Berg

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

Names and other identifiers

GMRAP ID 9633
Tract name Cordilleran Continental Arc (003pCu2004x)
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -127.435017557, 53.803605208
Geologic map unit -127.435017557, 53.803605208
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Mo
Age (Ma) 48Ma
Age determination method K-Ar
Age range 48 Ma (K-Ar); 49 Ma (unknown method)
Age reference unknown (48 Ma); Sutherland Brown (1976, 49 Ma)
Minerals chalcopyrite, galena, molybdenite, pyrite, sphalerite, sulfosalt minerals
Associated rocks quartz monzonite porphyry, quartz diorite, quartz latite porphyry
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Prospect
Major commodities Cu, Mo, Ag
Tonnage (Mt) 651Mt
Cu grade (%) 0.284%
Mo grade (%) 0.036%
Au grade (g/t) 0.018g/t
Ag grade (g/t) 3.6g/t
Contained copper 1,850,000t
Gold-Moly ratio 0.5

Reference information

Comments 1980, resource estimated.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Sutherland Brown (1976); Schroeter (1995); Sinclair (2007); DeGrace and others (2008); Singer and others (2008); Terrane 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.
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.
Terrane Metals Corp., 2009a, Berg project: Terrane Metals Corp. Web page, accessed 2009, at http://www.terranemetals.com/s/Berg.asp. [Web page no longer available.]