Porphyry copper prospect in Antofagasta, Chile

Names and other identifiers

Tract name Chile Cretaceous Antucoya (005pCu1017)
Site status prospect

Geographic location

Country Chile
State or province Antofagasta
Geographic location -69.8333, -21.9167
Geologic map unit -69.8333, -21.9167
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 132Ma
Age determination method K-Ar whole rock
Age range 132 ±8 Ma; 118 ±15 Ma
Age reference Perelló, Martini and Muhr (2003); Munizaga and others (1985); Boric and others (1990)
Minerals copper-oxides, hematite, pyrite, sericite
Tectonic setting continental margin
Stratigraphic age Early Cretaceous

Commodity and development information

Development status Occurrence
Major commodities Cu
Gold-Moly ratio -9999

Reference information

Comments Fairly well explored.
Study area name Andes
References Perelló, Martini and Muhr (2003); Maksaev and others (2006); Munizaga and others (1985); Boric and others (1990); Camus (2005); Sillitoe (1988); Sillitoe and McKee (1996); Singer and others (2008)
Site reference Cunningham and others (2008)
Boric, R.P., Diaz, F.F., and Maksaev, V.J., 1990, Geología y yacimientos metalíferos de la Región de Antofagasta: Santiago, [Chile] Servicio Nacional de Geología y Mineneria, Boletin 40, 246 p., 1 map, scale 1:500,000.
Camus, F., 2005, The Andean porphyry systems, in Porter, T.M., ed., Super porphyry copper and gold deposits—A global perspective: Adelaide, PGC Publishing, v. 1, p. 45–63. (Abstract also available at http://www.portergeo.com.au/publishing/superporphyry/superpstart.html.)Maksaev, Victor; Munizaga, Francisco; Fanning, Mark; Palacios, Carlos; and Tapia, José, 2007, SHRIMP U-Pb dating of the Antucoya porphryr copper deposit—New evidence fo an Early Cretaceous porphyry-related metallogenic epoch in the Coastal Cordillera of northern Chile: Mineralium Deposita, v. 41, p. 637–644. (Also available at http://dx.doi.org/10.1007/s00126-006-0091-5.)
Munizaga, F., Huete, C., and Hervé, F., 1985, Geocronología K–Ar y razones iniciales 87Sr/86Sr de la Franja Pacífica de Desarrollos Hidrotermales: Congreso Geológico Chileno, 4th, Antofagasta [Actas], v. 4, p. 357–379.
Perelló, J., Martini, R., and Muhr, R., 2003, Buey Muerto: Porphyry copper mineralization in the early Cretaceous arc of northern Chile [abs.]: Congresso Geológico Chileno, 10th, Concepción, 2003, CD-ROM, 1 p.
Sillitoe, R.H., 1988, Epochs of intrusion-related copper mineralization in the Andes: Journal of South American Earth Sciences, v. 1, no. 1, p. 89–108. (Also available at http://dx.doi.org/10.1016/0895-9811(88)90018-1.)Sillitoe, R.H., and McKee, E.H., 1996, Age of supergene oxidation and enrichment in the Chilean porphyry copper province: Economic Geology, v. 91, p. 164–179. (Also available at http://dx.doi.org/10.2113/gsecongeo.91.1.164.)Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.