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Puntillas-Galenosa

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Porphyry copper prospect in Antofagasta, Chile

Names and other identifiers

GMRAP ID 285
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
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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/.