Porphyry copper deposit in British Columbia, Canada

Names and other identifiers

Alternate names Nakinilerak Lake
Tract name Cordilleran Continental Arc (003pCu2004x)
Group name Dorothy-NAK Group
Included sites North zone, South zone; Group includes Dorothy and NAK deposits.
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -126.238117976, 55.286105396
Geologic map unit -126.238117976, 55.286105396
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 52Ma
Age determination method Ar-Ar
Age range 52 Ma
Age reference unknown
Minerals bornite, chalcopyrite, pyrite, magnetite
Associated rocks quartz diorite, granodiorite porphyry, hornblende-biotite-feldspar porphyry
Tectonic setting continental margin
Stratigraphic age Eocene

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 271Mt
Cu grade (%) 0.184%
Au grade (g/t) 0.133g/t
Contained copper 499,000t
Gold-Moly ratio -9999

Reference information

Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Pilcher and McDougall (1976); Sinclair (2007)
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
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.
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.