Gem Lake, Porphyry copper prospect

Gem Lake

Porphyry copper prospect in British Columbia, Canada

Names and other identifiers

GMRAP ID	9725
Alternate names	MEG
Tract name	Cordilleran Continental Arc (003pCu2004x)
Site status	prospect

Geographic location

Country	Canada
State or province	British Columbia
Geographic location	-125.410815908, 49.684405356 (click for info)
Geologic map unit	-125.410815908, 49.684405356
Nearby data	List Map

Geologic information

Deposit type	Porphyry copper
Age (Ma)	49Ma
Age determination method	Inferred from K-Ar age for Catface
Age range	49 Ma
Age reference	unknown
Minerals	chalcopyrite, magnetite, molybdenite, pyrite, pyrrhotite
Associated rocks	quartz diorite, granodiorite
Tectonic setting	continental margin
Stratigraphic age	Eocene

Commodity and development information

Development status	Occurrence
Major commodities	Cu, Au, Ag
Minor commodities	Mo
Gold-Moly ratio	-9999

Reference information

Comments	Grades: 1 percent Cu.
Study area name	British Columbia and Yukon Territory
References	MINFILE BC (2009); Pilcher and McDougall (1976)
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/.

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. 7982.