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Cerro Negro

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Porphyry copper deposit in Arequipa, Peru

Names and other identifiers

GMRAP ID 268
Tract name Chile-Peru Paleocene–Eocene Toquepala (005pCu1008)
Site status deposit

Geographic location

Country Peru
State or province Arequipa
Geographic location -71.552777778, -16.545833333
Geologic map unit -71.552777778, -16.545833333
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 57Ma
Age determination method unknown
Age range 57 Ma
Age reference Singer and others (2008)
Minerals antlerite, azurite/malachite, bornite, brochantite, chalcocite, chalcopyrite, chlorite, chrysocolla, clay minerals, covellite, cuprite, galena, hematite/specularite, pyrite, sericite, sphalerite, tenorite, tourmaline
Associated rocks breccia, rhyolite porphyry, dacitic tuff, gneiss, sandstone, siltstone, shale, diorite, granodiorite
Tectonic setting continental margin
Stratigraphic age Paleocene

Commodity and development information

Development status Prospect
Major commodities Cu
Tonnage (Mt) 70Mt
Cu grade (%) 0.53%
Contained copper 370,000t
Gold-Moly ratio -9999

Reference information

Comments Oxide ore. Post-mineral rhyolite porphyry 52.6 Ma. 30% of the deposit area (mainly southeastern part) is covered by talus and alluvium.
Study area name Andes
References Bidgood (2000); Zappettini and others (2001); Singer and others (2008)
Site reference Cunningham and others (2008)
Bidgood, T., 2000, Geologia del yacimiento Cerro Negro—Primer volumen de monografias de yacimientos minerales Peruanos—Historia, exploration y geología: Lima, Instituto de Ingenieros de Minas del Peru, p. 227–230.
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/.
Zappettini, Eduardo; Miranda-Angles, Vitaliano; Rodriguez S., Carolina; Palacios, Oscar; Cocking,Robert; Godeas, Marta; Uribe-Zeballos, Hernán; Vivallo S., Waldo; Paz, M.M.; Seggiaro, Raúl; Heuschmidt, Bertand; Gardeweg P., Moyra; Boulangger Rondoy, Elmere; Korzeniewski, Lidia I.; Mpodozis M., Constantino; Carpio R., Mario; and Rubiolo, Daniel, 2001, Mapa metalogénico de laregión fronteriza entre Argentina, Bolivia, Chile y Perú (14ºS–28ºS): Santiago, Chile, Servicio Nacional de Geología y Minería, Publicacion Geológica Multinacional No. 2, 222 p., 1 map, scale 1:1,000,000.