Geology: The Kalgold operation is located within the Kraaipan Greenstone Belt, 60km south of Mahikeng. This is part of the larger Amalia-Kraaipan Greenstone terrain, consisting of north-trending linear belts of Archaean meta-volcanic and metasedimentary rocks, separated by granitoid units. Mineralisation occurs in shallow dipping quartz veins, which occur in clusters or swarms, within the steeply dipping magnetite-chert banded iron formation. Disseminated sulphide mineralisation, dominated mostly by pyrite, occurs around and between the shallow dipping quartz vein swarms. The D zone is the largest orebody encountered and has been depleted. Mineralisation has also been found in the Mielie Field zone (adjacent to the D zone), the A zone and A zone west (along strike to the north of the D zone), and the Watertank and Windmill areas to the north of the A zone. Current operations are focused on mining the Watertank and A zone open pits.
Gold – Mineral resources
| |
Measured resources |
|
Indicated resources |
|
Inferred resources |
|
Total mineral resources |
| Operations |
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
|
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
|
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
|
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
| Kalgold |
25.1 |
|
0.97 |
|
24 |
|
779 |
|
58.7 |
|
0.94 |
|
55 |
|
1 766 |
|
36.3 |
|
0.93 |
|
34 |
|
1 085 |
|
120.1 |
|
0.94 |
|
113 |
|
3 630 |
| Grand total |
25.1 |
|
0.97 |
|
24 |
|
779 |
|
58.7 |
|
0.94 |
|
55 |
|
1 766 |
|
36.3 |
|
0.93 |
|
34 |
|
1 085 |
|
120.1 |
|
0.94 |
|
113 |
|
3 630 |
Modifying factors
 |
 |
 |
 |
 |
 |
 |
| Operations |
|
MCF
(%) |
|
Dilution
(%) |
|
PRF
(%) |
| Kalgold |
|
100 |
|
2 |
|
85 |
Gold – Mineral reserves
| |
Proved reserves |
|
Probable reserves |
|
Total mineral reserves |
| Operations |
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
|
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
|
Tonnes
(Mt) |
|
(g/t) |
|
Gold
(000kg) |
|
Gold
(000oz) |
| Kalgold |
18.6 |
|
0.82 |
|
15 |
|
492 |
|
7.1 |
|
0.85 |
|
6 |
|
193 |
|
25.7 |
|
0.83 |
|
21 |
|
685 |
| Grand total |
18.6 |
|
0.82 |
|
15 |
|
492 |
|
7.1 |
|
0.85 |
|
6 |
|
193 |
|
25.7 |
|
0.83 |
|
21 |
|
685 |
|