| GMRAP ID | 325 |
|---|---|
| Tract name | Argentina Miocene–Pliocene Bajo de la Alumbrera (005pCu1014c) |
| Site status | prospect |
| Country | Argentina |
|---|---|
| State or province | Catamarca |
| Geographic location | -66.55, -27.4 |
| Geologic map unit | -66.55, -27.4 |
| Nearby data |
| Deposit type | Porphyry copper |
|---|---|
| Age (Ma) | 7.1Ma |
| Age determination method | K-Ar biotite |
| Age range | 7.1 ±0.1 Ma |
| Age reference | Sillitoe (1977) |
| Minerals | biotite, chalcopyrite, chlorite, delafossite, epidote, gypsum, hematite, magnetite, malachite, molybdenite, pyrite, sericite |
| Associated rocks | dacite porphyry, monzonite porphyry, andesite, granite, diorite porphyry, metasedimentary rocks, phyllite, sandstone, schist |
| Tectonic setting | continental margin |
| Stratigraphic age | Miocene |
| Development status | Occurrence |
|---|---|
| Major commodities | Cu, Au, Ag |
| Gold-Moly ratio | -9999 |
| Comments | Reported grades range from 0.05 to 0.26% Cu, ?0.35 g/t Au, 1.65 to 2.5 g/t Ag. Farallon Negro volcanic region. |
|---|---|
| Study area name | Andes |
| References | Alderete (1999b); Koukharsky and Mirré (1976); Sasso and Clark (1998); Sillitoe (1977); Singer and others (2008) |
| Site reference | Cunningham and others (2008) |