Mineral resources, ore reserves for Martabe gold mine
Wednesday, September 25 2013 - 02:51 AM WIB
Hong Kong-listed G-Resources Group Limited announced Monday the JORC compliant mineral resources and ore reserves statement for the Martabe gold and silver mine in North Sumatra.
The total G-Resources JORC compliant mineral resources, as at 30 June 2013 are 206.6 Mt at 1.2 g/t gold and 11 g/t silver, for total metal content of 8.2 Moz of gold and 75.3 Moz of silver.
G-resources JORC compliant mineral resources as at 30 June 2013
| Deposit | Category | Tonnes | Gold Grade | Silver Grade | Contained Metal | |
| (Mt) | (g/t Au) | (g/t Ag) | Gold
(Moz) |
Silver
(Moz) |
||
| Purnama | Measured | 5.0 | 2.4 | 39 | 0.4 | 6.3 |
| Indicated | 67.6 | 1.6 | 19 | 3.5 | 41.4 | |
| Inferred | 31.4 | 0.9 | 11 | 1.0 | 11.4 | |
| Total | 104.0 | 1.4 | 18 | 4.8 | 59.1 | |
| Mine Stockpiles | Measured | 0.8 | 1.4 | 12 | 0.03 | 0.4 |
| Total | 0.8 | 1.4 | 12 | 0.03 | 0.4 | |
| Ramba Joring | Measured | - | - | - | - | - |
| Indicated | 33.7 | 1.0 | 4 | 1.1 | 4.5 | |
| Inferred | 4.6 | 0.8 | 4 | 0.1 | 0.5 | |
| Total | 38.3 | 1.0 | 4 | 1.2 | 5.0 | |
| Barani | Measured | - | - | - | - | - |
| Indicated | 15.6 | 1.4 | 2 | 0.7 | 1.0 | |
| Inferred | 0.4 | 0.9 | 2 | 0.1 | 0.1 | |
| Total | 15.0 | 1.4 | 2 | 0.8 | 1.1 | |
| Tor Uluala | Measured | - | - | - | - | - |
| Indicated | - | - | - | - | - | |
| Inferred | 31.5 | 0.9 | 8 | 0.9 | 7.8 | |
| Total | 31.5 | 0.9 | 8 | 0.9 | 7.8 | |
| Horas | Measured | - | - | - | - | - |
| Indicated | - | - | - | - | - | |
| Inferred | 15.7 | 0.8 | 2 | 0.4 | 0.9 | |
| Total | 15.7 | 0.8 | 2 | 0.4 | 0.9 | |
| Uluala Hulu | Measured | - | - | - | - | - |
| Indicated | 0.8 | 2.3 | 31 | 0.1 | 0.8 | |
| Inferred | 0.5 | 1.5 | 12 | 0.03 | 0.2 | |
| Total | 1.3 | 2.0 | 24 | 0.1 | 1.0 | |
| Combined | Total | 206.6 | 1.2 | 11 | 8.2 | 75.3 |
The total G-Resources JORC compliant ore reserves as at 30 June 2013 are 51.4 Mt at 1.9 g/t gold and 20.2 g/t silver for a total metal content of 3.2 Moz of gold and 33.4 Moz of silver.
G-Resources JORC compliant ore reserves as at 30 June 2013
| Deposit | Category | Tonnes | Gold Grade | Silver Grade | Contained Metal | |
| ? | ? | (Mt) | (g/t Au) | (g/t Ag) | Gold
(koz) |
Silver
(koz) |
| Purnama | Proved Reserves | 4.4 | 2.5 | 41.5 | 400 | 5,900 |
| ? | Probable Reserves | 37.4 | 1.9 | 21.8 | 2,300 | 26,200 |
| Barani | Probable Reserves | 3.5 | 2.0 | 2.6 | 200 | 300 |
| Ramba Joring | Probable Reserves | 5.2 | 1.8 | 4.4 | 300 | 700 |
| Purnama stockpile | Probable Reserves | 0.8 | 1.4 | 11.6 | 0 | 300 |
| Subtotals | Proved Reserves | 4.4 | 2.5 | 41.5 | 400 | 5,900 |
| ? | Probable Reserves | 47.0 | 1.9 | 18.2 | 2,800 | 27,500 |
| TOTAL ORE RESERVES | ? | 51.4 | 1.9 | 20.2 | 3,200 | 33,400 |
Editing by Reiner Simanjuntak