I am a licensed Professional Engineer (P.Eng.) in British Columbia (Reg # 15025) as well as numerous other Canadian and US jurisdictions.

 

  4. I have worked as a consulting mining engineer for the past 25 years, since graduation from university.

 

  5. I have read the definition of “qualified person” set out in National Instrument 43- 101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined by NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101.

 

  6. I am co-author of this technical report. I am responsible for compiling all sections other than those related to the sampling, resource estimate and conclusions and recommendation related to the resource estimate in this technical report entitled “Technical Report on the Updated Resource Estimates for the Merensky Reef and UG2 Deposits, Ga-Phasha PGM Project, Eastern Limb Bushveld Complex, Limpopo Province of the Republic of South Africa”, dated October 19, 2007 (the “Technical Report”) relating to the Ga-Phasha property.

 

  7. I have considerable experience related to the preparation of engineering and financial studies, including Preliminary Assessment reports, pre-feasibility and feasibility studies.

 

  8. I have visited the Ga-Phasha Property on numerous occasions, most recently in early 2006.

 

  9. I am independent of the issuer, Anooraq Resources Corporation, applying all of the tests in Section 1.5 of National Instrument 43-101.

 

  10. I have read National Instrument 43-101 and Form 43-101F1, and the Technical Report has been prepared in compliance with that instrument and form.

 

  11. As of the date of the certificate, to the best of my knowledge, information and belief, the technical report contains all scientific and technical information that is required to he disclosed to make the technical report not misleading.

 

  12. I consent to the filing of the Technical Report with any stock exchange and any other regulatory authority and any publication by them, including electronic publication in the public company files on their websites accessible by the public, of the Technical Report.

 

Dated this 19th day of October, 2007.
/s/ David Stone
David M.R. Stone, P.Eng

 

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Gordon Chunnett, Pr.Sci Nat.

I, Gordon Chunnett, Pr.Sci Nat., do hereby certify that:

 

1. I am Group Exploration Manager of Anglo Platinum Limited, P.O. Box 62179, Marshalltown, 2107 South Africa.

 

2. I am a graduate of Rhodes University (1978), BSc. Hons (Geology)

 

3. I am registered as a Professional Natural Scientist with the South African Council for Natural Scientific Professions (SACNASP) registration number 400002/88

 

4. I have worked as a Geologist/Geoscientist for a total of 27 years since my graduation. My relevant experience for the purpose of the Technical Report is:

 

   

1979-1981 Geologist JCI Base Metals Exploration: Murchison Range RSA

 

   

1981-1984 Field Geologist: JCI Platinum Division Exploration.

 

   

1984-1992 Assistant Chief Geologist: Rustenburg Platinum Mine

 

   

1992- 1998 JCI Exploration: Exploration Manager: Western Bushveld

 

   

1998- 2001 Amplats: Manager Exploration: Bushveld and Great Dyke Exploration.

 

   

2001 – present Anglo Platinum Exploration: overall exploration of the Bushveld and other global platinum exploration projects

 

5. I have read the definition of “qualified person” as set out in National Instrument 43-101 (“NI 43-101”) and certify that by reason of my education, affiliation with a professional association (as defined in NI 43-101) and past relevant work experience, I fulfill the requirements to be a “qualified person” for the purposes of NI 43-101.

 

6. I am a co-author of the technical report “Technical Report on the Updated Resource Estimates for the Merensky Reef and UG2 Deposits, Ga-Phasha PGM Project, Eastern Limb Bushveld Complex, Limpopo Province of the Republic of South Africa”, dated October 19, 2007. I am responsible for the sampling, resource estimates and conclusions and recommendations associated with the resource estimate in this report.

 

7. I visited the Property several times from January 1981 when I was directly involved in the initial exploration, to the present, where I have held responsibility for the more recent execution of the ongoing exploration activities leading towards feasibility estimation.

 

8. I have been involved with supervising and reviewing the mineral resource estimates of the Ga-Phasha project since 1981 and more recently since 2001 to present.

 

9. To the best of my knowledge, information and belief, my section of Technical Report contains all scientific and technical information that is required to be disclosed to make the report not misleading.

 

10. I am independent of Anooraq Resources Corporation as set out in section 1.4 of National Instrument 43-101, but not of the Ga-Phasha Project as employed by Anglo Platinum, which is the joint venture partner of Anooraq Resources Corporation on the project.

 

11. I have read National Instrument 43-101F1, and the Technical Report has been prepared in compliance with National Instrument 43-101 and Form 43-101F1.

 

12. I consent to the filing of this Technical Report with any stock exchange and other regulatory authority and any publication by them, including electronic publication in the public company files on their websites accessible by the public.

Dated this 19th day of October, 2007

 

/s/ Gordon Chunnett
Gordon Chunnett, Pr. Sci Nat.
Fellow of the GSSA
Fellow of the SAIMM

 

ANOORAQ RESOURCES CORPORATION


APPENDIX 1: BOREHOLE DATABASE SUMMARY

Merensky Reef

The following summary files relate to:

 

  1) Borehole 10cm HW component

 

  2) Borehole MR Reef channel

 

  3) Footwall 30cm FW cut component

 

  4) Footwall 45cm FW cut component

1)    BOREHOLE 10cm HW COMPONENT

 

BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

BF100D0

     -104754.89         -94894.5         0.020                  0.002         0.002         0.000         0.016   

BF112D0

     -105377.35         -94297         0.020                  0.002         0.002         0.000         0.016   

BF128D0

     -104714.77         -94151         0.020                  0.002         0.002         0.000         0.016   

BF128D1

     -104031.9         -95680         0.020         0.080         0.110            0.002         0.002         0.000         0.016   

BF128D2

     -106047.01         -93308         0.112         0.009         0.039         3.120         0.032         0.055         0.003         0.022   

BF201D0

     -105872.31         -93234.641         0.279         0.114         0.228         3.396         0.113         0.043         0.007         0.116   

BF202D0

     -103006.73         -98413.383         0.292         0.089         0.205         3.240         0.115         0.070         0.007         0.100   

BF205D0

     -107741.5         -93141         0.343         0.049         0.115         3.153         0.156         0.113         0.008         0.066   

BF206D0

     -105172.94         -95271.898         0.351         0.062         0.169         3.226         0.155         0.058         0.009         0.129   

BF276D0

     -105172.91         -95271.906         0.357         0.062         0.194         3.236         0.133         0.117         0.008         0.099   

BF279D0

     -106600.71         -93025.008         0.384         0.090         0.185         3.376         0.159         0.080         0.009         0.136   

BF287D0

     -105588.93         -94912.078         0.399         0.069         0.151            0.196         0.086         0.010         0.107   

BF29D0

     -102368.5         -98351.25         0.480                  0.246         0.108         0.014         0.112   

BF29D1

     -104368.1         -95201.016         0.496         0.042         0.086         3.216         0.263         0.067         0.014         0.151   

BF2D0

     -108010.84         -93498.797         0.185         0.024         0.124         3.400         0.060         0.070         0.005         0.050   

BF2D1

     -108087.3         -92928         0.200         0.058         0.103            0.078         0.020         0.006         0.096   

BF2D2

     -106600.41         -93024.727         0.201         0.073         0.150         3.250         0.075         0.042         0.005         0.079   

BF2D3

     -106600.62         -93024.93         0.203         0.066         0.137         3.303         0.076         0.038         0.005         0.084   

BF38D0

     -104031.9         -95679.867         0.500         0.090         0.130            0.258         0.114         0.015         0.113   

BF4D0

     -104276.4         -97856.406         0.503         0.229         0.490            0.250         0.134         0.014         0.104   

BF98D0

     -103006.59         -98413.352         0.537         0.070         0.196         3.330         0.210         0.185         0.012         0.130   

BF99D0

     -104276.4         -97856.328         0.575         0.093         0.206            0.254         0.152         0.014         0.155   

KF101D0

     -102923.79         -97690.438         0.575         0.047         0.208         3.270         0.116         0.198         0.007         0.254   

KF101D2

     -107467.66         -91992         0.600         0.160         0.230            0.319         0.145         0.017         0.119   

KF101D3

     -104276.4         -97856.5         0.605         0.071         0.160            0.362         0.120         0.019         0.104   

KF101D4

     -102497.3         -96898.5         0.620                  0.331         0.151         0.018         0.120   

KF102D0

     -103616.56         -97728.484         0.626         0.137         0.247         3.411         0.313         0.164         0.024         0.126   

KF102D3

     -104368.1         -95201.156         0.629         0.114         0.255         3.200         0.294         0.150         0.016         0.169   

KF102D4

     -102574.3         -96986         0.629                  0.364         0.186         0.018         0.062   

KF102D5

     -105871.98         -93234.523         0.660         0.087         0.208         3.389         0.296         0.201         0.015         0.147   

KF103D0

     -105871.83         -93234.453         0.680         0.100         0.241         3.407         0.285         0.219         0.015         0.160   

KF103D2

     -105172.89         -95271.922         0.740         0.083         0.228         3.255         0.336         0.212         0.016         0.177   

KF103D3

     -102593.32         -99294.547         0.757         0.120         0.197         3.300         0.347         0.185         0.018         0.207   

KF103D4

     -104763.65         -95369.531         0.786         0.135         0.292            0.396         0.137         0.021         0.232   


BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

KF105D0

     -106018.87         -93030         0.800         0.090         0.160            0.439         0.207         0.023         0.131   

KF105D1

     -104647.84         -94572.742         0.840         0.105         0.142            0.463         0.220         0.024         0.133   

KF105D2

     -108101.7         -93030.5         0.856         0.093         0.230         3.559         0.396         0.168         0.019         0.273   

KF108D0

     -105286.39         -93616.25         0.890                  0.493         0.235         0.026         0.136   

KF108D3

     -104368.1         -95201.25         0.926         0.144         0.306         3.190         0.469         0.238         0.024         0.195   

KF108D4

     -106836.68         -92704         0.960                  0.535         0.257         0.028         0.140   

KF108D5

     -105588.92         -94911.938         0.985         0.118         0.254            0.520         0.224         0.027         0.214   

KF109D0

     -104417.2         -96727.5         1.010         0.101         0.218            0.541         0.272         0.026         0.170   

KF109D4

     -102696.9         -97141.5         1.014                  0.568         0.274         0.029         0.143   

KF109D5

     -103616.63         -97728.313         1.025         0.105         0.205         3.371         0.569         0.249         0.031         0.176   

KF109D6

     -106336.13         -92737         1.030                  0.577         0.279         0.030         0.144   

KF112D0

     -105558.39         -93827.922         1.067         0.067         0.175         3.323         0.675         0.250         0.053         0.089   

KF112D4

     -102861.9         -97541.5         1.100         0.080         0.130            0.619         0.301         0.032         0.148   

KF112D5

     -102662         -98652.297         1.142         0.273         0.869            0.724         0.210         0.030         0.177   

KF112D6

     -101922.7         -99066         1.160                  0.656         0.320         0.034         0.151   

KF118D0

     -105298.4         -94924.906         1.201         0.050         0.096            0.680         0.332         0.035         0.154   

KF118D3

     -104763.73         -95369.594         1.203         0.108         0.249            0.638         0.309         0.033         0.223   

KF118D4

     -102547.99         -98414.438         1.213         0.138         0.239         3.430         0.657         0.318         0.033         0.205   

KF119D0

     -103352.7         -98624.344         1.287         0.031         0.121         3.513         0.592         0.568         0.020         0.107   

KF119D2

     -107476.21         -92387.305         1.302         0.116         0.247         3.070         0.698         0.342         0.024         0.238   

KF119D3

     -108251.3         -92859         1.343         0.034         0.106         3.506         0.920         0.318         0.047         0.057   

KF11D0

     -105298.4         -94925         1.060         0.095         0.174            0.595         0.288         0.031         0.146   

KF121D0

     -107201.68         -92665.773         1.365         0.050         0.157         3.473         0.940         0.189         0.047         0.188   

KF123D0

     -104933.53         -96011.688         1.392         0.099         0.245         3.440         0.844         0.324         0.064         0.160   

KF123D2

     -103409.7         -97181.297         1.396         0.101         0.211            0.790         0.393         0.040         0.173   

KF123D3

     -106327.87         -92383.258         1.444         0.131         0.391         3.433         0.873         0.353         0.040         0.176   

KF125D0

     -104208.45         -95464.344         1.459         0.142         0.241         3.349         0.832         0.392         0.040         0.194   

KF125D2

     -103352.7         -98624.078         1.469         0.031         0.155         3.840         0.775         0.540         0.039         0.115   

KF125D3

     -105431.56         -93468.188         1.479         0.088         0.194         3.406         0.865         0.424         0.043         0.148   

KF126D0

     -106018.87         -93030.5         1.500         0.080         0.130            0.860         0.426         0.043         0.171   

KF126D1

     -103411.46         -98019.742         1.535         0.149         0.318         3.401         0.797         0.449         0.045         0.245   

KF126D2

     -108199.04         -94373.859         1.563         0.070         0.172            0.831         0.537         0.042         0.153   

KF126D3

     -104417.2         -96727.281         1.566         0.115         0.246            0.957         0.373         0.046         0.189   

KF127D0

     -104208.73         -95464.227         1.569         0.120         0.217         3.392         0.890         0.444         0.047         0.188   

KF127D3

     -107146.06         -92365.477         1.570         0.090         0.172            0.902         0.447         0.045         0.175   

KF127D4

     -102593.35         -99294.781         1.586         0.133         0.218         3.440         0.879         0.337         0.039         0.331   

KF127D5

     -104980.27         -94720.727         1.599         0.039         0.115         3.286         0.947         0.455         0.052         0.146   

KF12D0

     -102559.67         -97725.977         1.347         0.106         0.276         3.430         0.750         0.359         0.050         0.188   

KF13D0

     -106631.44         -92371         1.608                  0.925         0.459         0.046         0.177   

KF15D0

     -105431.58         -93468.344         1.635         0.069         0.159         3.391         1.127         0.325         0.058         0.124   

KF28D0

     -104847.09         -94364.406         1.654         0.125         0.245         3.424         0.953         0.473         0.048         0.180   

KF28D1

     -104990.83         -94551.75         1.680         0.145         0.195            0.969         0.482         0.048         0.181   

KF29D0

     -104645.14         -99120.734         1.694         0.064         0.209         3.478         1.050         0.361         0.050         0.233   

KF29D1

     -104562.6         -94814.281         1.722         0.151         0.298         3.406         0.956         0.482         0.050         0.234   

KF32D0

     -106619.73         -92641.844         1.769         0.148         0.269         3.377         1.022         0.510         0.051         0.186   

KF32D4

     -102621.55         -98858.453         1.771         0.116         0.254         3.396         1.178         0.368         0.052         0.172   

KF32D5

     -103853.48         -95778.594         1.793         0.148         0.271         3.496         1.093         0.454         0.052         0.195   

KF34D0

     -105558.29         -93827.992         1.797         0.087         0.195         3.354         1.024         0.505         0.065         0.203   

KF34D4

     -107491.73         -94740.258         1.813         0.075         0.191            1.020         0.583         0.049         0.162   

KF34D5

     -104862.73         -95075.094         1.837         0.124         0.300         3.491         1.062         0.486         0.057         0.232   


BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

KF37D0

     -108329.53         -95774.891         1.890         0.091         0.191         3.388         1.226         0.456         0.060         0.147   

KF37D4

     -108198.12         -94373.469         1.923         0.105         0.232            1.163         0.559         0.075         0.126   

KF37D5

     -107470.9         -92030.203         1.925         0.133         0.244         3.462         1.046         0.591         0.052         0.236   

KF38D5

     -102355.48         -98054.281         1.937         0.142         0.367         3.430         1.028         0.640         0.048         0.221   

KF38D6

     -104980.1         -94720.719         1.974         0.109         0.250         3.422         0.978         0.547         0.052         0.397   

KF39D0

     -105760.8         -97110.438         1.983         0.117         0.268         3.390         1.294         0.415         0.068         0.206   

KF39D4

     -105588.93         -94912.156         1.989         0.078         0.203            1.141         0.542         0.032         0.274   

KF39D5

     -103715.8         -96779.758         2.008         0.128         0.252         3.436         1.069         0.657         0.052         0.230   

KF3D0

     -107681.3         -91821.297         1.744         0.140         0.302         3.418         1.027         0.452         0.051         0.214   

KF44RD0

     -104846.91         -94364.539         2.079         0.130         0.272         3.373         1.209         0.606         0.060         0.204   

KF46D0

     -106619.62         -92641.883         2.108         0.127         0.239         3.272         1.226         0.615         0.061         0.206   

KF46D1

     -104862.73         -95075.094         2.114         0.137         0.305         3.588         1.281         0.537         0.065         0.231   

KF4D0

     -105431.51         -93468.117         2.059         0.089         0.191         3.416         1.369         0.471         0.079         0.140   

KF51D0

     -106734.1         -92125.867         2.126         0.164         0.328         3.454         1.188         0.581         0.055         0.303   

KF51D1

     -104933.71         -96011.523         2.142         0.095         0.237         3.420         1.414         0.465         0.075         0.187   

KF52D0

     -102530.1         -97987.75         2.150                  1.251         0.628         0.062         0.208   

KF52D1

     -103715.7         -96779.641         2.197         0.129         0.278         3.416         1.162         0.728         0.072         0.235   

KF57D4

     -104562.57         -94814.219         2.200                  1.225         0.665         0.073         0.237   

KF57D5

     -105181.43         -94115.422         2.206         0.127         0.232         3.443         1.189         0.706         0.059         0.251   

