CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
760 Peru (Huancavelica) 12.33.50 S -- 074.23.16 W Cobriza Cu; Ag; Bi; Fe
 
Database name: World Fe-oxide+/-Cu-Au-U (IOCG) deposits
Compilers: Sunil S. Gandhi
Release date: 2015-03-04
   
Deposit name(s): Cobriza
Political location(s): Peru; Province or state: Huancavelica; Nearest community: Lima (300 km ESE)
Deposit clan (type): Kiruna-type
Deposit status: producer; Size category: 100 Mt; Status comments: current production 10 000 tpd Cu ore; 100 Mt resources average 1.4 to 1.6 % Cu and 14 to 19 g/t Ag (Espinoza, 2002); deposit 5500 m long 15-25 m thick, > 2000 m deep; strike 315, dip 30 to 50 deg. SE
Geologic province: Hercynian Orogen
Geologic subprovince: Eastern Cordillera
Geologic district: Permo-Triassic Ensialic Rift
Commodities: Cu; Ag; Bi; Fe
Geological ages: Permian - Triassic (related magmatics)
Host rocks: (1) sedimentary; carbonate; Depositional setting: ensialic rift; Metamorphic grade: greenschist
Host rock stratigraphy:Cobriza Limestone
Related igneous rocks: (1) intrusive; granite suite; Initials: Cobriza granite; Magma series: alkaline (A-type); Depositional setting: continental
Radiometric ages: Object dated: Alteration Signature; Age - Ma: 263.4; +8; -8; Dating method: K-Ar; Concentrate: amphibole; Source rock: granite-altered; Event dated: mineralization; Interpretive comment: age close to age of 253+/-11 Ma old Azul batholith to which Cobriza granite NE of deposit belongs; Reference: Injoque, J., 2002: Fe Oxide-Cu-Au Deposits in Peru: An Integrated View; Section The Americas, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 2, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 377 p, p. 97 - 114
Deposit shape: tabular
Deposit dimensions:length: 5,500 metres
width: 20 metres
thickness: 2,000 metres
Qualified comments: (Applies to: reserve/resource assays) Current production 10 000 tpd Cu ore; 100 Mt resources average 1.4 to 1.6 % Cu and 14 to 19 g/t Ag (Espinoza, 2002); deposit 5500 m long 15-25 m thick, > 2000 m deep; strike 315, dip 30 to 50 deg. SE
References:
Injoque, J., 2002
Fe Oxide-Cu-Au Deposits in Peru: An Integrated View
Section The Americas, in Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective, Volume 2, Edited by Porter, T. M., Australian Mineral Foundation, Adelaide, Australia, PGC Publishing, Adelaide, 377 p, p. 97 - 114

Petersen, U., 1965
Regional Geology and Major Ore Deposits of Central Peru
Economic Geology, Volume 60, p. 407 - 476

Sillitoe, 2003
Iron Oxide-Copper-Gold Deposits: An Andean View
Mineralium Deposita, Volume 38, p. 787 - 812


Generated 2015-03-04 14:16:24 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
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