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Occurrence Details


Occurrence Number
105D 207
Occurrence Name
Valerie
Occurrence Type
Hard-rock
Status
Past Producer


General Information

Primary Commodities: copper, gold
Aliases: Whitehorse Copper
Deposit Type(s): Skarn
Location(s): 60.631210 N, -135.061180 W
NTS Mapsheet(s): 105D11
Hand Samples Available at YGS: No

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 Valerie deposit occurs at the contact between the Whitehorse batholith granite and Lewes River limestone. The deposit contains minerals such as pyrite, pyrrhotite, chalcopyrite, magnetite, augite, garnet and calcite. The deposit is outlined by a geophysical anomaly that is 450ft (137 m) long. In the immediate vicinity to the north, geophysical work has identified 4 more anomalies totalling 1200ft (366 m) in 2800ft (853 m). Drilling in 1963-64 encountered copper magnetite mineralization.

Production between 1899 and 1907 totalled 127 tonnes at 1.65% Cu and 0.68 g/t Au. Elements such as cobalt, nickel, palladium and platinum were detectable during assay.

Location Map

Last Updated: Apr 15, 2019

Work History

Year Work Type Comment
1974 Drilling: Diamond
1974 Geochemistry: Drill Core
1974 Ground Geophysics: IP
1973 Drilling: Diamond 1 hole completed
1973 Geology: Bedrock Mapping
1973 Lab Work/Physical Studies: Petrographic
1973 Pre-existing Data: Research/Summarize
1969 Studies: Feasibility
1966 Studies: Feasibility
1964 Drilling: Diamond
1963 Drilling: Diamond 3 holes completed
1963 Ground Geophysics: Magnetics

Regional Geology - Terrane

Group: Intermontane
Affinity: W Laurentia
Name: Stikinia
Realm: peri-Laurentian


Regional Geology - Bedrock

Supergroup:
Group/Suite: Whitehorse
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 112 MA
Period Min: Cretaceous
Age Min: 105 MA
Rock Major: granodiorite/quartz diorite
Rock Minor:
Reference: Hart & Radloff (1990) - YGS OF 1990-4
Geological Unit (1M): mKW
Geological Unit (250K): mKgW

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
061173 1974 Report on Exploratory Work on Whitehorse Copper Belt Diamond - Drilling, Drill Core - Geochemistry, IP - Ground Geophysics 10 2222.29
060525 1973 [Proposed Surface Drill Programs on the Little Chief-Big Chief-Valerie Properties] Research/Summarize - Pre-existing Data
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
062228 1969 Feasibility Study for the Underground Development of the Little Chief Orebody Feasibility - Studies
092558 1967 [Drilling of the Little Chief Orebody] Diamond - Drilling 21
062227 1966 An Evaluation of the New imperial Mines Ltd. Feasibility - Studies
091123 1964 Summary of assessment work for 316 claims Diamond - Drilling 46 3652.57

Related References

Number Title Page(s) Document Type
060525 [Proposed Surface Drill Programs on the Little Chief-Big Chief-Valerie Properties] Assessment Report
1984-1 The Whitehorse Copper Belt - A Compilation Open File (Geological - Bedrock)
062227 An Evaluation of the New imperial Mines Ltd. Assessment Report
062018 Preliminary Report on Geological Control to Ore Distribution in the Whitehorse Copper Belt Assessment Report
091123 Summary of assessment work for 316 claims Assessment Report
062228 Feasibility Study for the Underground Development of the Little Chief Orebody Assessment Report
061173 Report on Exploratory Work on Whitehorse Copper Belt Assessment Report
ARMC004893 Magnetic survey map - sheet 460N/610E - Big, Middle & Little Chief and Valerie claims Geophysical Map
ARMC014222 Claim map with grid - Valerie-North Star Geoscience Map (General)
ARMC004791 Summary and map - Valerie Report
ARMC004797 Map showing Valerie, Big Chief, Little Chief Geoscience Map (General)
ARMC004805 Map of Valerie, Arctic Chief, and War Eagle Geoscience Map (General)
Citations
Kindle, E.D., “Summary of Research: Field, 1962”; Geological Survey of Canada, Paper no. 63-1, 1963, https://doi.org/10.4095/121464 (Open Access)
The mineral industry of Yukon Territory and southwestern District of Mackenzie, Northwest Territories, 1963; Godwin, C I; Green, L H. Geological Survey of Canada, Paper 64-36, 1964, 94 pages, https://doi.org/10.4095/101004 (Open Access)

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
DDH-V-19 Valerie 1974 NTW-BTW 62 0
DDH-V-17 Valerie 1973 AQ 0 2

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