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Bronson Slope - Red Bluff

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

Names and other identifiers

GMRAP ID 9647
Tract name Intermontane Island-Arc (003pCu2001x)
Included sites Red Bluff, Reg, Red Bird, Johnny Mountain, Homestake, Mermaid, Cap, Bron, Iskut, Copper Queen, High
Site status deposit

Geographic location

Country Canada
State or province British Columbia
Geographic location -131.094419271, 56.666404719
Geologic map unit -131.094419271, 56.666404719
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Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 195Ma
Age determination method U-Pb zircon
Age range 195 Ma
Age reference unknown
Minerals chalcopyrite, pyrite, magnetite, molybdenite
Associated rocks porphyritic quartz diorite, quartz monzonite, and intermediate to felsic intrusions
Tectonic setting island arc
Stratigraphic age Early Jurassic

Commodity and development information

Development status Prospect
Major commodities Ag, Au, Cu
Minor commodities Mo
Tonnage (Mt) 130Mt
Cu grade (%) 0.16%
Mo grade (%) 0.008%
Au grade (g/t) 0.44g/t
Ag grade (g/t) 2.44g/t
Contained copper 210,000t
Gold-Moly ratio 60

Reference information

Study area name British Columbia and Yukon Territory
References MINFILE BC (2009); Schroeter (1995); Schroeter and others (2007); Singer and others (2008); James Logan (written commun., 2008); Skyline Gold Corp. (2009)
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.
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.
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/.Skyline Gold Corp., 2009: Skyline Gold Corp. Web page accessed 2009, at http://skylinegold.com.