Taseko

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

Names and other identifiers

GMRAP ID 9935
Alternate names Empress
Tract name Cordilleran Continental Arc (003pCu2004x)
Included sites Empress, Granite Creek, Lower North, Upper North, 76
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -123.400016018, 51.104405651
Geologic map unit -123.400016018, 51.104405651
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 86Ma
Age determination method K-Ar, Ar-Ar
Age range 86 Ma
Age reference unknown
Minerals bornite, chalcopyrite, hematite, magnetite, molybdenite, native gold, pyrite, pyrrhotite
Associated rocks quartz diorite, granodiorite, quartz monzonite
Tectonic setting continental margin
Stratigraphic age Late Cretaceous

Commodity and development information

Development status Prospect
Major commodities Cu, Au, Mo
Minor commodities Ag
Tonnage (Mt) 15Mt
Cu grade (%) 0.53%
Mo grade (%) 0.012%
Au grade (g/t) 0.53g/t
Contained copper 80,000t
Gold-Moly ratio 44

Reference information

Comments 1991, resource estimated.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Schroeter (1995); 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.
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/.