Development results
Development values represent the actual results of sampling and no allowance has been made for any adjustments which may be necessary when estimating ore reserves. All figures below exclude shaft sinking metres.
|
Driefontein |
|
|
|
March 2009 quarter |
December 2008 quarter |
Year to date F2009 |
|
|
|
Reef |
|
Carbon
Leader |
Main |
VCR |
|
Carbon
Leader |
Main |
VCR |
Carbon Leader |
Main |
VCR |
|
|
Advanced |
|
(m) |
|
3,414 |
1,041 |
1,535 |
|
1,440 |
838 |
1,191 |
6,305 |
2,888 |
4,094 |
|
|
Advanced on reef |
|
(m) |
|
640 |
311 |
136 |
|
262 |
301 |
144 |
1,221 |
1,140 |
362 |
|
|
Sampled |
|
(m) |
|
480 |
315 |
102 |
|
156 |
213 |
105 |
975 |
987 |
243 |
|
|
Channel width |
|
(cm) |
|
61 |
71 |
29 |
|
40 |
46 |
67 |
48 |
52 |
43 |
|
|
Average value |
- |
(g/t) |
|
19.1 |
6.1 |
6.0 |
|
33.0 |
11.3 |
11.7 |
25.7 |
9.1 |
12.6 |
|
|
|
- |
(cm.g/t) |
|
1,159 |
429 |
1761 |
|
1,317 |
520 |
782 |
1,233 |
472 |
547 |
|
|
Kloof |
|
|
|
March 2009 quarter |
December 2008 quarter |
Year to date F2009 |
|
|
|
Reef |
|
Kloof |
Main |
VCR |
|
Kloof |
Main |
VCR |
Kloof |
Main |
VCR |
|
|
Advanced |
|
(m) |
|
21 |
693 |
3,773 |
|
153 |
631 |
5,070 |
355 |
2,364 |
14,376 |
|
|
Advanced on reef |
|
(m) |
|
9 |
127 |
574 |
|
48 |
304 |
717 |
170 |
679 |
1,965 |
|
|
Sampled |
|
(m) |
|
9 |
147 |
528 |
|
63 |
297 |
619 |
177 |
669 |
1,783 |
|
|
Channel width |
|
(cm) |
|
91 |
127 |
129 |
|
175 |
140 |
115 |
184 |
113 |
126 |
|
|
Average value |
- |
(g/t) |
|
1.5 |
7.3 |
15.0 |
|
4.0 |
4.7 |
22.7 |
3.7 |
6.3 |
17.6 |
|
|
|
- |
(cm.g/t) |
|
133 |
934 |
1,937 |
|
710 |
661 |
2,626 |
689 |
716 |
2,219 |
|
Beatrix |
|
|
March 2009 quarter |
December 2008 quarter |
Year to date F2009 |
|
Reef |
|
Beatrix |
Kalkoenkrans |
|
Beatrix |
Kalkoenkrans |
Beatrix |
Kalkoenkrans |
|
|
Advanced |
|
(m) |
|
5,312 |
1,939 |
|
5,949 |
2,105 |
18,290 |
6,275 |
|
|
Advanced on reef |
|
(m) |
|
1,600 |
165 |
|
1,664 |
144 |
4,647 |
546 |
|
|
Sampled |
|
(m) |
|
1,752 |
168 |
|
1,278 |
123 |
4,545 |
480 |
|
|
Channel width |
|
(cm) |
|
100 |
128 |
|
95 |
201 |
100 |
130 |
|
|
Average value |
- |
(g/t) |
|
7.0 |
16.7 |
|
9.0 |
18.3 |
7.2 |
18.8 |
|
|
|
- |
(cm.g/t) |
|
693 |
2,139 |
|
857 |
3,670 |
727 |
2,439 |
|
|
South Deep |
|
|
|
March 2009 quarter |
|
December 2008 quarter |
Year to date F2009 |
|
|
|
|
Reef |
|
Elsburg2,3 |
|
Elsburg |
Elsburg |
|
|
Advanced |
|
(m) |
|
1,592 |
|
2,180 |
5,061 |
|
|
Advanced on reef |
|
(m) |
|
855 |
|
1,399 |
3,357 |
|
|
Average value |
- |
(g/t) |
- |
6.4 |
|
5.8 |
5.4 |
|
1) Less development at the higher grade 1, 4 and 5 shafts as a result of the secondary support initiative, with some prospecting in a lower grade VCR zone at 2 shaft.
2) Trackless development in the Elsburg reefs is evaluated by means of the block model.
3) Full channel width not fully exposed in development, hence not reported.
|