Grey Mask

Porphyry copper prospect in British Columbia, Canada

Names and other identifiers

GMRAP ID 9740
Alternate names Amakua
Tract name Intermontane Island-Arc Cu-Au (003pCu2002x)
Site status prospect

Geographic location

Country Canada
State or province British Columbia
Geographic location -120.297515337, 50.581406
Geologic map unit -120.297515337, 50.581406
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 205Ma
Age determination method Inferred from U-Pb zircon age for Afton
Age range 205 Ma
Age reference unknown
Minerals bornite, chalcopyrite, hematite, magnetite, native copper, pyrite
Associated rocks diorite, diorite breccia
Tectonic setting island arc
Stratigraphic age Late Triassic

Commodity and development information

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

Reference information

Comments Grades: 1.1 percent Cu, 3.28 g/t Au.
Study area name British Columbia and Yukon Territory
References MINFILE BC (2009)
Site reference Mihalasky and others (2011, revised 2013)