KF5D0

     -108329.66         -95774.906         2.120         0.104         0.225         3.434         1.457         0.419         0.084         0.160   

KF60D0

     -104284.67         -95002.391         2.288         0.107         0.262         3.324         1.362         0.587         0.061         0.278   

KF60D4

     -107608.8         -91866.398         2.290               3.608         1.312         0.611         0.058         0.309   

KF60D5

     -107777.9         -92627.977         2.357         0.125         0.256         3.425         1.454         0.617         0.082         0.204   

KF63AD0

     -107469         -91827.203         2.410         0.177         0.321         3.462         1.416         0.620         0.072         0.303   

KF63BD0

     -102730.28         -98133.641         2.414         0.148         0.323         3.829         1.420         0.675         0.061         0.259   

KF63CD0

     -102548.02         -98414.516         2.416         0.176         0.302         3.456         1.444         0.602         0.069         0.301   

KF63D0

     -107201.77         -92665.883         2.426         0.094         0.244         3.490         1.547         0.516         0.124         0.239   

KF6D0

     -104645.5         -99120.625         2.208         0.052         0.185         3.458         1.622         0.370         0.083         0.133   

KF72D0

     -107146.06         -92365.5         2.490         0.135         0.230            1.456         0.734         0.072         0.228   

KF72D4

     -107476.21         -92387.5         2.507         0.149         0.258         3.165         1.428         0.672         0.060         0.346   

KF72D5

     -104990.83         -94551.383         2.530         0.114         0.154            1.480         0.747         0.073         0.230   

KF72D6

     -103411.42         -98019.656         2.562         0.127         0.283         3.375         1.534         0.723         0.067         0.238   

KF7D0

     -102559.56         -97726.023         2.473         0.175         0.434         3.446         1.398         0.701         0.085         0.289   

KF86D0

     -105512.73         -94026.688         2.562         0.124         0.233         3.432         1.422         0.768         0.107         0.265   

KF86D4

     -104417.2         -96727.406         2.581         0.127         0.318            1.533         0.769         0.083         0.196   

KF86D5

     -107476.21         -92387.43         2.598         0.117         0.280         3.250         1.480         0.747         0.052         0.319   

KF87D0

     -107777.9         -92628.102         2.607               3.405         1.591         0.681         0.084         0.250   

KF87D4

     -105833.89         -94571.117         2.652         0.092         0.236         3.435         1.587         0.820         0.115         0.130   

KF87D5

     -105291.8         -93799.203         2.654         0.078         0.170         3.360         1.558         0.711         0.062         0.322   

KF87D6

     -105181.33         -94115.391         2.672         0.120         0.255         3.460         1.663         0.738         0.076         0.195   

KF88D0

     -103409.25         -96416.25         2.700                  1.582         0.800         0.078         0.240   

KF90D0

     -106619.77         -92641.789         2.724         0.182         0.291         3.415         1.597         0.807         0.079         0.242   

KF90D4

     -103853.48         -95778.352         2.729         0.167         0.335         3.431         1.564         0.723         0.080         0.362   

KF90D5

     -104933.8         -96011.422         2.759         0.118         0.279         3.432         1.931         0.567         0.048         0.212   

KF90D6

     -102852.1         -96712.5         2.764                  1.637         0.838         0.079         0.210   

KF97D0

     -104284.6         -95002.531         2.786         0.074         0.211         3.424         1.361         0.742         0.061         0.622   

KF97D4

     -105761.16         -97110.43         2.791         0.138         0.316         3.396         1.604         0.855         0.075         0.257   

KF97D5

     -102861.9         -97541.383         2.800         0.140         0.180            1.643         0.831         0.081         0.246   

KF97D6

     -102548.05         -98414.641         2.807         0.165         0.308         3.540         1.895         0.584         0.051         0.277   

PK118AD0

     -102730.27         -98133.477         2.831         0.181         0.272         3.384         1.688         0.827         0.053         0.263   


BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

PK118D0

     -105833.52         -94571.172         2.831         0.087         0.184         3.457         1.782         0.796         0.118         0.135   

PK118D2

     -108010.77         -93498.445         2.832         0.106         0.296         3.410         1.680         0.784         0.085         0.283   

PK120D0

     -104847.01         -94364.477         2.839         0.200         0.342         3.460         1.666         0.843         0.082         0.248   

PK120D2

     -105181.25         -94115.344         2.844         0.101         0.240         3.432         1.601         0.982         0.091         0.168   

PK13D0

     -107491.5         -94740.258         2.855         0.090         0.245            1.795         0.770         0.089         0.201   

PK14D0

     -105833.72         -94571.148         2.879         0.099         0.216         3.426         1.818         0.764         0.132         0.165   

PK17D0

     -108010.84         -93498.672         2.931         0.124         0.349         3.403         1.612         0.866         0.079         0.374   

PK18D0

     -106217.05         -95630.422         2.932         0.115         0.230         3.129         1.914         0.509         0.094         0.415   

PK206D0

     -103409.7         -97181.414         2.962         0.167         0.358            1.982         0.635         0.071         0.274   

PK206D4

     -107063.29         -91922.891         2.972         0.149         0.395         3.412         1.705         0.895         0.099         0.273   

PK206D5

     -103616.68         -97728.219         3.006         0.150         0.339         3.346         1.811         0.882         0.086         0.228   

PK206D6

     -102621.5         -98858.383         3.065         0.113         0.267         3.290         2.106         0.681         0.067         0.212   

PK207D0

     -107749.9         -92047.797         3.110         0.075         0.218         3.402         2.216         0.543         0.100         0.252   

PK207D4

     -107698.7         -92349         3.121         0.033         0.125         3.482         1.747         1.111         0.072         0.190   

PK207D5

     -105291.85         -93799.18         3.142         0.115         0.242         3.452         1.937         0.929         0.095         0.182   

PK20D0

     -103446.9         -99866.18         2.952         0.100         0.265            1.820         0.815         0.029         0.288   

PK211D0

     -103409.7         -97181.5         3.192         0.149         0.302            1.886         0.951         0.056         0.298   

PK211D4

     -103858.83         -95637.602         3.232         0.084         0.227         3.364         1.612         1.134         0.063         0.423   

PK211D5

     -103174.5         -97310.75         3.272                  1.927         0.978         0.094         0.273   

PK211D6

     -107494.05         -94249.656         3.273         0.025         0.125         3.553         2.474         0.469         0.243         0.088   

PK213D0

     -103446.9         -99866.047         3.367         0.108         0.292            2.162         0.825         0.079         0.301   

PK213D3

     -107491.55         -94740.258         3.424         0.077         0.203            2.179         0.942         0.098         0.204   

PK217D0

     -108087.3         -92927.961         3.430         0.096         0.184            2.022         1.027         0.099         0.282   

PK217D2

     -102621.64         -98858.563         3.486         0.152         0.372         3.389         2.390         0.668         0.069         0.359   

PK217D3

     -107326.8         -91780.703         3.580         0.068         0.153            2.112         1.074         0.103         0.291   

PK218D0

     -108329.31         -95774.859         3.694         0.144         0.348         3.388         2.313         0.845         0.123         0.413   

PK21D0

     -107490.8         -91795.297         3.150                  1.853         0.940         0.091         0.266   

PK22D0

     -105087.81         -93999         3.760                  2.220         1.130         0.108         0.301   

PK230AD0

     -103879.8         -98386         3.800         0.086         0.248         3.460         2.733         0.787         0.128         0.153   

PK245D0

     -103879.8         -98385.719         3.840         0.129         0.301         3.446         2.704         0.786         0.099         0.251   

PK245D4

     -103230.47         -96605.523         3.879         0.179         0.313         3.374         2.143         1.145         0.080         0.511   

PK245D5

     -103858.84         -95637.594         3.919         0.090         0.232         3.288         2.101         1.409         0.078         0.331   

PK245D6

     -106326.1         -92384.5         3.992         0.086         0.196         3.534         2.816         0.761         0.126         0.289   

PK246D0

     -107483         -92143.5         4.209               3.514         2.248         1.485         0.114         0.362   

PK246D4

     -102028.3         -98641.25         4.226                  2.500         1.275         0.122         0.328   

PK246D5

     -106734.46         -92125.898         4.235         0.218         0.380         3.579         2.566         1.081         0.122         0.465   

PK246D6

     -106734.09         -92125.781         4.379         0.272         0.474         3.579         2.520         1.177         0.121         0.560   

PK248D0

     -107063.42         -91923.172         4.490         0.153         0.459         3.380         2.827         1.285         0.120         0.257   

PK248D4

     -103879.8         -98385.578         4.558         0.124         0.275         3.466         2.964         1.093         0.138         0.363   

PK248D5

     -103230.35         -96605.406         4.660         0.156         0.324         3.450         2.894         1.223         0.111         0.432   

PK248D6

     -107468         -91992.492         4.763         0.178         0.438            2.824         1.443         0.137         0.359   

PK24D0

     -107741.25         -93140.938         3.836         0.174         0.279         3.200         2.620         0.869         0.152         0.195   

PK251D0

     -107837.3         -91911         4.863               3.611         2.950         1.132         0.137         0.643   

PK251D3

     -102364.5         -98731.883         4.900         0.080         0.200            2.906         1.485         0.141         0.367   

PK252D0

     -102422         -97918.75         5.030                  2.985         1.526         0.145         0.375   

PK252D3

     -102593.33         -99294.617         5.072         0.191         0.291         3.300         3.720         0.831         0.144         0.377   

PK253D0

     -108199.09         -94373.844         5.074         0.164         0.322            2.772         1.789         0.214         0.299   

PK253D2

     -103007.7         -98023.984         5.140                  3.067         1.579         0.148         0.346   

PK253D3

     -103853.55         -95778.531         5.155         0.224         0.477         3.448         3.118         1.431         0.172         0.434   

PK255D0

     -107659.1         -92124.703         5.708         0.184         0.448         3.392         2.920         1.803         0.166         0.820   


BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

PK256D0

     -104336.79         -94758.5         5.950                  3.538         1.813         0.171         0.428   

PK256D3

     -107493.91         -94249.57         6.318         0.065         0.199         3.580         4.606         1.123         0.273         0.317   

PK256D4

     -104303.57         -96050.906         6.450         0.211         0.429         3.480         3.935         1.698         0.201         0.617   

PK259AD0

     -105761.3         -97110.43         6.542         0.204         0.514         3.402         3.872         2.101         0.179         0.390   

PK259D0

     -103352.7         -98624.5         6.670         0.177         0.464         3.435         4.025         2.120         0.128         0.398   

PK259D2

     -103802.9         -99347.047         6.684         0.128         0.421            3.659         2.421         0.167         0.437   

PK260D0

     -103533.8         -96745.5         7.351                  4.387         2.256         0.212         0.496   

PK260D4

     -102364.5         -98732         7.473         0.087         0.164            4.458         2.291         0.215         0.509   

PK260D5

     -104647.84         -94572.75         7.980         0.116         0.219            4.760         2.445         0.230         0.545   

PK260D6

     -102070.46         -98882.375         8.148         0.015         0.117         3.500         5.017         2.628         0.215         0.287   

PK261D2

     -107494.16         -94249.703         8.192         0.123         0.287         3.578         4.835         2.616         0.297         0.444   

PK261D3

     -102430.09         -97687.742         8.235         0.118         0.393         3.090         3.685         3.530         0.195         0.825   

PK27D0

     -102662         -98652.5         8.329         0.153         0.507            4.652         2.604         0.185         0.888   

PK28D0

     -103802.9         -99347.172         8.593         0.133         0.342            5.431         2.255         0.259         0.648   

PK29D1

     -105558.27         -93827.977         8.596         0.249         0.511         3.533         5.659         1.900         0.332         0.705   

PK30D0

     -103446.9         -99866.25         8.921         0.210         0.350            5.201         2.011         0.115         1.594   

PK30D1

     -103007.7         -98024         9.170                  5.476         2.816         0.264         0.614   

PK31D0

     -102730.28         -98133.531         9.391         0.150         0.531         3.360         5.225         3.350         0.181         0.635   

PK39D0

     -102923.98         -97690.453         9.534         0.029         0.133         3.350         4.070         4.300         0.169         0.995   

PK39D1

     -102070.46         -98882.422         9.845         0.072         0.230         3.480         4.910         3.074         0.193         1.667   

PK3D0

     -104150.3         -95158.5         8.797                  5.252         2.700         0.253         0.592   

PK41D0

     -102070.45         -98882.398         10.613         0.070         0.236         3.514         5.579         3.334         0.205         1.495   

PK41D1

     -102635.2         -97548         10.640                  6.361         3.274         0.307         0.698   

PK42D0

     -103341         -97520.313         11.022         0.100         0.244            6.591         3.394         0.318         0.720   

PK42D1

     -104596.5         -95319         11.032                  6.596         3.397         0.318         0.721   

PK45D0

     -103802.9         -99347.25         11.076         0.076         0.251            7.960         2.235         0.257         0.624   

PK45D1

     -103812.34         -96436.188         11.121         0.205         0.537         3.210         7.242         2.944         0.287         0.648   

PK4D0

     -103812.34         -96436.188         10.194         0.184         0.474         3.150         6.740         2.810         0.245         0.399   

PK51D0

     -103411.52         -98019.852         11.796         0.291         1.050         3.510         6.810         4.105         0.302         0.579   

PK51D4

     -103812.35         -96436.188         12.383         0.189         0.430         3.210         7.804         3.528         0.325         0.726   

PK51D5

     -104303.52         -96050.813         13.424         0.126         0.308         3.506         10.163         2.313         0.651         0.296   

PK52D0

     -102947.77         -96574.031         14.868         0.192         0.445         3.524         8.758         4.747         0.379         0.984   

PK52D4

     -102662         -98652.422         15.349         0.131         0.345            7.499         5.328         0.545         1.978   

PK52D5

     -102109.5         -98373.25         16.396         0.222         0.513         3.526         9.551         5.119         0.431         1.295   

PK54D0

     -102111.24         -98370.5         16.827         0.140         0.507         3.497         9.278         5.551         0.454         1.545   

PK54D4

     -103341         -97520.5         16.840         0.131         0.361            10.092         5.207         0.485         1.056   

PK54D5

     -102947.68         -96574.023         16.841         0.211         0.641         3.524         10.226         5.130         0.503         0.982   

PK55D0

     -102947.58         -96574.008         17.323         0.248         0.589         3.522         10.510         5.209         0.427         1.177   

PK55D4

     -107776.42         -92628.102                           

PK55D5

     -107468         -91992                           

PK56D0

     -107468         -91991.82                           

PK56D4

     -105181.55         -94115.547                           

PK56D5

     -105872.12         -93234.563                           

PK57D0

     -106734.27         -92125.703                           

PK57D4

     -104980.39         -94720.727                           

PK57D5

     -105431.59         -93468.156                           

PK59D0

     -105834.05         -94571.102                           

PK59D4

     -106600.53         -93024.852                           

PK59D5

     -104862.73         -95075.102                           

PK60D0

     -105291.82         -93799.188                           


BHID

   X      Y      PGE      CU      NI      SG      PT      PD      RH      AU  

PK60D4

     -104562.64         -94814.359                           

PK60D5

     -107201.56         -92665.617                           

PK61D0

     -108010.82         -93498.898                           

PK61D4

     -107494.27         -94249.781                           

PK61D5

     -106323.9         -92386                           

PK62D0

     -106323.4         -92386.5                           

PK62D4

     -105558.22         -93827.961                           

PK62D5

     -107063.37         -91923.039                           

PK63D4

     -106619.77         -92641.813                           

PK63D5

     -104846.8         -94364.617                           

PK64D0

     -108329.81         -95774.922                           

PK64D4

     -102111.23         -98370.5                           

PK64D5

     -105761.03         -97110.43                           

PK65D0

     -104645.38         -99120.664                           

PK65D1

     -102070.45         -98882.391                           

PK65D2

     -103858.83         -95637.602                           

PK67D0

     -103523.61         -95982.742                           

PK67D4

     -102670.6         -96849.5                           

PK67D5

     -103352.7         -98623.953                           

PK68D0

     -104933.62         -96011.602                           

PK68D1

     -103853.49         -95778.594                           

PK68D2

     -103715.91         -96779.844                           

PK90D0

     -102430.02         -97687.719                           

PK90D2

     -103879.8         -98385.844                           

PK90D3

     -103230.48         -96605.453                           

PK9D0

     -102429.2         -97686.75                           


2) BOREHOLE MR REEF CHANNEL

 

BHID

  X     Y     LENGTH     USE     PGE     CU     NI     SG     PT     PD     RH     AU     TRUETHK     FACIES   PGEMGT  

BF100D0

    -107483        -92144        0.87        1        7.892        —          —          3.600        4.173        2.979        0.205        0.536        0.840      NORM     6.63   

BF112D0

    -107681        -91821        0.90        1        5.374        0.083        0.272        3.445        3.302        1.577        0.226        0.269        0.874      NORM     4.70   

BF128D0

    -107778        -92628        0.73        1        2.797        —          —          3.292        1.852        0.633        0.126        0.187        0.710      NORM     1.99   

BF128D1

    -107778        -92628        0.74        1        3.550        0.095        0.224        3.451        2.315        0.881        0.147        0.206        0.718      NORM     2.55   

BF128D2

    -107776        -92628        0.76        1        —          —          —          —          —          —          —          —          0.732      NORM     —     

