Resource Estimation for Zone 1
The following graphs and figures have been taken from The “ Resource Audit of the Andash Project” undertaken and published by Wardell Armstrong International Limited.
Resource estimation
Current Resources at 0.5g/t Au cut-off |
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Category |
Million Tonnes |
Au g/t |
Cu % |
Measured |
1.75 |
0.99 |
0.40 |
Indicated |
8.19 |
1.12 |
0.41 |
Total (Measured & Indicated) |
9.94 |
1.10 |
0.41 |
|
|
|
|
Inferred |
7.61 |
1.08 |
0.37 |
Andash Block Model with Topography
Compositing
Comparison of Raw and Ore Zone Composite Grades |
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|
1m Composites |
Assays in ore zone (86 drillholes) |
Au |
1.08 |
1.12 |
Cu |
0.42 |
0.42 |
Variography
Isotropic Variogram For Gold
Isotropic Variogram For Copper
Variogram Parameters |
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Element |
Nugget (Co) |
Type |
Sill (C1) |
Range (A1) |
Sill (C2) |
Range (A2) |
Au |
0.51 |
Spherical |
1.09 |
122 |
None |
None |
Cu |
0.32 |
Spherical |
0.68 |
112 |
None |
None |
Interpolated Gold Model
Model Parameters |
|
Block model parameters |
|
Min X |
33200E |
Max X |
34000E |
Min Y |
9400N |
Max Y |
10000N |
Min Z |
1800 |
Max Z |
2400 |
Model Rotation |
0 |
Number of Columns |
40 |
Number of Rows |
30 |
Number of levels |
35 |
Column Width |
20m |
Row Height |
20m |
Level Height |
20m |
Gold Interpolation Parameters |
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Interpolation |
Pass 1 |
Pass 2 |
Search parameters |
|
|
Algorithm used |
Ordinary Kriging |
Ordinary Kriging |
Principal (az/dip) |
No rotation |
No rotation |
Intermediate (az/dip) |
No rotation |
No rotation |
Orientation D3 minor |
No rotation |
No rotation |
Range (D1xD2xD3) in metres |
50m |
120m |
Search Type |
Octant |
Ellipse |
Min total samples |
2 |
2 |
Max total samples |
8 |
8 |
Min no of octants |
2 |
None |
Max samples per octant per hole |
5 |
None |
Max per octant |
2 |
None |
Grade capping (%) |
None |
None |
High grade transition |
None |
None |
Restricted search |
None |
None |
