Galaxy

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

Names and other identifiers

GMRAP ID 9708
Alternate names Galaxy Copper
Tract name Intermontane Island-Arc Cu-Au (003pCu2002x)
Group name Afton-Ajax Group
Included sites Group includes Afton, Ajax JV, Big Onion, DM-Audra-Crescent, Galaxy, Iron Mask, and Rainbow deposits and Ace, Admiral Dewy, Crescent, Fargo, Kimberly, and Python prospects.
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -120.423315377, 50.643305988
Geologic map unit -120.423315377, 50.643305988
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 205Ma
Age determination method Inferred from U-Pb zircon age for Afton
Age range 205 Ma
Age reference unknown
Minerals bornite, chalcopyrite, magnetite, pyrite
Associated rocks gabbro, diorite, microdiorite, monzonite, micromonzonite
Tectonic setting island arc
Stratigraphic age Late Triassic

Commodity and development information

Development status Past Producer
Major commodities Cu, Au
Tonnage (Mt) 5Mt
Cu grade (%) 0.59%
Au grade (g/t) 0.21g/t
Contained copper 32,000t
Gold-Moly ratio -9999

Reference information

Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Pilcher and McDougall (1976); Schroeter and others (2007); Sinclair (2007); Singer and others (2008); Discovery-Corp Enterprises Inc. (2008)
Site reference Mihalasky and others (2011, revised 2013)
Discovery-Corp Enterprises Inc., 2008: Discovery-Corp Enterprises Inc. Web page accessed 2008, at http://www.discovery-corp.com.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/.
Pilcher, S.H., and McDougal, J.J., 1976, Characteristics of some Canadian Cordilleran porphyry prospects: in Sutherland Brown, A., ed., Porphyry deposits of the Canadian Cordillera: The Canadian Institute of Mining and Metallurgy, Special Volume 15, the Charles S. Ney Volume, p. 79–82.
Schroeter, Tom; Grieve, David; Lane, Robert; Madu, Bruce; Northcote, Bruce; and Wojdak, Paul, 2007, British Columbia mining and mineral exploration overview 2006: British Columbia Ministry of Energy, Mines and Petroleum Resources Information Circular 2007-1, 28 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/.