BF2D0

    -107468        -91992        0.92        1        —          —          —          —          —          —          —          —          0.885      NORM     —     

BF2D1

    -107468        -91992        0.92        1        —          —          —          —          —          —          —          —          0.890      NORM     —     

BF2D2

    -107468        -91992        0.92        1        3.685        0.134        0.402        —          2.308        0.996        0.131        0.250        0.888      NORM     3.27   

BF2D3

    -107468        -91993        0.92        1        4.111        0.077        0.233        —          2.573        1.121        0.148        0.269        0.880      NORM     3.62   

BF201D0

    -107750        -92048        0.97        1        1.575        0.016        0.100        3.452        1.110        0.352        0.052        0.060        0.937      NORM     1.48   

BF202D0

    -107659        -92125        0.62        1        15.913        0.239        0.507        3.427        8.835        5.393        0.447        1.238        0.599      NORM     9.53   

BF205D0

    -107469        -91827        0.97        1        4.880        0.152        0.340        3.480        2.712        1.666        0.174        0.328        0.937      NORM     4.57   

BF206D0

    -107471        -92030        1.01        1        6.641        0.186        0.377        3.496        3.758        2.194        0.217        0.472        0.971      NORM     6.45   

BF276D0

    -107699        -92349        0.76        1        4.043        0.028        0.111        3.458        2.483        1.256        0.143        0.161        0.734      NORM     2.97   

BF279D0

    -108251        -92859        0.69        1        2.531        0.062        0.153        3.390        1.613        0.688        0.081        0.149        0.669      NORM     1.69   

BF287D0

    -108102        -93031        0.65        1        3.335        0.010        0.084        3.555        2.582        0.523        0.197        0.033        0.628      NORM     2.09   

BF29D0

    -108087        -92928        0.68        1        3.243        0.110        0.214        —          2.026        0.874        0.117        0.226        0.657      NORM     2.13   

BF29D1

    -108087        -92928        0.64        1        3.015        0.074        0.156        —          1.885        0.807        0.108        0.216        0.623      NORM     1.88   

BF38D0

    -107327        -91781        0.80        1        5.088        0.111        0.235        —          3.183        1.406        0.185        0.313        0.773      NORM     3.93   

BF4D0

    -107491        -91795        0.99        1        3.347        —          —          —          2.097        0.898        0.118        0.234        0.955      NORM     3.20   

BF98D0

    -107837        -91911        0.82        1        7.972        —          —          3.624        4.622        2.393        0.276        0.681        0.792      NORM     6.31   

BF99D0

    -107609        -91866        0.78        1        2.790        —          —          3.602        1.770        0.746        0.107        0.168        0.753      NORM     2.10   

KF101D0

    -105181        -94115        0.99        1        7.479        0.170        0.322        3.468        4.627        2.239        0.240        0.374        0.955      NORM     7.15   

KF101D2

    -105181        -94115        0.97        1        7.872        0.151        0.366        3.485        4.667        2.571        0.264        0.369        0.937      NORM     7.38   

KF101D3

    -105181        -94115        0.97        1        7.100        0.203        0.315        3.472        4.196        2.176        0.207        0.521        0.934      NORM     6.63   

KF101D4

    -105182        -94116        1.04        1        —          —          —          —          —          —          —          —          1.005      NORM     —     

KF102D0

    -105872        -93234        0.61        1        2.596        0.055        0.162        3.448        1.806        0.541        0.086        0.162        0.590      NORM     1.53   

KF102D3

    -105872        -93235        0.61        1        2.045        0.057        0.188        3.426        1.325        0.517        0.081        0.122        0.589      NORM     1.20   

KF102D4

    -105872        -93235        0.60        1        —          —          —          —          —          —          —          —          0.580      NORM     —     

KF102D5

    -105872        -93235        0.60        1        1.570        0.096        0.205        3.395        0.881        0.447        0.035        0.207        0.586      NORM     0.92   

KF103D0

    -106734        -92126        0.87        1        3.567        0.104        0.229        3.495        2.102        1.070        0.099        0.296        0.839      NORM     2.99   

KF103D2

    -106734        -92126        0.80        1        4.923        0.198        0.383        3.494        2.725        1.557        0.133        0.508        0.769      NORM     3.79   

KF103D3

    -106734        -92126        0.89        1        —          —          —          —          —          —          —          —          0.859      NORM     —     

KF103D4

    -106734        -92126        0.87        1        4.567        0.128        0.253        3.562        2.910        1.174        0.171        0.312        0.837      NORM     3.82   

KF105D0

    -104980        -94721        0.64        1        3.408        0.025        0.096        3.320        2.455        0.679        0.181        0.093        0.627      NORM     2.14   

KF105D1

    -104980        -94721        0.66        1        2.979        0.040        0.124        3.247        1.997        0.670        0.138        0.174        0.641      NORM     1.91   

KF105D2

    -104980        -94721        0.53        1        —          —          —          —          —          —          —          —          0.512      NORM     —     

KF108D0

    -105432        -93468        1.06        1        3.421        0.059        0.168        3.434        2.233        0.885        0.145        0.158        1.026      NORM     3.51   

KF108D3

    -105432        -93468        1.00        1        —          —          —          —          —          —          —          —          0.963      NORM     —     

KF108D4

    -105432        -93468        1.02        1        5.567        0.134        0.249        3.433        3.446        1.629        0.176        0.316        0.994      NORM     5.54   

KF108D5

    -105432        -93468        0.93        1        3.630        0.084        0.206        3.392        2.332        0.962        0.118        0.218        0.906      NORM     3.29   

KF109D0

    -105833        -94571        0.89        1        3.423        0.082        0.175        3.464        2.037        1.068        0.119        0.198        0.878      POTEDG     3.00   

KF109D4

    -105834        -94571        0.99        1        5.969        0.166        0.334        3.458        3.268        2.016        0.179        0.506        0.972      POTEDG     5.80   

KF109D5

    -105834        -94571        0.77        1        3.463        0.099        0.235        3.430        1.963        1.118        0.131        0.251        0.754      POTEDG     2.61   

KF109D6

    -105834        -94571        0.73        1        —          —          —          —          —          —          —          —          0.711      POTEDG     —     

KF11D0

    -106336        -92737        0.69        1        4.310        —          —          —          2.698        1.179        0.155        0.278        0.666      NORM     2.87   

KF112D0

    -106600        -93025        0.67        1        3.562        0.122        0.261        3.417        2.444        0.683        0.188        0.246        0.648      POTEDG     2.31   

KF112D4

    -106601        -93025        0.63        1        —          —          —          —          —          —          —          —          0.609      POTEDG     —     

KF112D5

    -106601        -93025        0.63        1        1.192        0.101        0.214        3.404        0.686        0.306        0.057        0.144        0.611      POTEDG     0.73   

KF112D6

    -106601        -93025        0.66        1        3.530        0.111        0.235        3.441        2.486        0.666        0.175        0.202        0.640      POTEDG     2.26   

KF118D0

    -104863        -95075        0.85        1        2.202        0.045        0.157        3.486        1.522        0.481        0.085        0.114        0.821      NORM     1.81   

KF118D3

    -104863        -95075        0.90        1        2.412        0.037        0.145        3.549        1.636        0.541        0.114        0.121        0.868      NORM     2.09   


BHID

  X     Y     LENGTH     USE     PGE     CU     NI     SG     PT     PD     RH     AU     TRUETHK     FACIES   PGEMGT  

KF118D4

    -104863        -95075        0.88        1        —          —          —          —          —          —          —          —          0.845      NORM     —     

KF119D0

    -105292        -93799        1.02        1        7.952        —          —          —          4.716        2.306        0.213        0.718        0.989      NORM     7.87   

KF119D2

    -105292        -93799        1.01        1        —          —          —          —          —          —          —          —          0.977      NORM     —     

KF119D3

    -105292        -93799        1.05        1        4.585        0.100        0.237        3.483        2.802        1.369        0.167        0.246        1.011      NORM     4.64   

KF12D0

    -104755        -94895        1.21        1        3.153        —          —          —          1.974        0.850        0.112        0.217        1.167      NORM     3.68   

KF121D0

    -105513        -94027        0.73        1        5.463        0.214        0.370        3.497        3.023        1.763        0.197        0.480        0.706      POTEDG     3.85   

KF123D0

    -104563        -94814        1.03        1        5.944        0.047        0.172        3.485        3.708        1.681        0.181        0.375        1.004      NORM     5.97   

KF123D2

    -104563        -94814        1.05        1        4.781        0.214        0.261        3.467        2.470        1.025        0.118        1.168        1.020      NORM     4.88   

KF123D3

    -104563        -94814        1.06        1        —          —          —          —          —          —          —          —          1.020      NORM     —     

KF125D0

    -107202        -92666        0.15        1        —          —          —          —          —          —          —          —          0.148      POTEDG     —     

KF125D2

    -107202        -92666        0.21        1        7.724        0.061        0.174        3.532        5.583        1.494        0.421        0.226        0.198      POTEDG     1.53   

KF125D3

    -107202        -92666        0.16        1        7.140        0.092        0.246        3.520        4.835        1.570        0.425        0.310        0.159      POTEDG     1.14   

KF126D0

    -107837        -91911        0.82        1        7.972        —          —          3.624        4.622        2.393        0.276        0.681        0.792      NORM     6.31   

KF126D1

    -108011        -93499        0.49        1        7.497        0.100        0.298        3.439        4.822        1.835        0.307        0.533        0.473      POTEDG     3.55   

KF126D2

    -108011        -93499        0.49        1        3.011        0.073        0.229        3.408        1.963        0.705        0.116        0.227        0.473      POTEDG     1.42   

KF126D3

    -108011        -93499        1.18        1        —          —          —          —          —          —          —          —          1.145      POTEDG     —     

KF127D0

    -107494        -94250        0.17        1        7.915        0.101        0.233        3.520        5.170        1.875        0.365        0.505        0.165      POTEDG     1.31   

KF127D3

    -107494        -94250        0.25        1        7.625        0.120        0.361        3.480        5.043        1.753        0.458        0.373        0.244      POTEDG     1.86   

KF127D4

    -107494        -94250        0.18        1        10.305        0.067        0.214        3.550        7.725        1.710        0.615        0.255        0.176      POTEDG     1.82   

KF127D5

    -107494        -94250        0.18        1        —          —          —          —          —          —          —          —          0.177      POTEDG     —     

KF13D0

    -105377        -94297        0.90        1        6.737        —          —          —          4.212        1.888        0.248        0.388        0.869      POTEDG     5.86   

KF15D0

    -106837        -92704        0.91        1        1.301        —          —          —          0.809        0.348        0.047        0.097        0.884      NORM     1.15   

KF28D0

    -106019        -93031        0.89        1        6.764        0.170        0.357        —          4.229        1.896        0.249        0.389        0.862      NORM     5.83   

KF28D1

    -106019        -93030        0.86        1        4.807        0.105        0.189        —          3.008        1.324        0.174        0.301        0.835      NORM     4.01   

KF29D0

    -104991        -94552        0.91        1        3.064        0.087        0.163        —          1.917        0.832        0.110        0.206        0.880      NORM     2.70   

KF29D1

    -104991        -94551        0.90        1        0.772        0.036        0.049        —          0.476        0.207        0.028        0.061        0.873      NORM     0.67   

KF3D0

    -104715        -94151        1.51        1        2.645        —          —          —          1.654        0.716        0.095        0.181        1.459      NORM     3.86   

KF32D0

    -108199        -94374        0.67        1        6.059        0.128        0.267        —          3.792        1.746        0.260        0.261        0.642      NORM     3.89   

KF32D4

    -108198        -94373        0.49        1        4.131        0.068        0.182        —          2.749        0.989        0.188        0.205        0.478      NORM     1.98   

KF32D5

    -108199        -94374        0.57        1        1.942        0.035        0.122        —          1.266        0.516        0.095        0.065        0.555      NORM     1.08   

KF34D0

    -107491        -94740        0,67        1        4,647        0.099        0.348        —          2.667        1.521        0.172        0.286        0.655      POTEDG     3.04   

KF34D4

    -107492        -94740        0.70        1        2.692        0.051        0.151        —          1.674        0.779        0.091        0.148        0.683      POTEDG     1.84   

KF34D5

    -107492        -94740        0.62        1        4.441        0.095        0.279        —          2.792        1.228        0.135        0.287        0.606      POTEDG     2.69   

KF37D0

    -105589        -94912        0.24        1        2.422        0.065        0.166        —          1.556        0.577        0.043        0.246        0.232      POTEDG     0.56   

KF37D4

    -105589        -94912        0.62        1        2.815        0.114        0.262        —          1.663        0.785        0.084        0.283        0.599      POTEDG     1.69   

KF37D5

    -105589        -94912        0.50        1        3.575        0.057        0.176        —          2.025        1.153        0.092        0.305        0.484      POTEDG     1.73   

KF38D5

    -104764        -95370        0.54        1        5.667        0.209        0.444        —          3.383        1.653        0.169        0.462        0.522      POTEDG     2.96   

KF38D6

    -104764        -95370        0.61        1        1.067        0.030        0.118        —          0.712        0.246        0.030        0.079        0.589      POTEDG     0.63   

KF39D0

    -105173        -95272        0.54        1        1.681        0.099        0.275        3.406        0.960        0.419        0.039        0.264        0.519      POTEDG     0.87   

KF39D4

    -105173        -95272        0.41        1        3.151        0.080        0.216        3.365        2.077        0.781        0.148        0.145        0.397      POTEDG     1.25   

KF39D5

    -105173        -95272        0.51        1        1.487        0.055        0.161        3.386        0.985        0.305        0.050        0.146        0.494      POTEDG     0.73   

KF4D0

    -106631        -92371        0.91        1        5.104        —          —          —          3.193        1.411        0.186        0.314        0.882      NORM     4.50   

KF44RD0

    -106047        -93308        0.47        1        8.926        0.134        0.380        3.134        4.369        3.122        0.297        1.138        0.454      POTEDG     4.05   

KF46D0

    -105298        -94925        0.31        1        9.866        0.109        0.247        —          6.165        2.803        0.369        0.530        0.299      POTEDG     2.95   

KF46D1

    -105298        -94925        0.15        1        6.865        0.079        0.166        —          4.284        1.936        0.257        0.388        0.145      POTEDG     0.99   

KF5D0

    -105286        -93616        0.91        1        3.107        —          —          —          1.947        0.827        0.109        0.224        0.880      NORM     2.73   

KF51D0

    -107146        -92366        0.56        1        15.658        0.342        0.558        —          9.779        4.496        0.591        0.792        0.543      NORM     8.50   

KF51D1

    -107146        -92365        0.53        1        11.276        0.185        0.415        —          7.045        3.215        0.423        0.594        0.513      NORM     5.78   

KF52D0

    -104648        -94573        0.91        1        3.462        0.046        0.100        —          2.160        0.941        0.126        0.234        0.881      NORM     3.05   

KF52D1

    -104648        -94573        1.02        1        3.925        0.097        0.181        —          2.452        1.074        0.143        0.256        0.989      NORM     3.88   

KF57D4

    -107741        -93141        0.73        1        3.001        0.091        0.198        3.160        1.746        0.859        0.142        0.254        0.711      POTEDG     2.13   

KF57D5

    -107741        -93141        0.79        1        3.338        0.142        0.270        3.220        1.939        0.936        0.079        0.384        0.764      POTEDG     2.55   

KF6D0

    -105088        -93999        0.92        1        2.393        —          —          —          1.501        0.619        0.082        0.191        0.885      NORM     2.12   

KF60D0

    -107476        -92388        0.76        1        5.642        0.188        0.256        3.219        3.628        1.254        0.168        0.592        0.734      NORM     4.14   

KF60D4

    -107476        -92387        0.79        1        2.897        0.069        0.206        3.185        1.794        0.798        0.087        0.219        0.766      NORM     2.22   


BHID

  X     Y     LENGTH     USE     PGE     CU     NI     SG     PT     PD     RH     AU     TRUETHK     FACIES   PGEMGT  

KF60D5

    -107476        -92387        0.80        1        1.074        0.066        0.173        3.086        0.577        0.310        0.015        0.172        0.770      NORM     0.83   

KF63AD0

    -106326        -92385        0.67        1        7.980        0.179        0.368        3.538        5.003        2.112        0.241        0.624        0.642      NORM     5.13   

KF63BD0

    -106324        -92386        0.65        1        —          —          —          —          —          —          —          —          0.623      NORM     —     

KF63CD0

    -106323        -92387        0.57        1        —          —          —          —          —          —          —          —          0.551      NORM     —     

KF63D0

    -106328        -92383        0.86        1        5.131        0.155        0.389        3.474        3.041        1.547        0.148        0.394        0.831      NORM     4.26   

KF7D0

    -104337        -94759        0.54        1        8.852        —          —          —          5.532        2.507        0.330        0.484        0.517      NORM     4.57   

KF72D0

    -105558        -93828        0.33        1        3.990        0.108        0.257        3.438        2.611        0.985        0.190        0.204        0.325      POTEDG     1.30   

KF72D4

    -105558        -93828        0.27        1        5.481        0.056        0.175        3.413        3.839        1.188        0.326        0.127        0.261      POTEDG     1.43   

KF72D5

    -105558        -93828        0.17        1        16.340        0.321        0.544        3.650        11.050        3.320        0.670        1.300        0.159      POTEDG     2.60   

KF72D6

    -105558        -93828        0.32        1        —          —          —          —          —          —          —          —          0.305      POTEDG     —     

