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Porphyry copper (Cu-Au) deposit in British Columbia, Canada

Names and other identifiers

GMRAP ID 9871
Tract name Intermontane Island-Arc (003pCu2001x)
Included sites Tree prospect, Fin prospect
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -126.733318937, 57.233305351
Geologic map unit -126.733318937, 57.233305351
Nearby data
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Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 201Ma
Age determination method Inferred from U-Pb zircon mean age for Kemess South
Age range 202 Ma (U-Pb zircon); 200 Ma (unknown method)
Age reference unknown
Minerals bornite, chalcopyrite, magnetite, molybdenite, native gold, pyrite
Associated rocks diorite, quartz monzonite, granodiorite
Tectonic setting island arc
Stratigraphic age Late Triassic–Early Jurassic

Commodity and development information

Development status Prospect
Major commodities Cu, Au, Ag
Minor commodities Mo
Tonnage (Mt) 70Mt
Cu grade (%) 0.15%
Au grade (g/t) 0.57g/t
Contained copper 100,000t
Gold-Moly ratio -9999

Reference information

Comments 1992(?), resource estimated.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Schroeter (1995); Schroeter and others (2006); Sinclair (2007); Singer and others (2008)
Site reference Mihalasky and others (2011, revised 2013)
MINFILE BC, 2009, MINFILE Mineral inventory: British Columbia Ministry of Energy, Mines and Petroleum Resources, MINFILE database, total records 12,523, accessed December 2009, at http://minfile.gov.bc.ca/.
Schroeter, T.G., ed., 1995, Porphyry deposits of the northwestern Cordillera of North America: Canadian Institute of Mining, Metallurgy and Petroleum Special Volume 46, 888 p.
Schroeter, Tom; Cathro, Michael; Grieve, David; Lane, Robert; Pardy, Jamie; and Wojdak, Paul, 2006, British Columbia mining and mineral exploration overview 2005: British Columbia Ministry of Energy, Mines and Petroleum Resources Information Circular 2006-1, 20 p.
Sinclair, W.D., 2007, Porphyry Deposits, in Goodfellow, W.D., ed., Mineral deposits of Canada—A synthesis of major deposit-types, district metallogeny, the evolution of geological provinces, and exploration methods: Geological Association of Canada, Mineral Deposits Division, Special Publication no. 5, p. 223–243.
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/.