Porphyry copper deposit in Cuzco, Peru

Names and other identifiers

Tract name Peru Eocene–Oligocene Antapaccay (005pCu1009)
Site status deposit

Geographic location

Country Peru
State or province Cuzco
Geographic location -71.306666667, -14.98
Geologic map unit -71.306666667, -14.98
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 38Ma
Age determination method unknown
Age range 38 Ma
Age reference Singer and others (2008)
Minerals bornite, brochantite, chalcanthite, chalcocite, chalcopyrite, chlorite, chrysocolla, clay minerals, copper, covellite, enargite, epidote, galena, hematite, jarosite, malachite, molybdenite, pyrite, pyroxene, pyrrhotite, sphalerite, tourmaline
Associated rocks andesite, quartz monzonite porphyry, skarn, granodiorite, quartz monzonite, limestone, quartzite, shale
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Prospect
Major commodities Cu
Tonnage (Mt) 300Mt
Cu grade (%) 0.68%
Contained copper 2,000,000t
Gold-Moly ratio -9999

Reference information

Comments Andahuaylas-Yauri belt. 100% covered with alluvial gravel 10 to 30 m thick.
Study area name Andes
References Cabello (2002); Perelló, Carlotto and others (2003); Petersen and Vidal (1996); Simons (1964?); Yashikawa and others (1976); Singer and others (2008)
Site reference Cunningham and others (2008)
Cabello, J., 2002, Copper exploration in the central Andes—A review: Chile, BHP Billiton, 7 p., accessed 2008, at http://www.metabulletin.com/speakerpaper/copper/presentations/bhpbilliton.pdf. [Web page no longer available.]
Perelló, José; Carlotto, Victor; Zárate, Alberto; Ramos, Pedro; Rosso, Héctor; Neyra, Carlos; Caballero, Alberto; Fuster, Nicolás; and Muhr, Ricardo, 2003, Porphyry-style alteration and mineralization of the middle Eocene to early Oligocene Andahuaylas-Yauri belt, Cuzco region, Peru: Economic Geology, v. 98, p. 1575–1605. (Also available at http://dx.doi.org/10.2113/gsecongeo.98.8.1575.)
Petersen, U., and Vidal, C.E., 1996, Magmatic and tectonic controls on the nature and distribution ofcopper deposits in Peru, in Camus, F., Sillitoe, R.H., and Petersen, R., eds., Andean copper deposits—New discoveries, mineralization, styles and metallogeny: Society of Economic Geologists Special Publication, no. 5, p. 1–18.
Simons, F.S., [1964?], The mineral deposits of Peru: Tucson, Ariz., U.S. Geological Survey Latin American Archive, unpub. manuscript, 1715 p., and 337 figures, and tables and oversize maps.
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/.
Yashikawa, S., Sakai, S., and Sato, H., 1976, Discovery of the Quechua deposit and its characteristics: Mining Geology, v. 26, p. 143–152. [In Japanese, English abstract.]