Occurrence Details


Occurrence Number:
105D 220
Occurrence Name:
Railway
Occurrence Type:
Hard-rock
Status:
Prospect
Date printed:
4/28/2025 5:43:00 PM

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General Information
Capsule
Assessment Reports
References

General Information

Secondary Commodities: copper
Aliases: Whitehorse Copper
Deposit Type(s): Skarn
Location(s): 60°34'39" N - -134°55'44.2" W
NTS Mapsheet(s): 105D10
Hand Samples Available: No
Last Reviewed:

Capsule

The Whitehorse Copper Belt is located west of Whitehorse and contains 30+ mines, deposits and showings. Many of the occurrences in the Copper Belt are skarns. The skarns form on or near the contact between the Whitehorse batholith and the Lewes River group. The Whitehorse batholith is commonly a grey coarse-grained hornblende granite and ranges from quartz monzonite to granodiorite to diorite. The Lewes River group contains numerous different rock types, most importantly of which is the limestone group, which is essential in the formation of skarns in the area.  A small number of occurrences within the Copper Belt are vein and/or replacement and occur within the Whitehorse batholith granite.

The magnetite rich skarn occurs at the contact between the Lewes River limestone and the Whitehorse batholith hornblende rich granite. The contact zone is marked by irregular zones of coarsely (up to 6 inches) crystalline black actinolite and grey clinopyroxene. Magnetite, epidote and chalcopyrite are also present. Assays returned 0.15% Cu, and 49.86% Fe.

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
092025 1974 [Proposed 1974 Exploration of the Cowley Park and War Eagle Properties] Property Evaluation - Other
061172 1974 [Proposed 1974 Exploration of the Cowley Park and War Eagle Properties] Property Evaluation - Other
062018 1973 Preliminary Report on Geological Control to Ore Distribution in the Whitehorse Copper Belt Reverse Circulation - Drilling, Bedrock Mapping - Geology, Petrographic - Lab Work/Physical Studies 665 5555
062227 1966 An Evaluation of the New imperial Mines Ltd. Feasibility - Studies

Related References

Number Title Page(s) Reference Type Document Type
1984-1 The Whitehorse Copper Belt - A Compilation Indian & Northern Affairs Canada/Department of Indian & Northern Development: Exploration & Geological Services Division Open File (Geological - Bedrock)