KF86D0

    -107063        -91923        0.80        1        6.891        0.112        0.381        3.480        4.016        2.188        0.221        0.466        0.778      NORM     5.36   

KF86D4

    -107063        -91923        0.82        1        —          —          —          —          —          —          —          —          0.793      NORM     —     

KF86D5

    -107063        -91923        0.79        1        5.611        0.140        0.357        3.401        3.322        1.676        0.167        0.446        0.768      NORM     4.31   

KF87D0

    -106620        -92642        0.84        1        2.735        0.075        0.232        3.284        1.710        0.725        0.097        0.203        0.811      NORM     2.22   

KF87D4

    -106620        -92642        0.83        1        3.149        0.046        0.141        3.392        1.973        0.840        0.111        0.225        0.802      NORM     2.52   

KF87D5

    -106620        -92642        0.73        1        —          —          —          —            —          —          —          0.700      NORM     —     

KF87D6

    -106620        -92642        0.85        1        5.551        0.163        0.304        3.442        3.472        1.542        0.203        0.334        0.816      NORM     4.53   

KF88D0

    -106217        -95630        0.26        1        10.805        0.241        0.410        —          7.420        1.785        0.452        1.147        0.257      POTEDG     2.78   

KF90D0

    -104847        -94364        1.01        1        4.470        0.091        0.299        3.460        2.797        1.226        0.161        0.285        0.971      NORM     4.34   

KF90D4

    -104847        -94364        1.03        1        5.310        0.109        0.266        3.385        3.322        1.471        0.194        0.323        1.000      NORM     5.31   

KF90D5

    -104847        -94365        1.01        1        5.359        0.111        0.254        3.368        3.352        1.486        0.195        0.326        0.976      NORM     5.23   

KF90D6

    -104847        -94365        0.99        1        —          —          —          —          —          —          —          —          0.951      NORM     —     

KF97D0

    -108329        -95775        0.70        1        8.843        0.123        0.294        3.430        6.578        1.420        0.479        0.366        0.692      NORM     6.12   

KF97D4

    -108330        -95775        0.61        1        6.086        0.108        0.261        3.429        3.974        1.576        0.204        0.333        0.596      NORM     3.63   

KF97D5

    -108330        -95775        0.70        1        3.943        0.036        0.126        3.454        3.010        0.628        0.228        0.077        0.684      NORM     2.70   

KF97D6

    -108330        -95775        0.73        1        —          —          —          —          —          —          —          —          0.713      NORM     —     

PK118AD0

    -102110        -98373        0.65        1        6.188        0.056        0.198        3.486        3.531        1.961        0.172        0.524        0.628      NORM     3.88   

PK118D0

    -102111        -98370        0.64        1        —          —          —          —          —          —          —          —          0.620      NORM     —     

PK118D2

    -102111        -98370        1.13        1        5.715        0.010        0.112        3.452        3.413        1.849        0.175        0.278        1.090      NORM     6.23   

PK120D0

    -104304        -96051        0.80        1        8.441        0.108        0.268        3.450        5.669        2.123        0.300        0.349        0.778      NORM     6.57   

PK120D2

    -104304        -96051        0.64        1        9.221        0.180        0.341        3.449        5.802        2.471        0.255        0.694        0.618      NORM     5.70   

PK13D0

    -102422        -97919        0.51        1        3.341        —          —          —          2.093        0.896        0.118        0.234        0.495      NORM     1.65   

PK14D0

    -104150        -95159        0.71        1        2.473        —          —          —          1.546        0.667        0.088        0.172        0.688      NORM     1.70   

PK17D0

    -102852        -96713        0.92        1        2.975        —          —          —          1.857        0.822        0.109        0.187        0.885      NORM     2.63   

PK18D0

    -102697        -97142        1.22        1        3.363        —          —          —          2.107        0.902        0.119        0.235        1.177      NORM     3.96   

PK20D0

    -102635        -97548        1.21        1        2.587        —          —          —          1.622        0.675        0.089        0.200        1.172      NORM     3.03   

PK206D0

    -105761        -97110        1.02        1        10.844        0.260        0.553        3.420        5.968        3.876        0.276        0.724        0.997      NORM     10.82   

PK206D4

    -105761        -97110        0.97        1        —          —          —          —          —          —          —          —          0.955      NORM     —     

PK206D5

    -105761        -97110        0.95        1        12.185        0.243        0.579        3.412        6.349        4.639        0.321        0.875        0.926      NORM     11.28   

PK206D6

    -105761        -97110        0.91        1        3.355        0.071        0.233        3.378        1.996        1.062        0.102        0.196        0.892      NORM     2.99   

PK207D0

    -104645        -99121        0.89        1        1.579        0.005        0.084        3.411        1.224        0.230        0.086        0.038        0.867      NORM     1.37   

PK207D4

    -104645        -99121        0.89        1        —          —          —          —          —          —          —          —          0.865      NORM     —     

PK207D5

    -104645        -99121        0.90        1        7.510        0.122        0.251        3.473        4.103        2.579        0.195        0.634        0.875      NORM     6.57   

PK21D0

    -102530        -97988        1.23        1        2.242        —          —          —          1.407        0.574        0.076        0.184        1.187      NORM     2.66   

PK211D0

    -102070        -98882        0.82        1        5.215        0.007        0.106        3.518        3.027        1.688        0.184        0.316        0.793      NORM     4.14   

PK211D4

    -102070        -98882        0.74        1        3.206        0.012        0.111        3.469        1.697        1.080        0.068        0.360        0.715      NORM     2.29   

PK211D5

    -102070        -98882        0.88        1        —          —          —          —          —          —          —          —          0.847      NORM     —     

PK211D6

    -102070        -98882        0.85        1        3.277        0.006        0.099        3.483        2.017        1.073        0.090        0.097        0.818      NORM     2.68   

PK213D0

    -104285        -95002        1.16        1        4.265        0.049        0.178        3.349        2.756        1.122        0.142        0.245        1.122      NORM     4.79   

PK213D3

    -104285        -95003        0.89        1        2.578        0.019        0.105        3.440        1.640        0.713        0.075        0.151        0.859      NORM     2.22   

PK217D0

    -103859        -95638        1.22        1        —          —          —          —          —          —          —          —          1.177      NORM     —     

PK217D2

    -103859        -95638        1.63        1        2.427        0.040        0.145        3.454        1.439        0.780        0.065        0.144        1.568      NORM     3.80   

PK217D3

    -103859        -95638        1.38        1        4.461        0.069        0.206        3.453        2.676        1.433        0.129        0.222        1.334      NORM     5.95   

PK218D0

    -103524        -95983        1.03        1        —          —          —          —          —          —          —          —          0.995      NORM     —     

PK22D0

    -102369        -98351        0.70        1        4.734        —          —          —          2.962        1.303        0.171        0.297        0.676      NORM     3.20   


BHID

  X     Y     LENGTH     USE     PGE     CU     NI     SG     PT     PD     RH     AU     TRUETHK     FACIES   PGEMGT  

PK230AD0

    -102671        -96850        1.39        1        —          —          —          —          —          —          —          —          1.343      NORM     —     

PK24D0

    -101923        -99066        0.73        1        3.081        —          —          —          1.931        0.820        0.108        0.222        0.702      NORM     2.16   

PK245D4

    -103353        -98624        0.87        1        15.646        0.199        0.556        —          8.720        5.552        0.405        0.969        0.841      NORM     13.16   

PK245D6

    -103353        -98624        0.99        1        —          —          —          —          —          —          —          —          0.958      NORM     —     

PK246D0

    -104934        -96011        0.83        1        7.793        0.208        0.391        3.476        4.370        2.391        0.217        0.815        0.796      NORM     6.20   

PK246D4

    -104934        -96012        0.90        1        3.412        0.055        0.171        3.402        2.187        0.902        0.142        0.182        0.871      NORM     2.97   

PK246D5

    -104934        -96012        0.90        1        —          —          —          —          —          —          —          —          0.862      NORM     —     

PK246D6

    -104934        -96012        0.92        1        4.253        0.099        0.249        3.441        2.501        1.270        0.163        0.319        0.894      NORM     3.80   

PK248D0

    -103853        -95779        1.12        1        6.168        0.172        0.382        3.512        3.425        2.094        0.165        0.484        1.082      NORM     6.67   

PK248D4

    -103854        -95779        1.16        1        —          —          —          —          —          —          —          —          1.119      NORM     —     

PK248D5

    -103854        -95779        1.15        1        3.669        0.072        0.214        3.423        2.366        0.959        0.141        0.202        1.114      NORM     4.09   

PK248D6

    -103853        -95778        1.08        1        2.473        0.055        0.183        3.432        1.616        0.606        0.103        0.149        1.051      NORM     2.60   

PK251D0

    -103007        -98413        1.60        1        2.971        0.029        0.127        3.365        1.930        0.752        0.138        0.151        1.575      NORM     4.68   

PK251D3

    -103007        -98413        1.82        1        5.643        0.037        0.151        3.332        3.147        2.000        0.200        0.295        1.780      NORM     10.04   

PK252D0

    -104208        -95464        1.32        1        2.833        0.063        0.166        3.349        1.742        0.828        0.095        0.166        1.281      NORM     3.63   

PK252D3

    -104209        -95464        0.25        0.1        5.972        0.180        0.384        3.445        3.799        1.674        0.189        0.310        0.241      NORM     1.44   

PK253D0

    -102948        -96574        0.89        1        2.198        0.013        0.110        3.476        1.455        0.566        0.058        0.119        0.858      NORM     1.89   

PK253D2

    -102948        -96574        0.97        1        3.752        0.037        0.179        3.470        2.131        1.292        0.089        0.241        0.937      NORM     3.52   

PK253D3

    -102948        -96574        0.97        1        5.248        0.064        0.246        3.398        2.697        1.908        0.115        0.527        0.937      NORM     4.92   

PK255D0

    -102355        -98054        1.13        1        3.452        0.049        0.201        3.422        2.114        1.017        0.122        0.199        1.091      NORM     3.77   

PK256D0

    -103716        -96780        0.90        1        9.980        0.253        0.552        3.422        5.093        3.481        0.210        1.197        0.885      NORM     8.83   

PK256D3

    -103716        -96780        0.95        1        10.155        0.255        0.593        3.483        5.355        3.766        0.219        0.815        0.931      NORM     9.46   

PK256D4

    -103716        -96780        0.93        1        —          —          —          —          —          —          —          —          0.919      NORM     —     

PK259AD0

    -102429        -97687        0.80        1        —          —          —          —          —          —          —          —          0.773      NORM     —     

PK259D0

    -102430        -97688        0.81        1        3.983        0.010        0.078        3.516        2.900        0.931        0.104        0.049        0.788      NORM     3.14   

PK259D2

    -102430        -97688        1.06        1        —          —          —          —          —          —          —          —          1.027      NORM     —     

PK260DO

    -103880        -98386        1.17        1        2.474        0.029        0.143        3.446        1.846        0.466        0.101        0.060        1.125      NORM     2.78   

PK260D4

    -103880        -98386        1.17        1        —          —          —          —          —          —          —          —          1.130      NORM     —     

PK260D5

    -103880        -98386        1.07        1        1.932        0.030        0.118        3.432        1.450        0.340        0.075        0.069        1.031      NORM     1.99   

PK260D6

    -103880        -98386        1.05        1        1.621        0.023        0.108        3.417        1.246        0.228        0.076        0.071        1.014      NORM     1.64   

PK261D2

    -102560        -97726        0.94        1        2.937        0.071        0.240        3.421        1.743        0.820        0.107        0.267        0.911      NORM     2.68   

PK261D3

    -102560        -97726        0.92        1        1.263        0.035        0.147        3.408        0.740        0.348        0.043        0.131        0.889      NORM     1.12   

PK27D0

    -103409        -96416        0.73        1        1.909        —          —          —          1.196        0.493        0.065        0.155        0.704      NORM     1.34   

PK28D0

    -104597        -95319        0.95        1        6.382        —          —          —          3.989        1.793        0.236        0.364        0.921      NORM     5.87   

PK29D1

    -103175        -97311        1.01        1        6.536        —          —          —          4.087        1.830        0.241        0.379        0.980      NORM     6.41   

PK3D0

    -102497        -96899        1.79        1        7.040        —          —          —          4.401        1.977        0.260        0.402        1.731      NORM     12.19   

PK30D0

    -103008        -98024        1.12        1        2.502        —          —          —          1.563        0.681        0.090        0.168        1.084      NORM     2.71   

PK30D1

    -103008        -98024        1.15        1        4.878        —          —          —          3.046        1.374        0.181        0.278        1.115      NORM     5.44   

PK31D0

    -103534        -96746        0.92        1        3.882        —          —          —          2.425        1.079        0.142        0.236        0.885      NORM     3.43   

PK39D0

    -104032        -95680        0.96        1        5.316        0.123        0.147        —          3.322        1.487        0.196        0.311        0.927      NORM     4.93   

PK39D1

    -104032        -95680        0.95        1        3.934        0.084        0.116        —          2.463        1.069        0.141        0.261        0.921      NORM     3.62   

PK4D0

    -102574        -96986        0.43        1        2.970        —          —          —          1.861        0.787        0.104        0.217        0.420      NORM     1.25   

PK41D0

    -103341        -97521        1.26        1        3.603        0.016        0.027        —          2.257        0.972        0.128        0.246        1.217      NORM     4.39   

PK41D1

    -103341        -97520        1.24        1        8.149        0.032        0.055        —          5.093        2.301        0.303        0.452        1.202      NORM     9.80   

PK42D0

    -102862        -97542        1.15        1        7.426        0.070        0.142        —          4.636        2.119        0.279        0.392        1.113      NORM     8.26   

PK42D1

    -102862        -97541        1.17        1        4.153        0.094        0.140        —          2.595        1.154        0.152        0.252        1.137      NORM     4.72   

PK45D0

    -102365        -98732        1.16        1        2.971        0.035        0.050        —          1.854        0.823        0.109        0.185        1.121      NORM     3.33   

PK45D1

    -102365        -98732        1.14        1        2.821        0.030        0.066        —          1.766        0.757        0.100        0.198        1.109      NORM     3.13   

PK51D0

    -104417        -96728        0.80        1        2.439        0.038        0.137        —          1.723        0.486        0.129        0.101        0.773      NORM     1.88   

PK51D4

    -104417        -96727        0.78        1        4.891        0.091        0.278        —          3.221        1.244        0.208        0.218        0.756      NORM     3.70   

PK51D5

    -104417        -96727        0.83        1        1.888        0.045        0.145        —          1.255        0.454        0.067        0.112        0.803      NORM     1.52   

PK52D0

    -103410        -97182        1.15        1        5.792        0.050        0.154        —          4.188        1.087        0.331        0.186        1.111      NORM     6.43   

PK52D4

    -103410        -97181        1.36        1        3.369        0.070        0.195        —          2.091        0.970        0.066        0.241        1.317      NORM     4.44   

PK52D5

    -103410        -97181        1.09        1        3.213        0.066        0.189        —          1.799        1.075        0.060        0.279        1.056      NORM     3.39   

PK54D0

    -104276        -97857        0.36        1        14.391        0.219        0.572        —          8.497        4.409        0.567        0.919        0.348      NORM     5.00   


BHID

  X     Y     LENGTH     USE     PGE     CU     NI     SG     PT     PD     RH     AU     TRUETHK     FACIES   PGEMGT  

PK54D4

    -104276        -97856        0.32        1        0.975        0.221        0.484        —          0.505        0.298        0.026        0.145        0.309      NORM     0.30   

PK54D5

    -104276        -97856        0.43        1        9.558        0.161        0.350        —          6.099        2.634        0.217        0.608        0.418      NORM     3.99   

PK55D0

    -102662        -98653        1.17        1        2.196        0.035        0.167        —          1.299        0.588        0.062        0.247        1.130      NORM     2.48   

PK55D4

    -102662        -98652        0.76        1        5.810        0.024        0.130        —          3.238        1.899        0.174        0.499        0.740      NORM     4.30   

PK55D5

    -102662        -98652        1.18        1        4.555        0.042        0.193        —          2.870        1.203        0.148        0.333        1.143      NORM     5.21   

PK56D0

    -103803        -99347        0.91        1        3.359        0.018        0.113        —          2.582        0.535        0.129        0.113        0.879      NORM     2.95   

PK56D4

    -103803        -99347        0.76        1        6.572        0.042        0.186        —          4.405        1.595        0.268        0.305        0.736      NORM     4.84   

PK56D5

    -103803        -99347        0.83        1        10.972        0.085        0.354        —          5.685        4.012        0.346        0.929        0.805      NORM     8.83   

PK57D0

    -103447        -99866        1.13        1        6.117        0.026        0.119        —          4.527        1.125        0.359        0.106        1.092      NORM     6.68   

PK57D4

    -103447        -99866        1.07        1        1.974        0.025        0.116        —          1.503        0.307        0.075        0.088        1.038      NORM     2.05   

PK57D5

    -103447        -99866        1.07        1        2.128        0.017        0.096        —          1.659        0.321        0.097        0.050        1.037      NORM     2.21   

PK59D0

    -102548        -98414        0.98        1        4.861        0.100        0.276        3.450        2.958        1.492        0.168        0.243        0.955      NORM     4.64   

PK59D4

    -102548        -98415        1.01        1        4.367        0.084        0.221        3.412        2.778        1.189        0.149        0.251        0.978      NORM     4.27   

PK59D5

    -102548        -98415        0.97        1        6.207        0.065        0.196        3.448        3.660        2.048        0.150        0.349        0.939      NORM     5.83   

