Cadia East is 2.5 km long, 600 m wide and 1.9 km deep to give a resourse of 2800Mt at 0.4g Au/t which works out to about 33.7Moz Au.
Using very simple maths based on Boda is currently being 1 km long 400 m wide and 1.1km deep it could be estimated that the resource is 432 Mt. At 0.4 g/t of Au this would be 5.2 Moz Au, 3.9Moz Au at 0.3 g/t Au and 2.6 Moz Au at 0.2 g/t. Boda is still open at depth as well as to the northwest and south, so it is likely that the resource will grow.
I guess the question is at what size does a porphyry become economic to mine?
Ann: Significant Expansion to Mineralisation at Boda, page-53
-
- There are more pages in this discussion • 228 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Add ALK (ASX) to my watchlist
 (20min delay)
|
|||||
|
Last
43.5¢ |
Change
0.030(7.41%) |
Mkt cap ! $262.9M | |||
| Open | High | Low | Value | Volume |
| 42.5¢ | 44.0¢ | 42.0¢ | $428.6K | 1.000M |
Buyers (Bids)
| No. | Vol. | Price($) |
|---|---|---|
| 1 | 26318 | 43.0¢ |
Sellers (Offers)
| Price($) | Vol. | No. |
|---|---|---|
| 43.5¢ | 14527 | 1 |
View Market Depth
| Last trade - 16.10pm 13/09/2024 (20 minute delay) ? |
| ALK (ASX) Chart |