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Porphyry copper prospect in Antofagasta, Chile

Names and other identifiers

GMRAP ID 623
Tract name Chile Eocene–Oligocene Chuquicamata (005pCu1010)
Site status prospect

Geographic location

Country Chile
State or province Antofagasta
Geographic location -69.233333333, -23.3
Geologic map unit -69.233333333, -23.3
Nearby data
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Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Eocene–Oligocene or younger
Age reference geologic inference
Minerals atacamite, chalcocite, chalcopyrite, chrysocolla, chlorite, clay minerals, pyrite, sericite, tenorite
Associated rocks sandstone, volcanic rocks
Tectonic setting continental margin
Stratigraphic age Eocene–Oligocene or younger

Commodity and development information

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

Reference information

Comments Preliminary resources: 63 Mt at 0.46% Cu of oxide ore (0.25% cut-off grade) and 137 Mt of sulfide ore at 0.56% Cu (0.4% cut-off grade).
Study area name Andes
References Antofagasta PLC (2001b); Antofagasta PLC (2003); Maksaev (2001); Singer and others (2008)
Site reference Cunningham and others (2008)
Antofagasta PLC, 2001b, Annual report 2001: Antofagasta PLC Annual Report 2001, 80 p. (Also available at http://www.antofagasta.co.uk/pdf/annual_01/wholeversion2001.pdf.)Antofagasta PLC, 2003, Annual report and financial statements 2003: Antofagasta PLC Annual Report, 100 p. (Also available at http://www.antofagasta.co.uk/pdf/annual_03/annual2003.pdf.)
Maksaev, V.J., 2001, Reseña metalogenica de Chile y de los procesos que determinan la metalogenesis Andina: 63 p, accessed 2008, at http://www.cipres.cec.uchile.cl/~vmaksaev/METALOGENESIS20DE20Chile.pdf. [Web page no longer available.]
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/.