Deep Gulch

Porphyry copper prospect in British Columbia, Canada

Names and other identifiers

GMRAP ID 9686
Tract name Intermontane Island-Arc Cu-Au (003pCu2002x)
Group name Copper Mountain Group
Included sites Group includes Alabama and Copper Mountain deposits and Deep Gulch, Duke of York, Fraser, Friday Creek, ILK, Jennie Silkman, June Bug, Marquis of Lorne, Oriole, Oronoco, Ray, Reco, Virginia, and Voigt prospects.
Site status prospect

Geographic location

Country Canada
State or province British Columbia
Geographic location -120.55721503, 49.314205905
Geologic map unit -120.55721503, 49.314205905
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 204Ma
Age determination method Inferred from U-Pb zircon age for Copper Mountain
Age range 204 Ma (U-Pb zircon); 193 Ma (K-Ar)
Age reference unknown
Minerals bornite, chalcocite, chalcopyrite, magnetite, malachite, pyrite
Associated rocks pyroxene diorite, monzodiorite, monzonite, syenite
Tectonic setting island arc
Stratigraphic age Late Triassic–Early Jurassic

Commodity and development information

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

Reference information

Comments Low-grade Cu-Au over 1- to 20-m widths in trenches, 3-m intervals in drill holes; 2400 m of trenches, 923 m core holes. Grades: 0.79 percent Cu, 1.37 g/t Au.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009)
Site reference Mihalasky and others (2011, revised 2013)