PK60D0

    -102593        -99295        1.25        1        2.528        0.018        0.071        3.369        1.606        0.742        0.084        0.097        1.219      NORM     3.08   

PK60D4

    -102593        -99295        1.09        1        3.160        0.037        0.100        3.395        2.114        0.729        0.164        0.153        1.056      NORM     3.34   

PK60D5

    -102593        -99295        1.07        1        2.005        0.016        0.079        3.349        1.555        0.290        0.096        0.064        1.039      NORM     2.08   

PK61D0

    -102730        -98133        1.31        1        3.637        0.066        0.132        3.361        2.513        0.868        0.125        0.131        1.269      NORM     4.62   

PK61D4

    -102730        -98134        1.27        1        11.451        0.054        0.175        3.221        5.857        4.813        0.437        0.344        1.227      NORM     14.05   

PK61D5

    -102730        -98134        1.40        1        8.244        0.131        0.387        3.363        4.589        2.958        0.234        0.462        1.352      NORM     11.15   

PK62D0

    -103411        -98020        1.11        1        4.732        0.064        0.169        3.358        2.409        1.873        0.139        0.311        1.082      NORM     5.12   

PK62D4

    -103411        -98020        1.14        1        3.963        0.061        0.228        3.377        2.479        1.223        0.134        0.127        1.105      NORM     4.38   

PK62D5

    -103412        -98020        1.12        1        4.851        0.120        0.309        3.396        2.909        1.366        0.111        0.465        1.086      NORM     5.27   

PK63D4

    -102924        -97690        0.58        1        10.367        0.020        0.342        3.349        6.430        3.282        0.304        0.351        0.562      NORM     5.82   

PK63D5

    -102924        -97690        0.41        1        13.942        0.013        0.091        3.277        6.846        6.667        0.306        0.122        0.396      NORM     5.52   

PK64D0

    -102621        -98858        1.13        1        2.080        0.025        0.100        3.381        1.482        0.451        0.064        0.083        1.108      NORM     2.30   

PK64D4

    -102622        -98858        1.14        1        1.425        0.012        0.066        3.374        1.171        0.157        0.048        0.049        1.111      NORM     1.58   

PK64D5

    -102622        -98859        1.23        1        0.798        0.010        0.060        3.387        0.689        0.064        0.014        0.031        1.198      NORM     0.96   

PK65D0

    -103617        -97729        1.05        1        0.801        0.022        0.083        3.391        0.600        0.122        0.043        0.037        1.012      NORM     0.81   

PK65D1

    -103617        -97728        1.04        1        3.850        0.026        0.094        3.363        2.894        0.634        0.280        0.042        1.000      NORM     3.85   

PK65D2

    -103617        -97728        1.08        1        3.225        0.038        0.139        3.354        2.301        0.646        0.193        0.084        1.047      NORM     3.38   

PK67D0

    -103812        -96436        1.71        1        11.522        0.098        0.238        3.067        6.988        3.527        0.552        0.455        1.650      NORM     19.01   

PK67D4

    -103812        -96436        1.79        1        5.352        0.089        0.264        3.061        2.987        1.744        0.160        0.461        1.728      NORM     9.25   

PK67D5

    -103812        -96436        1.67        1        5.359        0.076        0.214        3.018        2.655        1.666        0.125        0.913        1.613      NORM     8.65   

PK68D0

    -104368        -95201        0.81        1        3.456        0.086        0.224        3.215        2.180        0.903        0.106        0.268        0.782      NORM     2.70   

PK68D1

    -104368        -95201        1.01        1        3.292        0.103        0.259        3.211        2.099        0.849        0.096        0.247        0.980      NORM     3.23   

PK68D2

    -104368        -95201        1.15        1        2.591        0.077        0.190        3.194        1.576        0.728        0.072        0.214        1.114      NORM     2.89   

PK9D0

    -102028        -98641        1.22        1        2.920        —          —          —          1.825        0.795        0.105        0.194        1.181      NORM     3.45   

PK90D0

    -103230        -96606        1.51        1        12.167        0.361        0.689        3.459        6.579        4.009        0.198        1.381        1.456      NORM     17.71   

PK90D2

    -103230        -96605        1.58        1        —          —          —            —          —          —          —          1.526      NORM     —     

PK90D3

    -103230        -96605        1.33        1        7.359        0.190        0.442        3.459        4.172        2.404        0.140        0.644        1.289      NORM     9.48   
                             


3) FOOTWALL 30cm CUT COMPONENT

 

BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

BF100D0

     -107483         -92144         1.946         1.371         0.370         0.183         0.023               3.576         0.300   

BF112D0

     -107681         -91821         2.716         1.996         0.466         0.233         0.020         0.003         0.073         3.422         0.300   

BF128D0

     -107778         -92628         6.688         3.528         2.665         0.267         0.228               3.226         0.300   

BF128D1

     -107778         -92628         1.685         1.119         0.393         0.069         0.104         0.016         0.076         3.339         0.300   

BF2D2

     -107468         -91992         2.707         1.611         0.832         0.106         0.158         0.010         0.075            0.300   

BF2D3

     -107468         -91993         0.291         0.125         0.112         0.012         0.041         0.010         0.070            0.300   

BF201D0

     -107750         -92048         0.319         0.199         0.078         0.022         0.020         0.003         0.049         3.180         0.300   

BF202D0

     -107659         -92125         1.915         0.664         0.985         0.048         0.217         0.041         0.101         3.155         0.300   

BF205D0

     -107469         -91827         11.804         6.770         3.837         0.431         0.766         0.282         0.566         3.458         0.300   

BF206D0

     -107471         -92030         2.632         1.654         0.793         0.083         0.103         0.033         0.116         3.433         0.300   

BF276D0

     -107699         -92349         2.023         1.484         0.395         0.131         0.013         0.002         0.059         3.357         0.300   

BF279D0

     -108251         -92859         0.729         0.444         0.218         0.017         0.049         0.016         0.035         2.958         0.300   

BF287D0

     -108102         -93031         7.214         3.978         2.710         0.251         0.275         0.033         0.115         3.395         0.300   

BF29D0

     -108087         -92928         1.822         1.067         0.568         0.072         0.115         0.060         0.112            0.300   

BF38D0

     -107327         -91781         1.901         1.116         0.592         0.075         0.119         0.035         0.093            0.300   

BF4D0

     -107491         -91795         1.410         0.813         0.445         0.056         0.095                  0.300   

BF98D0

     -107837         -91911         2.777         2.015         0.396         0.335         0.030               3.412         0.300   

BF99D0

     -107609         -91866         0.494         0.330         0.118         0.026         0.020               3.593         0.300   

KF101D0

     -105181         -94115         3.347         2.009         1.152         0.119         0.067         0.045         0.171         3.390         0.300   

KF101D2

     -105181         -94115         2.385         1.374         0.868         0.084         0.060         0.034         0.132         3.468         0.300   

KF101D3

     -105181         -94115         0.690         0.475         0.152         0.032         0.032         0.008         0.067         3.346         0.300   

KF102D0

     -105872         -93234         3.110         1.762         1.064         0.121         0.163         0.069         0.178         3.303         0.300   

KF102D3

     -105872         -93235         8.950         5.929         2.535         0.377         0.109         0.020         0.090         3.304         0.300   

KF102D5

     -105872         -93235         9.992         6.968         2.305         0.617         0.101         0.036         0.096         3.277         0.300   

KF103D0

     -106734         -92126         4.491         2.528         1.661         0.147         0.155         0.033         0.116         3.363         0.300   

KF103D2

     -106734         -92126         5.827         4.355         0.955         0.430         0.088         0.038         0.105         3.328         0.300   

KF103D4

     -106734         -92126         1.111         0.844         0.186         0.069         0.011         0.007         0.069         3.442         0.300   

KF105D0

     -104980         -94721         4.633         2.407         1.855         0.179         0.191         0.024         0.095         3.281         0.300   

KF105D1

     -104980         -94721         7.572         5.052         1.859         0.426         0.236         0.061         0.124         3.042         0.300   

KF108D0

     -105432         -93468         0.658         0.459         0.161         0.027         0.011         0.003         0.071         3.419         0.300   

KF108D4

     -105431         -93468         0.304         0.211         0.071         0.013         0.010         0.003         0.070         3.358         0.300   

KF108D5

     -105432         -93468         1.775         1.251         0.369         0.119         0.037         0.012         0.089         3.329         0.300   

KF109D0

     -105833         -94571         3.074         1.571         1.060         0.075         0.367         0.106         0.204         3.358         0.300   

KF109D4

     -105834         -94571         3.861         2.208         1.199         0.086         0.369         0.094         0.186         3.226         0.300   

KF109D5

     -105834         -94571         1.951         1.103         0.651         0.066         0.131         0.056         0.175         3.302         0.300   

KF11D0

     -106336         -92737         2.875         1.714         0.882         0.113         0.166                  0.300   

KF112D0

     -106600         -93025         5.387         3.227         1.487         0.211         0.462         0.121         0.303         3.399         0.300   

KF112D5

     -106601         -93025         3.318         1.761         1.223         0.099         0.235         0.105         0.235         3.437         0.300   

KF112D6

     -106601         -93025         4.181         2.533         1.270         0.129         0.248         0.084         0.216         3.361         0.300   

KF118D0

     -104863         -95075         2.097         1.554         0.373         0.154         0.015         0.004         0.076         3.399         0.300   

KF118D3

     -104863         -95075         0.754         0.418         0.287         0.033         0.015         0.006         0.071         3.495         0.300   

KF119D0

     -105292         -93799         1.970         1.159         0.601         0.069         0.141         0.031         0.120         3.440         0.300   

KF119D3

     -105292         -93799         2.456         1.457         0.768         0.090         0.141         0.050         0.173         3.411         0.300   

KF12D0

     -104755         -94895         0.037         0.013         0.014         0.001         0.009                  0.300   

KF121D0

     -105513         -94027         0.651         0.355         0.250         0.021         0.025         0.024         0.103         3.393         0.300   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

KF123D0

     -104563         -94814         0.644         0.475         0.121         0.037         0.011         0.001         0.067         3.341         0.300   

KF123D2

     -104563         -94814         0.665         0.489         0.132         0.035         0.010         0.002         0.066         3.365         0.300   

KF125D2

     -107202         -92666         5.528         3.224         1.802         0.193         0.309         0.085         0.213         3.376         0.300   

KF125D3

     -107202         -92666         5.320         2.980         1.794         0.189         0.357         0.085         0.220         3.483         0.300   

KF126D0

     -108011         -93498         9.758         5.255         3.687         0.247         0.569         0.044         0.173         3.410         0.300   

KF126D1

     -108011         -93499         2.969         1.537         1.153         0.070         0.208         0.016         0.076         3.304         0.300   

KF126D2

     -108011         -93499         4.143         2.400         1.376         0.114         0.254         0.029         0.131         3.291         0.300   

KF127D0

     -107494         -94250         1.729         1.030         0.508         0.060         0.131         0.039         0.079         3.065         0.300   

KF127D3

     -107494         -94250         4.195         2.220         1.514         0.107         0.354         0.120         0.223         3.051         0.300   

KF127D4

     -107494         -94250         3.660         2.122         1.140         0.127         0.271         0.079         0.155         3.049         0.300   

KF13D0

     -105377         -94297         6.020         3.649         1.819         0.235         0.317                  0.300   

KF28D0

     -106019         -93031         3.140         1.878         0.961         0.123         0.179         0.029         0.073            0.300   

KF28D1

     -106019         -93030         1.540         0.908         0.477         0.060         0.095         0.030         0.060            0.300   

KF29D0

     -104991         -94552         3.714         2.236         1.129         0.145         0.203         0.014         0.036            0.300   

KF29D1

     -104991         -94551         3.131         1.897         0.946         0.122         0.166         0.010         0.016            0.300   

KF3D0

     -104715         -94151         0.020         0.003         0.009         0.001         0.008                  0.300   

KF32D0

     -108199         -94374         1.631         1.312         0.186         0.113         0.019         0.013         0.102            0.300   

KF32D4

     -108198         -94373         7.166         3.953         2.605         0.316         0.292         0.083         0.309            0.300   

KF32D5

     -108199         -94374         3.192         2.112         0.825         0.179         0.076         0.038         0.135            0.300   

KF34D0

     -107491         -94740         1.221         0.775         0.331         0.050         0.066         0.019         0.035            0.300   

KF34D4

     -107491         -94740         6.153         3.981         1.648         0.253         0.271         0.080         0.194            0.300   

KF34D5

     -107492         -94740         0.162         0.038         0.085         0.010         0.029         0.010         0.018            0.300   

KF37D0

     -105589         -94912         3.521         2.549         0.732         0.123         0.117         0.026         0.109            0.300   

KF37D4

     -105589         -94912         4.741         3.399         0.903         0.296         0.142         0.034         0.132            0.300   

KF37D5

     -105589         -94912         0.109         0.060         0.027         0.010         0.012         0.013         0.051            0.300   

KF38D5

     -104764         -95370         3.801         2.355         1.167         0.110         0.169         0.037         0.120            0.300   

KF38D6

     -104764         -95370         7.368         4.435         2.216         0.520         0.197         0.044         0.147            0.300   

KF39D0

     -105173         -95272         0.383         0.183         0.170         0.008         0.022         0.009         0.034         3.200         0.300   

KF39D4

     -105173         -95272         4.571         2.556         1.629         0.195         0.190         0.041         0.066         3.093         0.300   

KF39D5

     -105173         -95272         1.428         0.766         0.519         0.039         0.104         0.019         0.067         3.163         0.300   

KF4D0

     -106631         -92371         5.470         3.311         1.655         0.213         0.291                  0.300   

KF44RD0

     -106047         -93308         0.959         0.477         0.341         0.041         0.099         0.020         0.080         3.093         0.300   

KF46D0

     -105298         -94925         0.435         0.214         0.155         0.018         0.048         0.021         0.039            0.260   

KF5D0

     -105286         -93616         2.940         1.754         0.901         0.115         0.169                  0.300   

KF51D0

     -107146         -92366         3.631         2.180         1.107         0.142         0.202         0.031         0.085            0.300   

KF51D1

     -107146         -92365         8.086         4.920         2.435         0.315         0.416         0.068         0.186            0.300   

KF52D0

     -104648         -94573         1.383         0.797         0.437         0.055         0.094         0.098         0.184            0.300   

KF52D1

     -104648         -94573         0.855         0.472         0.280         0.034         0.069         0.010         0.029            0.300   

KF57D4

     -107741         -93141         3.931         2.081         1.235         0.583         0.031         0.014         0.070         3.055         0.300   

KF57D5

     -107741         -93141         5.480         3.022         1.845         0.105         0.508         0.082         0.193         3.127         0.300   

KF6D0

     -105088         -93999         1.818         1.084         0.557         0.071         0.106                  0.300   

KF60D0

     -107476         -92388         2.664         2.103         0.370         0.127         0.065         0.029         0.110         3.165         0.300   

KF60D4

     -107476         -92387         3.366         2.360         0.735         0.152         0.119         0.062         0.177         3.061         0.300   

KF60D5

     -107476         -92387         2.068         1.498         0.372         0.115         0.083         0.028         0.110         2.920         0.300   

KF63AD0

     -106326         -92385         5.428         3.629         1.310         0.136         0.353         0.070         0.207         3.459         0.300   

KF63D0

     -106328         -92383         6.716         4.596         1.438         0.147         0.535         0.077         0.249         3.329         0.295   

KF7D0

     -104337         -94759         8.263         5.028         2.488         0.322         0.425                  0.300   

KF72D0

     -105558         -93828         3.960         2.484         1.207         0.195         0.076         0.025         0.098         3.417         0.300   

KF72D4

     -105558         -93828         1.775         1.199         0.428         0.099         0.049         0.019         0.081         3.240         0.300   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

KF72D5

     -105558         -93828         6.820         4.700         1.532         0.331         0.257         0.063         0.168         3.427         0.300   

KF86D0

     -107063         -91923         3.403         2.467         0.658         0.256         0.022         0.006         0.079         3.336         0.300   

KF86D5

     -107063         -91923         2.978         2.033         0.686         0.228         0.031         0.009         0.082         3.330         0.300   

KF87D0

     -106620         -92642         0.464         0.237         0.160         0.019         0.048         0.005         0.080         3.276         0.300   

KF87D4

     -106620         -92642         0.905         0.503         0.295         0.036         0.071         0.006         0.077         3.360         0.300   

KF87D6

     -106620         -92642         12.077         7.377         3.623         0.470         0.607         0.012         0.090         3.393         0.300   

KF88D0

     -106217         -95630         3.924         2.377         0.836         0.108         0.604         0.080         0.161         3.069         0.300   

KF90D0

     -104847         -94364         3.784         2.277         1.151         0.148         0.208         0.005         0.090         3.416         0.300   

KF90D4

     -104847         -94364         6.558         3.980         1.979         0.256         0.343         0.007         0.091         3.277         0.300   

KF90D5

     -104847         -94365         18.430         11.282         5.517         0.716         0.914         0.017         0.112         3.390         0.300   

KF97D0

     -108329         -95775         1.995         1.635         0.210         0.137         0.012         0.009         0.034         3.075         0.300   

KF97D4

     -108329         -95775         4.613         2.468         1.682         0.164         0.299         0.072         0.181         3.132         0.300   

KF97D5

     -108330         -95775         1.162         0.896         0.195         0.053         0.018         0.009         0.045         3.183         0.300   

