| GMRAP ID | 557 |
|---|---|
| Alternate names | Hambusimaloso, Vuralonggoma, Guadalcanal Joint Venture |
| Tract name | Outer Melanesian Arc II - Melanesia Area (009pCu7210) |
| Site status | prospect |
| Country | Solomon Islands |
|---|---|
| State or province | Guadalcanal |
| Geographic location | 160.16424, -9.61194 |
| Geologic map unit | 160.16424, -9.61194 |
| Nearby data |
| Deposit type | Porphyry copper |
|---|---|
| Age determination method | Geologic inference |
| Age range | Oligocene |
| Age reference | Singer and others (2008) |
| Minerals | alunite, apatite, barite, bornite, chalcocite, chalcopyrite, covellite, diaspore, gold, goethite, gypsum, hematite, limonite, malachite, magnetite, pyrite, sericite, silver minerals, sphalerite, tenorite |
| Associated rocks | andesite porphyry, tonalite, andesite, diorite, pyroclastics |
| Tectonic setting | island arc |
| Stratigraphic age | Oligocene |
| Development status | Prospect |
|---|---|
| Major commodities | Cu |
| Gold-Moly ratio | -9999 |
| Comments | Exploration license area targeting low-grade, high-tonnage porphyry copper with a copper-rich oxide cap. Soil copper >0.1% Cu over an area of 3 square km outlined and trenched; 155 m at 1.33% Cu (2005). Prospect is within a large nested caldera structure 15 km S of Honiara, Guadalcanal. Exploration by Utah in 1970s showed widespread high Cu in soils; rock chip float samples with >1% Cu. Exploration. |
|---|---|
| Study area name | Southeast Asia and Melanesia |
| References | United Nations (1985); Singer and others (2008) |
| Site reference | Hammarstrom and others (2013) |