Coroccohuayco

Porphyry copper (Cu-Au) deposit in Cuzco, Peru

Names and other identifiers

GMRAP ID 620
Tract name Peru Eocene–Oligocene Antapaccay (005pCu1009)
Site status deposit

Geographic location

Country Peru
State or province Cuzco
Geographic location -71.2625, -14.952222222
Geologic map unit -71.2625, -14.952222222
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 31Ma
Age determination method unknown
Age range 31 Ma
Age reference Singer and others (2008)
Minerals anhydrite, bornite, chalcocite, chalcopyrite, covellite, digenite, hematite, magnetite, marcasite, molybdenite, pyrite, sericite, tennantite
Associated rocks hornfels, quartz monzonite porphyry, skarn, diorite, gabbro, granodiorite, limestone, quartzite, shale
Tectonic setting continental margin
Stratigraphic age Oligocene

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 155Mt
Cu grade (%) 1.57%
Au grade (g/t) 0.33g/t
Contained copper 2,430,000t
Gold-Moly ratio -9999

Reference information

Comments Andahuaylas-Yauri belt.
Study area name Andes
References Aizawa and Tomizawa (1986); Cabello (2002); Maher and Larsen (2007); Perelló, Carlotto and others (2003); Petersen and Vidal (1996); Sillitoe (1989a); Singer and others (2008)
Site reference Cunningham and others (2008)
Aizawa, N., and Tomizawa, N., 1986, Prospecting of Coroccohuayco copper deposit, Peru—With special reference to southern skarn zone: Mining Geology, v. 36, no. 2, p. 83–100. [In Japanese, English abstract.]
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.]
Maher, K.C., and Larson, P.B., 2007, Variation in copper isotope ratios and controls on fractionation in hypogene skarn mineralization at Coroccohuayco and Tintaya, Perú: Economic Geology, v. 102, p. 225–237. (Also available at http://dx.doi.org/10.2113/gsecongeo.102.2.225.)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.
Sillitoe, R.H., 1989a, Copper deposits and Andean evolution, in Ericksen, G.E., Cañas Pinochet, M.T., and Reinemund, J.A., eds., Geology of the Andes and its relation to hydrocarbon and mineral resources: Houston, Circum Pacific Council for Energy and Mineral Resources Earth Science Series, v. 11, p. 285–311.
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/.