PK118AD0

     -102110         -98373         9.649         5.937         2.701         0.340         0.672         0.076         0.230         3.378         0.300   

PK118D2

     -102111         -98370         13.165         6.940         4.932         0.340         0.952         0.036         0.157         3.451         0.300   

PK120D0

     -104304         -96051         3.044         1.818         0.970         0.053         0.202         0.034         0.103         3.192         0.300   

PK120D2

     -104304         -96051         3.754         2.050         1.289         0.086         0.329         0.086         0.189         3.285         0.300   

PK13D0

     -102422         -97919         0.020         0.003         0.009         0.001         0.008                  0.300   

PK14D0

     -104150         -95159         6.870         4.172         2.073         0.268         0.358                  0.300   

PK18D0

     -102697         -97142         1.725         1.007         0.539         0.068         0.110                  0.300   

PK20D0

     -102635         -97548         0.020         0.003         0.009         0.001         0.008                  0.298   

PK206D0

     -105761         -97110         15.549         7.729         6.381         0.509         0.930         0.174         0.479         3.388         0.300   

PK206D5

     -105761         -97110         7.110         2.608         4.173         0.119         0.211         0.025         0.117         3.311         0.300   

PK206D6

     -105761         -97110         2.587         1.621         0.799         0.096         0.070         0.019         0.087         3.316         0.300   

PK207D0

     -104645         -99121         0.803         0.622         0.107         0.064         0.010         0.002         0.024         3.042         0.300   

PK207D5

     -104645         -99121         1.146         0.724         0.335         0.047         0.040         0.008         0.039         3.072         0.300   

PK21D0

     -102530         -97988         0.177         0.096         0.057         0.007         0.017                  0.300   

PK211D0

     -102070         -98882         0.042         0.010         0.012         0.010         0.010         0.003         0.053         3.338         0.299   

PK211D4

     -102070         -98882         0.116         0.042         0.046         0.010         0.017         0.005         0.058         3.316         0.300   

PK211D6

     -102070         -98882         0.312         0.156         0.121         0.008         0.028         0.008         0.084         3.415         0.300   

PK213D0

     -104285         -95002         0.972         0.738         0.167         0.058         0.010         0.002         0.075         3.334         0.300   

PK213D3

     -104285         -95003         1.017         0.739         0.230         0.038         0.011         0.001         0.073         3.480         0.300   

PK217D2

     -103859         -95638         1.130         0.634         0.442         0.034         0.021         0.003         0.071         3.421         0.300   

PK217D3

     -103859         -95638         0.070         0.017         0.033         0.010         0.010         0.003         0.067         3.410         0.300   

PK22D0

     -102369         -98351         3.220         1.947         0.974         0.125         0.173                  0.300   

PK24D0

     -101923         -99066         0.020         0.003         0.009         0.001         0.008                  0.300   

PK245D0

     -103353         -98625         9.961         4.767         4.282         0.226         0.686         0.133         0.268         3.506         0.300   

PK245D4

     -103353         -98624         24.793         15.002         8.198         0.874         0.719         0.114         0.237         3.739         0.300   

PK245D5

     -103353         -98624         39.921         26.052         11.593         1.734         0.542         0.068         0.173         3.773         0.300   

PK246D0

     -104934         -96011         1.360         0.762         0.487         0.047         0.064         0.018         0.094         3.397         0.300   

PK246D4

     -104934         -96012         0.843         0.495         0.296         0.026         0.026         0.009         0.083         3.371         0.300   

PK246D6

     -104934         -96012         4.070         2.591         1.280         0.131         0.068         0.017         0.098         3.382         0.300   

PK248D0

     -103854         -95779         7.343         4.398         2.501         0.211         0.233         0.072         0.197         3.489         0.300   

PK248D5

     -103854         -95779         1.415         0.973         0.355         0.068         0.020         0.010         0.076         3.361         0.300   

PK248D6

     -103853         -95778         16.684         11.103         4.420         1.053         0.107         0.039         0.136         3.444         0.300   

PK251D0

     -103006         -98413         5.173         4.445         0.370         0.346         0.011         0.001         0.080         3.270         0.300   

PK251D3

     -103007         -98413         2.431         2.083         0.158         0.179         0.010         0.000         0.072         3.290         0.300   

PK252D0

     -104208         -95464         0.976         0.743         0.169         0.052         0.010         0.001         0.067         3.307         0.300   

PK252D3

     -104209         -95464         6.875         3.413         2.848         0.200         0.415         0.245         0.462         3.417         0.300   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

PK253D0

     -102948         -96574         2.660         2.398         0.045         0.207         0.010         0.001         0.079         3.452         0.300   

PK253D2

     -102948         -96574         2.487         2.165         0.073         0.231         0.018         0.002         0.079         3.407         0.300   

PK253D3

     -102948         -96574         2.875         2.527         0.084         0.250         0.013         0.002         0.080         3.334         0.300   

PK255D0

     -102355         -98054         0.648         0.465         0.125         0.047         0.011         0.002         0.073         3.396         0.300   

PK256D0

     -103716         -96780         7.139         4.431         2.344         0.199         0.165         0.051         0.189         3.349         0.300   

PK256D3

     -103716         -96780         8.625         5.901         2.241         0.209         0.275         0.064         0.179         3.397         0.300   

PK259D0

     -102430         -97688         0.125         0.090         0.013         0.012         0.010         0.000         0.060         3.510         0.300   

PK260D0

     -103880         -98386         1.054         0.798         0.187         0.057         0.011         0.005         0.059         3.249         0.300   

PK260D5

     -103880         -98386         0.922         0.658         0.214         0.037         0.013         0.004         0.076         3.342         0.300   

PK260D6

     -103880         -98386         2.185         1.472         0.588         0.092         0.033         0.007         0.052         3.152         0.300   

PK261D2

     -102560         -97726         2.872         1.596         0.980         0.156         0.140         0.046         0.155         3.192         0.300   

PK261D3

     -102560         -97726         3.819         2.378         1.092         0.150         0.199         0.039         0.154         3.218         0.300   

PK27D0

     -103409         -96416         0.020         0.003         0.009         0.001         0.008                  0.300   

PK28D0

     -104597         -95319         0.020         0.003         0.009         0.001         0.008                  0.300   

PK29D1

     -103175         -97311         2.356         1.406         0.722         0.092         0.136                  0.300   

PK3D0

     -102497         -96899         6.774         4.122         2.039         0.264         0.349                  0.300   

PK30D0

     -103008         -98024         0.831         0.497         0.253         0.032         0.049                  0.300   

PK30D1

     -103008         -98024         0.723         0.422         0.225         0.028         0.048                  0.300   

PK31D0

     -103534         -96746         3.465         2.077         1.058         0.136         0.194                  0.300   

PK39D0

     -104032         -95680         0.692         0.398         0.218         0.027         0.048         0.015         0.019            0.300   

PK39D1

     -104032         -95680         2.892         1.752         0.874         0.113         0.154         0.010         0.024            0.300   

PK4D0

     -102574         -96986         0.020         0.003         0.009         0.001         0.008                  0.300   

PK41D0

     -103341         -97521         5.597         3.389         1.693         0.218         0.297         0.010         0.014            0.300   

PK41D1

     -103341         -97520         1.348         0.808         0.410         0.052         0.077         0.010         0.013            0.300   

PK42D0

     -102862         -97542         0.121         0.061         0.041         0.005         0.015         0.010         0.011            0.300   

PK42D1

     -102862         -97541         0.701         0.400         0.223         0.028         0.051         0.010         0.011            0.300   

PK45D0

     -102365         -98732         0.158         0.085         0.051         0.006         0.016         0.010         0.010            0.300   

PK45D1

     -102365         -98732         1.193         0.693         0.374         0.047         0.079         0.010         0.013            0.300   

PK51D0

     -104417         -96728         1.265         0.927         0.265         0.059         0.015         0.007         0.090            0.300   

PK51D4

     -104417         -96727         0.453         0.317         0.100         0.013         0.022         0.007         0.085            0.300   

PK51D5

     -104417         -96727         2.090         1.457         0.463         0.144         0.025         0.010         0.093            0.300   

PK52D0

     -103410         -97182         3.364         2.594         0.409         0.343         0.018         0.011         0.086            0.300   

PK52D4

     -103410         -97181         0.240         0.168         0.055         0.010         0.008         0.007         0.062            0.300   

PK52D5

     -103410         -97181         0.484         0.353         0.109         0.013         0.009         0.007         0.069            0.300   

PK54D0

     -104276         -97857         6.457         3.376         2.151         0.133         0.797         0.125         0.371            0.300   

PK54D4

     -104276         -97856         1.609         0.937         0.463         0.049         0.160         0.036         0.135            0.300   

PK54D5

     -104276         -97856         4.741         2.318         1.663         0.127         0.634         0.103         0.279            0.300   

PK55D0

     -102662         -98653         0.539         0.357         0.130         0.022         0.031         0.014         0.095            0.300   

PK55D4

     -102662         -98652         5.289         4.122         0.743         0.398         0.025         0.009         0.088            0.300   

PK55D5

     -102662         -98652         2.924         2.301         0.383         0.218         0.022         0.008         0.078            0.300   

PK56D0

     -103803         -99347         0.207         0.132         0.050         0.010         0.016         0.011         0.097            0.300   

PK56D4

     -103803         -99347         1.036         0.783         0.184         0.039         0.030         0.010         0.092            0.300   

PK56D5

     -103803         -99347         0.511         0.299         0.107         0.022         0.082         0.010         0.085            0.300   

PK57D0

     -103447         -99866         3.749         2.767         0.692         0.272         0.019         0.008         0.073            0.300   

PK57D4

     -103447         -99866         2.777         2.014         0.573         0.159         0.030         0.014         0.086            0.300   

PK57D5

     -103447         -99866         0.781         0.499         0.237         0.027         0.018         0.011         0.062            0.300   

PK59D0

     -102548         -98414         0.910         0.660         0.199         0.039         0.011         0.003         0.059         3.443         0.300   

PK59D4

     -102548         -98414         2.294         1.610         0.537         0.127         0.019         0.005         0.060         3.393         0.300   

PK59D5

     -102548         -98415         1.409         0.873         0.492         0.039         0.005         0.004         0.064         3.381         0.300   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

PK60D0

     -102593         -99294         0.103         0.051         0.032         0.010         0.010         0.004         0.054         3.282         0.300   

PK60D4

     -102593         -99295         0.991         0.683         0.222         0.065         0.021         0.004         0.062         3.384         0.300   

PK60D5

     -102593         -99295         0.853         0.615         0.183         0.044         0.011         0.003         0.059         3.321         0.300   

PK61D0

     -102730         -98133         15.840         10.448         4.270         0.982         0.139         0.015         0.052         3.197         0.300   

PK61D4

     -102730         -98134         3.519         1.712         1.472         0.082         0.253         0.062         0.164         3.240         0.300   

PK61D5

     -102730         -98134         5.977         3.688         1.903         0.321         0.064         0.014         0.076         3.293         0.300   

PK62D0

     -103411         -98020         4.069         2.163         1.566         0.098         0.242         0.081         0.200         3.243         0.300   

PK62D4

     -103411         -98020         0.526         0.392         0.096         0.028         0.009         0.005         0.048         3.162         0.300   

PK62D5

     -103412         -98020         0.269         0.184         0.056         0.018         0.012         0.004         0.027         3.152         0.300   

PK63D4

     -102924         -97690         6.909         2.777         3.087         0.129         0.917         0.020         0.131         3.159         0.300   

PK63D5

     -102924         -97690         0.111         0.034         0.057         0.010         0.010         0.003         0.032         3.154         0.300   

PK64D0

     -102621         -98858         3.156         1.667         1.344         0.124         0.020         0.006         0.058         3.266         0.300   

PK64D4

     -102622         -98858         0.183         0.100         0.051         0.010         0.022         0.004         0.055         3.282         0.300   

PK64D5

     -102622         -98859         0.848         0.354         0.405         0.020         0.070         0.013         0.041         3.184         0.300   

PK65D0

     -103617         -97729         1.803         1.440         0.211         0.141         0.010         0.007         0.040         3.163         0.300   

PK65D1

     -103617         -97728         1.846         1.414         0.276         0.145         0.011         0.004         0.046         3.245         0.300   

PK65D2

     -103617         -97728         1.814         1.323         0.360         0.119         0.011         0.009         0.063         3.218         0.300   

PK67D0

     -103812         -96436         1.013         0.412         0.461         0.018         0.122         0.041         0.072         2.950         0.300   

PK67D4

     -103812         -96436         0.077         0.020         0.027         0.010         0.020         0.007         0.034         2.919         0.300   

PK67D5

     -103812         -96436         2.088         0.984         0.744         0.038         0.322         0.041         0.115         2.940         0.300   

PK68D0

     -104368         -95201         2.014         1.544         0.313         0.136         0.022         0.009         0.058         3.173         0.300   

PK68D1

     -104368         -95201         0.650         0.339         0.268         0.016         0.027         0.011         0.069         3.183         0.300   

PK68D2

     -104368         -95201         0.070         0.020         0.020         0.010         0.020         0.004         0.056         3.124         0.300   

PK90D0

     -103230         -96606         1.779         0.979         0.647         0.038         0.114         0.038         0.112         3.247         0.300   

PK90D3

     -103230         -96605         6.528         4.043         1.936         0.183         0.366         0.067         0.258         3.289         0.300   


4) FOOTWALL 45cm CUT COMPONENT

 

BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

BF100D0

     -107483         -92144         1.357         0.930         0.281         0.125         0.022               3.571         0.450   

BF112D0

     -107681         -91821         1.836         1.337         0.320         0.159         0.020         0.002         0.068         3.399         0.450   

BF128D0

     -107778         -92628         5.004         2.618         2.010         0.199         0.177               3.209         0.450   

BF128D1

     -107778         -92628         2.165         1.225         0.678         0.070         0.192         0.029         0.096         3.267         0.450   

BF2D2

     -107468         -91992         2.148         1.267         0.665         0.085         0.131         0.010         0.070            0.450   

BF2D3

     -107468         -91993         0.514         0.262         0.178         0.021         0.052         0.016         0.080            0.450   

BF201D0

     -107750         -92048         0.236         0.140         0.059         0.018         0.020         0.003         0.049         3.181         0.450   

BF202D0

     -107659         -92125         1.296         0.449         0.664         0.035         0.148         0.029         0.083         3.178         0.450   

BF205D0

     -107469         -91827         9.527         5.384         3.154         0.350         0.640         0.240         0.489         3.397         0.450   

BF206D0

     -107471         -92030         3.698         1.896         1.524         0.123         0.155         0.080         0.204         3.450         0.450   

BF276D0

     -107699         -92349         1.635         1.201         0.325         0.097         0.012         0.002         0.061         3.375         0.450   

BF279D0

     -108251         -92859         2.424         1.343         0.806         0.068         0.207         0.049         0.093         2.940         0.450   

BF287D0

     -108102         -93031         7.058         3.659         2.873         0.218         0.307         0.068         0.173         3.302         0.450   

BF29D0

     -108087         -92928         1.505         0.872         0.474         0.060         0.100         0.048         0.095            0.390   

BF38D0

     -107327         -91781         1.348         0.775         0.427         0.053         0.092         0.026         0.073            0.450   

BF4D0

     -107491         -91795         2.326         1.377         0.718         0.091         0.139                  0.450   

BF98D0

     -107837         -91911         1.874         1.350         0.271         0.227         0.027               3.404         0.450   

BF99D0

     -107609         -91866         0.354         0.227         0.086         0.021         0.020               3.599         0.450   

KF101D0

     -105181         -94115         3.279         1.921         1.167         0.105         0.086         0.035         0.138         3.340         0.450   

KF101D2

     -105181         -94115         1.957         1.110         0.724         0.064         0.059         0.030         0.116         3.420         0.450   

KF101D3

     -105181         -94115         0.486         0.327         0.109         0.024         0.026         0.008         0.057         3.274         0.450   

KF102D0

     -105872         -93234         2.728         1.518         0.956         0.112         0.143         0.063         0.173         3.328         0.450   

KF102D3

     -105872         -93235         7.310         4.829         2.075         0.280         0.125         0.021         0.093         3.325         0.450   

KF102D5

     -105872         -93235         7.680         5.322         1.809         0.472         0.077         0.027         0.087         3.307         0.450   

KF103D0

     -106734         -92126         5.606         2.947         2.299         0.149         0.212         0.039         0.137         3.374         0.450   

KF103D2

     -106734         -92126         3.965         2.942         0.672         0.290         0.062         0.026         0.098         3.375         0.450   

KF103D4

     -106734         -92126         0.783         0.573         0.150         0.049         0.011         0.006         0.075         3.460         0.450   

KF105D0

     -104980         -94721         3.515         1.780         1.436         0.130         0.168         0.021         0.097         3.336         0.450   

KF105D1

     -104980         -94721         6.358         4.111         1.718         0.328         0.201         0.055         0.115         3.053         0.450   

KF108D0

     -105432         -93468         0.474         0.317         0.126         0.021         0.010         0.004         0.071         3.409         0.450   

KF108D4

     -105431         -93468         0.223         0.145         0.051         0.012         0.015         0.004         0.072         3.368         0.450   

KF108D5

     -105432         -93468         1.232         0.843         0.279         0.082         0.028         0.010         0.082         3.340         0.450   

KF109D0

     -105833         -94571         2.076         1.057         0.713         0.054         0.252         0.072         0.145         3.262         0.450   

