Williams Creek

Porphyry copper (Cu-Au) deposit in Yukon Territory, Canada

Names and other identifiers

GMRAP ID 9959
Alternate names Boy, Carmacks
Tract name Intermontane Island-Arc Cu-Au (003pCu2002x)
Included sites zone 1, zone 4, zone 12, zone 13
Site status deposit

Geographic location

Country Canada
State or province Yukon Territory
Geographic location -136.693623336, 62.348903757
Geologic map unit -136.693623336, 62.348903757
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age determination method Geologic inference
Age range Late Triassic–Early Jurassic
Age reference geologic inference
Minerals azurite, bornite, chalcopyrite, covellite, cuprite, digenite, djurlite, malachite, molybdenite, tenorite
Associated rocks silica undersaturated mafic metavolcanic gneiss pendants or ""rafts"" in granodiorite batholith
Tectonic setting island arc
Stratigraphic age Late Triassic–Early Jurassic

Commodity and development information

Development status Prospect
Major commodities Cu, Au, Ag
Minor commodities Mo
Tonnage (Mt) 19Mt
Cu grade (%) 0.95%
Au grade (g/t) 0.376g/t
Ag grade (g/t) 3.592g/t
Contained copper 183,000t
Gold-Moly ratio -9999

Reference information

Comments Alkaline porphyry Cu-Au in and around mafic metavolcanic pendants in foliated batholith.
Study area name British Columbia and Yukon Territory
References MINFILE YT (2009); Singer and others (2008); Western Copper Corp. (2009)
Site reference Mihalasky and others (2011, revised 2013)