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Porphyry copper deposit in British Columbia, Canada

Names and other identifiers

GMRAP ID 9660
Alternate names Cliff
Tract name Cordilleran Continental Arc (003pCu2004x)
Included sites Cliff, Hecate Bay, Irishman Creek, North Irishman Creek
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -125.980815871, 49.256405273
Geologic map unit -125.980815871, 49.256405273
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Geologic information

Deposit type Porphyry copper
Age (Ma) 49Ma
Age determination method K-Ar
Age range 49 Ma (K-Ar); 48 Ma (unknown method)
Age reference unknown (49 Ma); Sutherland Brown (1976, 48 Ma)
Minerals bornite, chalcocite, chalcopyrite, covellite, cuprite, digenite, molybdenite, native gold, pyrite, scheelite, tenorite, vallerite
Associated rocks porphyritic granodiorite, quartz diorite
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Prospect
Major commodities Cu, Mo
Tonnage (Mt) 308Mt
Cu grade (%) 0.37%
Mo grade (%) 0.007%
Au grade (g/t) 0.05g/t
Contained copper 1,100,000t
Gold-Moly ratio 7

Reference information

Comments 1990, resource first estimated; cliff zone open to south.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Sutherland Brown (1976); Schroeter (1995); Sinclair (2007); DeGrace and others (2009); Singer and others (2008); Selkirk Metals Corp. (2009)
Site reference Mihalasky and others (2011, revised 2013)
DeGrace, John; Grant, Brian; Grieve, David; Lefebure, David; Madu, Bruce; Northcote, Bruce; and Wojdak, Paul, 2008, British Columbia mining and mineral exploration overview 2007—British Columbia Ministry of Energy, Mines and Petroleum Resources, Information Circular 2008-1, 30 p. (Also available online at http://www.empr.gov.bc.ca/Mining/Geoscience/PublicationsCatalogue/MineralExplorationReview/Documents/EX-REVIEW_IC2008-1.pdf.)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.
Selkirk Metals Corp., 2009, Catface: Selkirk Metals Corp. Web page, accessed 2009, at http://selkirkmetals.com/s/Catface.asp [September 15th, 2009, acquired by Imperial Metals, Web page accessed August, 2011, at http://selkirkmetals.com/s/Catface_new.asp.]
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/.
Sutherland Brown, A., 1976, ed., Porphyry deposits of the Canadian Cordillera: The Canadian Institute of Mining and Metallurgy, Special Volume 15, the Charles S. Ney Volume, 510 p., 2 pl., scale 1:250,000,000.