KF109D4

     -105834         -94571         2.600         1.481         0.806         0.061         0.253         0.064         0.134         3.179         0.450   

KF109D5

     -105834         -94571         1.324         0.742         0.441         0.048         0.094         0.039         0.127         3.228         0.450   

KF11D0

     -106336         -92737         2.528         1.506         0.776         0.099         0.147                  0.450   

KF112D0

     -106600         -93025         5.722         3.306         1.714         0.213         0.487         0.135         0.320         3.396         0.450   

KF112D5

     -106601         -93025         2.744         1.454         1.009         0.079         0.203         0.087         0.200         3.412         0.450   

KF112D6

     -106601         -93025         2.967         1.797         0.893         0.094         0.183         0.061         0.164         3.299         0.450   

KF118D0

     -104863         -95075         2.068         1.412         0.464         0.120         0.072         0.015         0.091         3.342         0.450   

KF118D3

     -104863         -95075         1.912         1.031         0.709         0.065         0.107         0.036         0.129         3.436         0.450   

KF119D0

     -105292         -93799         2.126         1.206         0.662         0.065         0.192         0.031         0.120         3.440         0.450   

KF119D3

     -105292         -93799         3.415         1.600         1.527         0.086         0.202         0.066         0.188         3.347         0.450   

KF12D0

     -104755         -94895         0.031         0.010         0.012         0.001         0.009                  0.450   

KF121D0

     -105513         -94027         0.505         0.267         0.195         0.017         0.027         0.020         0.094         3.398         0.450   

KF123D0

     -104563         -94814         0.445         0.320         0.086         0.028         0.011         0.002         0.060         3.284         0.450   

KF123D2

     -104563         -94814         0.458         0.329         0.092         0.026         0.010         0.002         0.058         3.308         0.450   

KF125D2

     -107202         -92666         3.875         2.253         1.267         0.135         0.220         0.061         0.162         3.314         0.450   

KF125D3

     -107202         -92666         3.834         2.145         1.295         0.131         0.263         0.066         0.171         3.388         0.450   

KF126D0

     -108011         -93498         6.699         3.601         2.533         0.172         0.394         0.031         0.127         3.322         0.450   

KF126D1

     -108011         -93499         1.996         1.028         0.775         0.050         0.142         0.011         0.058         3.218         0.450   

KF126D2

     -108011         -93499         3.052         1.759         1.016         0.085         0.192         0.023         0.102         3.202         0.450   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

KF127D0

     -107494         -94250         1.954         1.115         0.623         0.058         0.158         0.049         0.092         3.051         0.450   

KF127D3

     -107494         -94250         5.817         3.078         2.094         0.143         0.502         0.161         0.289         3.041         0.450   

KF127D4

     -107494         -94250         5.528         3.058         1.859         0.161         0.450         0.134         0.247         3.042         0.450   

KF13D0

     -105377         -94297         10.010         6.103         3.008         0.390         0.509                  0.450   

KF28D0

     -106019         -93031         2.605         1.549         0.802         0.102         0.153         0.030         0.076            0.450   

KF28D1

     -106019         -93030         1.033         0.606         0.321         0.040         0.066         0.026         0.064            0.450   

KF29D0

     -104991         -94552         2.482         1.492         0.755         0.097         0.138         0.013         0.031            0.450   

KF29D1

     -104991         -94551         2.094         1.266         0.633         0.081         0.114         0.010         0.017            0.450   

KF3D0

     -104715         -94151         0.020         0.003         0.009         0.001         0.008                  0.450   

KF32D0

     -108199         -94374         1.903         1.432         0.317         0.095         0.059         0.023         0.121            0.450   

KF32D4

     -108198         -94373         5.833         3.263         2.099         0.236         0.235         0.067         0.252            0.450   

KF32D5

     -108199         -94374         3.778         2.214         1.255         0.167         0.143         0.060         0.176            0.450   

KF34D0

     -107491         -94740         1.678         1.040         0.480         0.062         0.096         0.026         0.050            0.450   

KF34D5

     -107492         -94740         0.202         0.060         0.102         0.010         0.029         0.011         0.021            0.450   

KF37D0

     -105589         -94912         2.889         2.007         0.641         0.088         0.153         0.029         0.110            0.450   

KF37D4

     -105589         -94912         3.512         2.458         0.715         0.208         0.130         0.031         0.117            0.450   

KF37D5

     -105589         -94912         0.120         0.069         0.028         0.009         0.013         0.013         0.054            0.450   

KF38D5

     -104764         -95370         3.696         2.170         1.224         0.107         0.195         0.051         0.149            0.450   

KF38D6

     -104764         -95370         6.073         3.588         1.881         0.382         0.222         0.051         0.164            0.450   

KF39D0

     -105173         -95272         0.272         0.129         0.116         0.009         0.018         0.008         0.030         3.184         0.450   

KF39D4

     -105173         -95272         3.063         1.711         1.089         0.133         0.130         0.029         0.051         3.083         0.450   

KF39D5

     -105173         -95272         0.974         0.523         0.349         0.029         0.073         0.015         0.053         3.139         0.450   

KF4D0

     -106631         -92371         5.350         3.237         1.619         0.209         0.285                  0.450   

KF5D0

     -105286         -93616         2.414         1.439         0.741         0.095         0.140                  0.450   

KF51D0

     -107146         -92366         3.003         1.793         0.920         0.118         0.172         0.031         0.080            0.398   

KF51D1

     -107146         -92365         6.035         3.658         1.824         0.235         0.318         0.063         0.150            0.419   

KF52D0

     -104648         -94573         0.988         0.554         0.320         0.040         0.075         0.085         0.159            0.450   

KF52D1

     -104648         -94573         0.637         0.338         0.215         0.026         0.058         0.012         0.046            0.450   

KF57D4

     -107741         -93141         2.636         1.392         0.828         0.392         0.024         0.012         0.058         2.998         0.450   

KF57D5

     -107741         -93141         3.801         2.098         1.286         0.071         0.346         0.059         0.146         3.072         0.450   

KF6D0

     -105088         -93999         1.490         0.887         0.457         0.058         0.088                  0.367   

KF60D0

     -107476         -92388         1.851         1.442         0.269         0.088         0.052         0.025         0.101         3.134         0.450   

KF60D4

     -107476         -92387         2.380         1.650         0.530         0.105         0.095         0.047         0.147         3.011         0.450   

KF60D5

     -107476         -92387         1.833         1.352         0.311         0.105         0.065         0.024         0.099         2.956         0.450   

KF63AD0

     -106326         -92385         5.122         3.290         1.327         0.126         0.379         0.085         0.224         3.466         0.445   

KF7D0

     -104337         -94759         7.434         4.519         2.241         0.290         0.385                  0.385   

KF72D0

     -105558         -93828         3.566         2.241         1.075         0.168         0.083         0.026         0.102         3.373         0.450   

KF72D4

     -105558         -93828         1.362         0.875         0.367         0.067         0.052         0.016         0.079         3.270         0.450   

KF72D5

     -105558         -93828         4.919         3.365         1.142         0.231         0.180         0.045         0.137         3.415         0.450   

KF86D0

     -107063         -91923         2.309         1.656         0.458         0.174         0.021         0.006         0.074         3.305         0.450   

KF86D5

     -107063         -91923         2.037         1.366         0.489         0.155         0.027         0.008         0.078         3.323         0.450   

KF87D0

     -106620         -92642         0.336         0.161         0.121         0.014         0.041         0.006         0.081         3.266         0.450   

KF87D4

     -106620         -92642         0.635         0.339         0.213         0.026         0.057         0.007         0.078         3.362         0.450   

KF87D6

     -106620         -92642         8.077         4.921         2.428         0.314         0.413         0.011         0.087         3.396         0.450   

KF88D0

     -106217         -95630         2.629         1.588         0.560         0.075         0.406         0.055         0.116         3.055         0.450   

KF90D0

     -104847         -94364         2.555         1.521         0.785         0.100         0.149         0.005         0.097         3.401         0.450   

KF90D4

     -104847         -94364         4.396         2.656         1.332         0.172         0.237         0.006         0.091         3.278         0.450   

KF90D5

     -104847         -94365         12.310         7.525         3.689         0.478         0.617         0.012         0.104         3.359         0.450   

KF97D0

     -108329         -95775         1.351         1.101         0.144         0.095         0.011         0.007         0.032         3.073         0.450   

KF97D4

     -108329         -95775         3.089         1.649         1.125         0.113         0.202         0.050         0.131         3.113         0.450   

KF97D5

     -108330         -95775         0.801         0.611         0.135         0.039         0.015         0.008         0.040         3.134         0.450   

PK118AD0

     -102110         -98373         6.635         4.126         1.823         0.233         0.452         0.051         0.176         3.374         0.450   

PK118D2

     -102111         -98370         8.909         4.693         3.337         0.233         0.646         0.025         0.127         3.418         0.450   

PK120D0

     -104304         -96051         2.055         1.226         0.652         0.039         0.138         0.024         0.079         3.168         0.450   

PK120D2

     -104304         -96051         2.520         1.373         0.863         0.060         0.223         0.059         0.136         3.226         0.450   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

PK13D0

     -102422         -97919         0.020         0.003         0.009         0.001         0.008                  0.430   

PK14D0

     -104150         -95159         9.210         5.611         2.770         0.359         0.471                  0.450   

PK18D0

     -102697         -97142         2.451         1.454         0.756         0.096         0.145                  0.432   

PK206D0

     -105761         -97110         14.734         7.426         5.952         0.464         0.893         0.158         0.413         3.375         0.450   

PK206D5

     -105761         -97110         5.197         1.883         3.069         0.088         0.157         0.020         0.105         3.317         0.450   

PK206D6

     -105761         -97110         2.601         1.573         0.857         0.084         0.086         0.020         0.089         3.321         0.450   

PK21D0

     -102530         -97988         0.124         0.065         0.041         0.005         0.014                  0.450   

PK211D6

     -102070         -98882         0.226         0.108         0.086         0.009         0.023         0.007         0.073         3.381         0.450   

PK213D0

     -104285         -95002         0.677         0.500         0.125         0.042         0.010         0.001         0.076         3.357         0.450   

PK213D3

     -104285         -95003         0.700         0.499         0.162         0.029         0.010         0.001         0.073         3.500         0.450   

PK217D2

     -103859         -95638         0.821         0.429         0.348         0.026         0.019         0.003         0.072         3.430         0.450   

PK217D3

     -103859         -95638         0.073         0.018         0.035         0.010         0.010         0.003         0.068         3.410         0.450   

PK22D0

     -102369         -98351         2.153         1.299         0.652         0.084         0.118                  0.450   

PK24D0

     -101923         -99066         0.020         0.003         0.009         0.001         0.008                  0.450   

PK245D0

     -103353         -98625         8.721         4.266         3.590         0.216         0.650         0.122         0.253         3.500         0.450   

PK245D4

     -103353         -98624         24.206         14.146         8.254         0.842         0.964         0.196         0.360         3.759         0.450   

PK245D5

     -103353         -98624         32.162         20.469         9.558         1.639         0.496         0.060         0.156         3.774         0.450   

PK246D0

     -104934         -96011         1.733         1.101         0.476         0.094         0.063         0.020         0.095         3.417         0.450   

PK246D4

     -104934         -96012         1.463         0.729         0.577         0.035         0.122         0.027         0.111         3.384         0.450   

PK246D6

     -104934         -96012         4.641         2.704         1.605         0.123         0.209         0.054         0.146         3.392         0.450   

PK248D0

     -103854         -95779         4.988         2.971         1.713         0.144         0.160         0.051         0.157         3.458         0.450   

PK248D5

     -103854         -95779         1.915         0.961         0.835         0.061         0.059         0.012         0.080         3.352         0.450   

PK248D6

     -103853         -95778         11.164         7.407         2.976         0.705         0.075         0.028         0.115         3.452         0.450   

PK251D0

     -103006         -98413         3.521         3.021         0.254         0.235         0.011         0.001         0.074         3.270         0.450   

PK251D3

     -103007         -98413         1.699         1.443         0.122         0.123         0.010         0.000         0.068         3.260         0.450   

PK252D0

     -104208         -95464         0.710         0.524         0.135         0.038         0.013         0.002         0.063         3.266         0.450   

PK252D3

     -104209         -95464         4.661         2.313         1.928         0.137         0.283         0.167         0.335         3.388         0.450   

PK253D0

     -102948         -96574         2.799         2.499         0.045         0.240         0.015         0.002         0.081         3.458         0.450   

PK253D2

     -102948         -96574         2.945         2.582         0.082         0.262         0.020         0.003         0.080         3.425         0.450   

PK253D3

     -102948         -96574         2.340         2.056         0.070         0.202         0.012         0.002         0.079         3.328         0.450   

PK255D0

     -102355         -98054         0.457         0.315         0.097         0.035         0.010         0.002         0.073         3.408         0.450   

PK256D0

     -103716         -96780         4.799         2.964         1.586         0.136         0.113         0.036         0.146         3.312         0.450   

PK256D3

     -103716         -96780         8.309         5.700         2.027         0.173         0.409         0.104         0.198         3.381         0.450   

PK259D0

     -102430         -97688         0.119         0.085         0.012         0.011         0.010         0.000         0.059         3.497         0.450   

PK260D0

     -103880         -98386         0.723         0.537         0.133         0.042         0.011         0.005         0.049         3.186         0.450   

PK260D5

     -103880         -98386         0.672         0.470         0.161         0.029         0.012         0.004         0.062         3.254         0.450   

PK260D6

     -103880         -98386         1.475         0.986         0.399         0.064         0.025         0.007         0.046         3.136         0.450   

PK261D2

     -102560         -97726         1.931         1.070         0.657         0.107         0.097         0.031         0.114         3.157         0.450   

PK261D3

     -102560         -97726         2.562         1.591         0.731         0.104         0.136         0.027         0.112         3.154         0.450   

PK27D0

     -103409         -96416         0.020         0.003         0.009         0.001         0.008                  0.450   

PK28D0

     -104597         -95319         1.791         1.082         0.541         0.070         0.098                  0.450   

PK29D1

     -103175         -97311         1.577         0.938         0.484         0.062         0.093                  0.450   

PK3D0

     -102497         -96899         4.523         2.749         1.362         0.176         0.235                  0.450   

PK30D0

     -103008         -98024         0.561         0.332         0.172         0.022         0.036                  0.450   

PK30D1

     -103008         -98024         0.489         0.282         0.153         0.019         0.035                  0.450   

PK31D0

     -103534         -96746         6.105         3.701         1.844         0.238         0.321                  0.450   

PK39D0

     -104032         -95680         0.468         0.266         0.148         0.018         0.035         0.013         0.016            0.450   

PK39D1

     -104032         -95680         1.935         1.169         0.585         0.075         0.106         0.010         0.022            0.450   

PK4D0

     -102574         -96986         0.020         0.003         0.009         0.001         0.008                  0.450   

PK41D0

     -103341         -97521         6.480         3.932         1.956         0.253         0.339         0.013         0.019            0.450   

PK41D1

     -103341         -97520         0.905         0.539         0.277         0.035         0.054         0.010         0.012            0.450   

PK42D0

     -102862         -97542         0.098         0.048         0.034         0.004         0.013         0.010         0.011            0.388   

PK42D1

     -102862         -97541         0.546         0.310         0.174         0.022         0.041         0.010         0.011            0.388   

PK45D0

     -102365         -98732         0.112         0.058         0.037         0.004         0.013         0.010         0.010            0.450   

PK45D1

     -102365         -98732         0.802         0.463         0.252         0.032         0.055         0.010         0.016            0.450   


BHID

   X      Y      PGE      PT      PD      RH      AU      CU      NI      SG      TRUETHK  

PK51D0

     -104417         -96728         0.899         0.637         0.206         0.043         0.013         0.007         0.086            0.450   

PK51D4

     -104417         -96727         0.369         0.241         0.094         0.012         0.021         0.008         0.084            0.450   

PK51D5

     -104417         -96727         1.453         0.995         0.335         0.100         0.024         0.009         0.090            0.450   

PK52D0

     -103410         -97182         2.274         1.746         0.281         0.232         0.014         0.010         0.073            0.450   

PK52D4

     -103410         -97181         0.233         0.165         0.050         0.010         0.007         0.007         0.057            0.430   

PK52D5

     -103410         -97181         0.414         0.288         0.104         0.012         0.010         0.008         0.067            0.450   

PK54D0

     -104276         -97857         4.755         2.554         1.543         0.104         0.554         0.091         0.281            0.450   

PK54D4

     -104276         -97856         1.244         0.761         0.334         0.037         0.112         0.027         0.113            0.450   

PK54D5

     -104276         -97856         3.552         1.740         1.247         0.101         0.463         0.078         0.228            0.450   

PK55D0

     -102662         -98653         0.825         0.498         0.240         0.027         0.060         0.017         0.109            0.450   

PK55D4

     -102662         -98652         5.771         4.472         0.832         0.439         0.029         0.008         0.087            0.450   

PK55D5

     -102662         -98652         2.227         1.743         0.294         0.168         0.022         0.008         0.078            0.450   

PK56D0

     -103803         -99347         0.194         0.122         0.046         0.010         0.016         0.010         0.095            0.450   

PK56D4

     -103803         -99347         0.977         0.725         0.184         0.036         0.032         0.011         0.089            0.450   

PK56D5

     -103803         -99347         0.500         0.294         0.118         0.018         0.071         0.010         0.085            0.450   

