| GMRAP ID | 322 |
|---|---|
| Tract name | Argentina Miocene–Pliocene Bajo de la Alumbrera (005pCu1014c) |
| Site status | deposit |
| Country | Argentina |
|---|---|
| State or province | Catamarca |
| Geographic location | -66.608888889, -27.329722222 |
| Geologic map unit | -66.608888889, -27.329722222 |
| Nearby data |
| Deposit type | Porphyry copper |
|---|---|
| Deposit subtype | Cu-Au |
| Age (Ma) | 7.5Ma |
| Age determination method | unknown |
| Age range | 8.02 ±0.14 to 6.75 ±0.09 Ma |
| Age reference | Singer and others (2008) |
| Minerals | anhydrite/gypsum, apatite, biotite, bornite, chalcocite/digenite, chalcopyrite, chlorite, covellite, epidote, galena, goethite/limonite, gold, hematite/specularite, jarosite, kaolinite/dickite, magnetite, molybdenite, pyrite, sericite, siderite, sphalerite |
| Associated rocks | dacite porphyry, quartz-feldspar porphyry,granite, schist, gneiss,andesite, andesite breccia, conglomerate (block and ash flow deposit), sandstone, tuff |
| Tectonic setting | continental margin |
| Stratigraphic age | Miocene |
| Development status | Producer |
|---|---|
| Major commodities | Cu, Au, Ag |
| Minor commodities | Pt, Pd |
| Tonnage (Mt) | 806Mt |
| Cu grade (%) | 0.53% |
| Au grade (g/t) | 0.64g/t |
| Ag grade (g/t) | 2.5g/t |
| Contained copper | 4,300,000t |
| Gold-Moly ratio | -9999 |
| Comments | 1999 resources: 767 Mt at 0.51% Cu and 0.64 g/t Au. In concentrate: 8 ppb Pt; 35 ppb Pd. Exposed. Farallon Negro volcanic region. |
|---|---|
| Study area name | Andes |
| References | Angera (1999); Brown (2005); Casaceli (1993); Guilbert (1995); Guilbert (2000); Harris and others (2006); Muller and Forrestal (1998); Proffett (2003); Sasso and Clark (1998); Sillitoe (1981); Tarkian and Stribrny (1999); Ulrich and Heinrich (2001); Ulrich and others (2001); Singer and others (2008) |
| Site reference | Cunningham and others (2008) |