| GMRAP ID | 3502 |
|---|---|
| Tract name | Western Medial New Guinea Magmatic Belt (142pCu7203) |
| Site status | prospect |
| Country | Indonesia |
|---|---|
| State or province | Papua |
| Geographic location | 132.854, -1.226 |
| Geologic map unit | 132.854, -1.226 |
| Nearby data |
| Deposit type | Porphyry copper |
|---|---|
| Age determination method | Geologic inference |
| Age range | Pliocene |
| Age reference | geologic inference |
| Minerals | bornite, chalcopyrite, magnetite |
| Tectonic setting | postconvergence |
| Stratigraphic age | Pliocene |
| Development status | Prospect |
|---|---|
| Major commodities | Cu, Au |
| Trace commodities | As, Sb |
| Gold-Moly ratio | -9999 |
| Comments | Blind porphyry copper-gold target; drilling (13 holes) intersected low-grade epithermal Au-As-Sb and at depth (from 712 m downhole), potasically altered diorite porphyry with quartz-magnetite-chalcopyrite stockwork and breccia; disseminated chalcopyrite and bornite; also magnetite-destructive argillic alteration. Drill targets based on magnetic anomalies. Drilled intercepts: 13 m at 0.21% Cu, 0.51 g/t Au from 561 m downhole; 192.8 m at 0.13% Cu, 0.19 g/t Au from 698.2 m downhole. Age based on reported ages for associated igneous rock (Malaihollo and others, 2002). Location based on exploration maps. Bird's Head Area. Exploration. |
|---|---|
| Study area name | Southeast Asia and Melanesia |
| References | Arc Exploration Ltd. (2009b); Arc Exploration Ltd. (2010a); Malaihollo and others (2002) |
| Site reference | Hammarstrom and others (2013) |