PK57D0

     -103447         -99866         2.640         1.946         0.487         0.193         0.015         0.007         0.074            0.430   

PK57D4

     -103447         -99866         1.912         1.388         0.390         0.110         0.024         0.012         0.086            0.450   

PK57D5

     -103447         -99866         0.584         0.369         0.178         0.021         0.016         0.010         0.064            0.450   

PK59D0

     -102548         -98414         0.623         0.443         0.139         0.029         0.011         0.003         0.055         3.406         0.450   

PK59D4

     -102548         -98414         1.557         1.086         0.366         0.088         0.016         0.005         0.055         3.372         0.450   

PK59D5

     -102548         -98415         0.959         0.585         0.337         0.030         0.007         0.004         0.060         3.344         0.450   

PK60D0

     -102593         -99294         0.091         0.041         0.029         0.010         0.011         0.003         0.054         3.275         0.450   

PK60D4

     -102593         -99295         0.691         0.470         0.157         0.046         0.017         0.003         0.061         3.391         0.450   

PK60D5

     -102593         -99295         0.582         0.413         0.125         0.033         0.011         0.003         0.058         3.317         0.450   

PK61D0

     -102730         -98133         13.051         8.392         3.740         0.773         0.146         0.018         0.059         3.203         0.450   

PK61D4

     -102730         -98134         2.404         1.162         1.008         0.058         0.175         0.045         0.120         3.197         0.450   

PK61D5

     -102730         -98134         7.076         3.963         2.658         0.317         0.137         0.024         0.094         3.300         0.450   

PK62D0

     -103411         -98020         3.163         1.647         1.245         0.069         0.202         0.066         0.159         3.193         0.450   

PK62D4

     -103411         -98020         0.370         0.265         0.067         0.022         0.015         0.004         0.046         3.129         0.450   

PK62D5

     -103412         -98020         0.204         0.136         0.041         0.015         0.012         0.004         0.025         3.140         0.450   

PK63D4

     -102924         -97690         5.744         2.319         2.519         0.101         0.805         0.021         0.114         3.156         0.420   

PK63D5

     -102924         -97690         0.096         0.029         0.047         0.010         0.010         0.002         0.031         3.143         0.380   

PK64D0

     -102621         -98858         2.672         1.393         1.151         0.108         0.020         0.006         0.050         3.215         0.450   

PK64D4

     -102622         -98858         0.146         0.073         0.041         0.010         0.022         0.006         0.045         3.218         0.450   

PK64D5

     -102622         -98859         0.593         0.247         0.277         0.016         0.053         0.011         0.035         3.140         0.450   

PK65D0

     -103617         -97729         1.226         0.974         0.144         0.098         0.010         0.006         0.034         3.111         0.450   

PK65D1

     -103617         -97728         1.269         0.971         0.187         0.100         0.011         0.004         0.036         3.185         0.450   

PK65D2

     -103617         -97728         1.245         0.897         0.254         0.083         0.011         0.008         0.054         3.176         0.450   

PK67D0

     -103812         -96436         0.762         0.307         0.345         0.016         0.095         0.031         0.061         2.950         0.410   

PK67D4

     -103812         -96436         0.075         0.020         0.025         0.010         0.020         0.006         0.034         2.924         0.400   

PK67D5

     -103812         -96436         2.047         0.974         0.745         0.041         0.287         0.041         0.114         2.935         0.410   

PK68D0

     -104368         -95201         1.371         1.040         0.215         0.094         0.021         0.007         0.057         3.177         0.450   

PK68D1

     -104368         -95201         0.466         0.242         0.185         0.014         0.025         0.009         0.066         3.175         0.450   

PK68D2

     -104368         -95201         0.073         0.022         0.020         0.010         0.020         0.003         0.055         3.104         0.450   

PK90D0

     -103231         -96606         1.306         0.719         0.471         0.028         0.088         0.029         0.097         3.247         0.450   

PK90D3

     -103230         -96605         4.391         2.712         1.306         0.125         0.247         0.047         0.186         3.250         0.450   


Appendix 2

Merensky Reef Histograms and Scatterplots

HANGINGWALL “10cm” HISTOGRAMS

The histograms are restricted to the borehole information of the composited “hangingwall” dataset. Data from the neighboring farms have been included in the statistical and geostatistical analysis. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. These histograms may exclude boreholes that were cut for the semivariogram analysis.

 

  1) Borehole PGE values show a distribution with 222 data points ranging in value from 0.02 to 17.32 g/t with a mean of 3.53 g/t. See Figure 1.

 

  2) Borehole platinum (Pt) prill values show a distribution with 222 data points ranging in value from 0.0018 to 10.51g/t with a mean of 2.09 g/t.

 

  3) Borehole palladium (Pd) prill values show a distribution with 222 data points ranging in value from 0.0018 to 5.55 g/t with a mean of 1.01 g/t.

 

  4) Borehole rhodium (Rh) prill values show a distribution with 222 data points ranging in value from 0.00012 to 0.65 g/t with a mean of 0.10 g/t.

 

  5) Borehole gold (Au) prill values show a distribution with 222 data points ranging in value from 0.016 to 1.97 g/t with a mean of 0.32 g/t.

 

  6) Borehole copper (Cu) values show a distribution with 190 data points ranging in value from 0.008 to 0.29% with a mean of 0.12%.

 

  7) Borehole nickel (Ni) values show a distribution with 190 data points ranging in value from 0.038 to 1.05 % with a mean of 0.272%.

 

  8) Borehole density values show a distribution with 142 data points ranging in value from 3.07 to 3.84 with a mean of 3.40.


LOGO

Figure 1: Hangingwall “Geotech” PGE grade histogram.

MR Reef HISTOGRAMS

The histograms are based on the borehole information of the composited reef, including both the “Normal” and “Pothole Edge” domains. Variography was performed on only the “Normal” reef domain, with the same parameters being applied to the “Pothole Edge” domain. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis.

 

  1) Borehole PGE values show a positively skewed distribution with 220 data points ranging in value from 0.77 to 16.34 g/t with a mean of 4.96 g/t. See Figure 3.

 

  2) Borehole thickness (TRUETHK) values show a distribution with 247 data points ranging in value from 0.3 to 1.78m with a mean of 0.88m. See Figure 4.


  3) Borehole platinum (Pt) prill values show a positively skewed distribution with 220 data points ranging in value from 0.475 to 11.05g/t with a mean of 3.048 g/t.

 

  4) Borehole palladium (Pd) prill values show a positively skewed distribution with 222 data points ranging in value from 0.064 to 7.405 g/t with a mean of 1.463 g/t.

 

  5) Borehole rhodium (Rh) prill values show a positively skewed distribution with 222 data points ranging in value from 0.014 to 0.67 g/t with a mean of 0.177 g/t.

 

  6) Borehole gold (Au) prill values show a positively skewed distribution with 224 data points ranging in value from 0.031 to 1.38 g/t with a mean of 0.329 g/t.

 

  7) Borehole copper (Cu) values show a positively skewed distribution with 192 data points ranging in value from 0.005 to 0.36 % with a mean of 0.094%.

 

  8) Borehole nickel (Ni) values show a positively skewed distribution with 192 data points ranging in value from 0.026 to 0.779 % with a mean of 0.235%.

Borehole density values show a normal distribution with 141 data points ranging in value from 3.01 to 3.65 with a mean of 3.41.

LOGO

Figure 3: MR Reef PGE grade histogram, cut at 20 g/t.


LOGO

Figure 4: MR Reef thickness histogram, cut at 0.3m

FOOTWALL 30cm HISTOGRAMS

The histograms are based on the borehole information of the composited reef for the 30 footwall component. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. The validated borehole grade, thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in Appendix 4.

 

  1) Borehole PGE values show a positively skewed distribution with 217 data points ranging in value from 0.02 to 39.920 g/t with a mean of 3.407 g/t. See Figure 5.

 

  2) Borehole platinum (Pt) prill values show a positively skewed distribution with 217 data points ranging in value from 0.002 to 26.05 g/t with a mean of 2.096 g/t.

 

  3) Borehole palladium (Pd) prill values show a positively skewed distribution with 217 data points ranging in value from 0.008 to 11.59 g/t with a mean of 1.015 g/t.


  4) Borehole rhodium (Rh) prill values show a positively skewed distribution with 217 data points ranging in value from 0.0005 to 1.73 g/t with a mean of 0.145 g/t.

 

  5) Borehole gold (Au) prill values show a positively skewed distribution with 217 data points ranging in value from 0.0005 to 0.95 g/t with a mean of 0.151 g/t.

 

  6) Borehole copper (Cu) values show a positively skewed distribution with 189 data points ranging in value from 0.0003 to 0.28 % with a mean of 0.032 %.

 

  7) Borehole nickel (Ni) values show a positively skewed distribution with 189 data points ranging in value from 0.01 to 0.0.565 % with a mean of 0.109 %.

 

  8) Borehole density values show a normal distribution with 143 data points ranging in value from 2.91 to 3.77 with a mean of 3.30.

LOGO

Figure 5: Footwall 30cm PGE grade histogram.

FOOTWALL 45cm HISTOGRAMS

The histograms are based on the borehole information of the composited reef for the 45cm footwall component. These histograms are sourced from the Snowden “Supervisor” software which was used for the semivariogram analysis. The validated borehole grade, thickness, individual element (platinum, palladium, rhodium and gold) prill distribution histograms are shown in Appendix 4.

 

  1) Borehole PGE values show a positively skewed distribution with 208 data points ranging in value from 0.02 to 32.16 g/t with a mean of 2.90 g/t. See Figure 6.


  2) Borehole platinum (Pt) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0027 to 20.46 g/t with a mean of 1.75 g/t.

 

  3) Borehole palladium (Pd) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0087 to 9.55 g/t with a mean of 0.893 g/t.

 

  4) Borehole rhodium (Rh) prill values show a positively skewed distribution with 208 data points ranging in value from 0.00055 to 1.63 g/t with a mean of 0.121 g/t.

 

  5) Borehole gold (Au) prill values show a positively skewed distribution with 208 data points ranging in value from 0.0068 to 0.964 g/t with a mean of 0.138 g/t.

 

  6) Borehole copper (Cu) values show a positively skewed distribution with 181 data points ranging in value from 0.0004 to 0.0.24 % with a mean of 0.0.030 %.

 

  7) Borehole nickel (Ni) values show a positively skewed distribution with 181 data points ranging in value from 0.01 to 0.48 % with a mean of 0.103 %.

 

  8) Borehole density values show a normal distribution with 181 data points ranging in value from 2.92 to 3.28 with a mean of 3.28.

LOGO

Figure 6: Footwall 45cm PGE grade histogram.

GRADE VERSES THICKNESS SCATTER PLOTS

MR Reef (Boreholes)

In order to determine whether it was necessary to krig the PGE accumulation, the relationship between the PGE grade and MR Reef channel width was investigated.


Figure 8 illustrates the scatter plot of the UG2 Reef from boreholes and indicates no discernable relationship between the grade and the thickness. The PGE grade and width were therefore estimated individually.

LOGO

Figure 8: Scatter plot PGE grade verses thickness from boreholes.

The following scatter plots show the relationship between the individual element components for the MR Reef unit.


LOGO

Figure 9: Scatter plot PGE grade verses Platinum from boreholes.

There is a proportional relationship between PGE and Pt, with Pt making up about 60% of the total PGE.


LOGO

Figure 10: Scatter plot PGE grade verses Palladium from boreholes.

There is a positive relationship between PGE and Pd, with Pd constituting 28% of the Total PGE Value.

LOGO

Figure 11: Scatter plot PGE grade verses Rhodium from boreholes.


LOGO

Figure 12: Scatter plot PGE grade verses Gold from boreholes

LOGO

Figure 13.13: Scatter plot Platinum verses Palladium grade from boreholes.


From the Pt to Pd Plot, 2 outliers occur, these have been investigated. BHID= KF72D5, where PT>10 and PD=<4. BHID= PK36D5, where PT<10and PD>6.

LOGO

Figure 14: Scatter plot Nickel verses Copper percentage from boreholes


Appendix 3 - VARIOGRAPHY

The Snowden “Supervisor” software was used for the semivariogram analysis.

Variograms were generated on the composited data files exported to a CSV format from Datamine. For the MR Reef, variography was performed on the dataset within the “Normal Reef” domain only. The “Pothole Edge” does not have enough samples to warrant an effective variogram study, hence the parameters of the “Normal reef” were applied to the “pothole edge reef” but the boundary was treated as a “hard” boundary during estimation.

Since the software allows the lag distance to be dynamically varied, the determination of the nugget and spatial variance for the different structures was performed at appropriate lags.

The spatial statistics for the Hangingwall, MR Reef and Footwall components from boreholes is summarised in Tables 1 to 5.

The semivariograms for the Hangingwall PGE grade and thickness are shown in Figure 1 and 2 respectively.

The semivariograms for the MR Reef PGE grade and thickness are shown in Figure 3 and 4 respectively.

The semivariogram, for the MR Footwall, 30 and 45cm PGE grades are shown in Figures 5, 6 and 7 respectively.


Table 1: Spatial statistics for the Hangingwall 10cm                

GRADE/THICKNESS

   RANGE      SILL      NUGGET  
     (m)                

PGE 1st structure

     430         0.42         0.31   

PGE 2nd structure

     735         0.27      

DENSITY-1st structure

     340         0.62         0.38   

CU 1st structure

     419         0.04         0.65   

CU 2nd structure

     714         0.31      

NI 1st structure

     540         0.3         0.7   

PT 1st structure

     420         0.35         0.3   

PT 2nd structure

     820         0.35      

PT 3rd structure

        

PD 1st structure

     412         0.45         0.36   

PD 2nd structure

     584         0.19      

PD 3rd structure

        

RH 1st structure

     434         0.34         0.35   

RH 2nd structure

     574         0.31      

RH 3rd structure

        

AU 1st structure

     449         0.21         0.56   

AU 2nd structure

     660         0.23      

AU 3rd structure

        


LOGO

Figure 1: Hangingwall PGE grade semivariogram.


Table 2: Spatial statistics for the MR Reef                

GRADE/THICKNESS

   RANGE      SILL      NUGGET  
     (m)                

PGE 1st structure

     317         0.01         0.65   

PGE 2nd structure

     625         0.34      

TRUETHK 1st structure

     385         0.47         0.14   

TRUETHK 2nd structure

     846         0.17      

TRUETHK 3rd structure

     2088         0.22      

DENSITY-1st structure

     328         0.55         0.19   

DENSITY-2nd structure

     551.5         0.26      

CU 1st structure

     513.5         0.12         0.47   

CU 2nd structure

     1093         0.41      

NI 1st structure

     741.5         0.23         0.39   

NI 2nd structure

     1169         0.38      

PT 1st structure

     460         0.15         0.7   

PT 2nd structure

     789.5         0.15      

PT 3rd structure

        

PD 1st structure

     361.5         0.29         0.46   

PD 2nd structure

     571         0.25      

PD 3rd structure

        

RH 1st structure

     780.5         0.26         0.74   

RH 2nd structure

        

RH 3rd structure

        

AU 1st structure

     1143         0.35         0.65   

AU 2nd structure

        

AU 3rd structure

        


LOGO

Figure 3: MR Reef PGE grade - cut at 20 g/t semivariogram.


LOGO

Figure 4: MR Reef thickness-cut at 0.3m semivariogram.

 

Table 3: Spatial statistics for the Footwall 30cm                

GRADE/THICKNESS

   RANGE      SILL      NUGGET  
     (m)                

PGE 1st structure

     481         0.31         0.69   

PGE 2nd structure

        

PGE 3rd structure

        

DENSITY-1st structure

     480         0.81         0.19   

DENSITY-2nd structure

        

DENSITY-3rd structure

        

CU 1st structure

     881         0.53         0.47   

CU 2nd structure

        

CU 3rd structure

        

NI 1st structure

     900.5         0.48         0.53   

NI 2nd structure

        

NI 3rd structure

        

PT 1st structure

     625.5         0.25         0.75   

PT 2nd structure

        


PT 3rd structure

        

PD 1st structure

     422.5         0.34         0.66   

PD 2nd structure

        

PD 3rd structure

        

RH 1st structure

     391.5         0.1         0.9   

RH 2nd structure

        

RH 3rd structure

        

AU 1st structure

     731         0.42         0.58   

AU 2nd structure

        

AU 3rd structure

        


LOGO

Figure 5: Footwall 30cm PGE grade – cut at 14g/t semivariogram.


Table 4: Spatial statistics for the Footwall 45cm                

GRADE/THICKNESS

   RANGE      SILL      NUGGET  
     (m)                

PGE 1st structure

     550         0.36         0.64   

PGE 2nd structure

        

PGE 3rd structure

        

DENSITY-1st structure

     475         0.84         0.16   

DENSITY-2nd structure

        

DENSITY-3rd structure

        

CU 1st structure

     815         0.53         0.47   

CU 2nd structure

        

CU 3rd structure

        

NI 1st structure

     745         0.48         0.52   

NI 2nd structure

        

NI 3rd structure

        

PT 1st structure

     465         0.31         0.69   

PT 2nd structure

        

PT 3rd structure

        

PD 1st structure

     625         0.43         0.57   

PD 2nd structure

        

PD 3rd structure

        

RH 1st structure

     300         0.18         0.82   

RH 2nd structure

        

RH 3rd structure

        

AU 1st structure

     731         0.42         0.58   

AU 2nd structure

        

AU 3rd structure

        


LOGO

Figure 6: Footwall 45cm PGE grade semivariogram.