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Occurrence Details


Occurrence Number
105D 230
Occurrence Name
Cowley Park
Occurrence Type
Hard-rock
Status
Deposit


General Information

Primary Commodities: copper, gold, silver, molybdenum
Aliases: Whitehorse Copper
Deposit Type(s): Skarn
Location(s): 60.575190 N, -134.892020 W
NTS Mapsheet(s): 105D10
Hand Samples Available at YGS: No

Capsule

The Whitehorse Copper Belt is located west of Whitehorse and contains 30+ mines, deposits and showings. By 1900, most of the important deposits had been discovered and the first small ore shipment was made that year. 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 Cowley Park deposit is a skarn zone located within an easterly trending band of limestone surrounded by hornblende granite. The limestone mass that makes up the Cowley Park deposit is around 3000 ft. (914 m) and reaches a maximum of 1200 ft. (366 m). The skarn is copper stained, and copper minerals include bornite and chalcopyrite. Mineralization includes andradite, epidote, calcite, quartz, magnetite, wollastonite, and minor molybdenite.

A reserve estimate from 1971 concluded that there is 885 047 tonnes of ore at 0.89% Cu.

Location Map

Last Updated: Apr 15, 2019

Work History

Year Work Type Comment
2014 Pre-existing Data: Research/Summarize
2008 Drilling: Diamond
1998 Geochemistry: Rock
1998 Geochemistry: Soil
1998 Ground Geophysics: IP
1974 Drilling: Diamond
1974 Geochemistry: Drill Core
1974 Ground Geophysics: IP
1974 Other: Property Evaluation
1973 Drilling: Diamond
1973 Geochemistry: Drill Core
1971 Drilling: Diamond
1971 Geochemistry: Drill Core
1968 Drilling: Diamond
1968 Geochemistry: Drill Core
1968 Geology: Bedrock Mapping
1968 Ground Geophysics: EM
1968 Ground Geophysics: Magnetics
1967 Ground Geophysics: IP
1966 Studies: Feasibility
1965 Drilling: Diamond
1965 Geology: Bedrock Mapping
1964 Drilling: Diamond
1964 Ground Geophysics: IP

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: quartz monzonite/granite/monzonite/syenite/granodiorite/quartz diorite
Rock Minor: ash
Reference: Wheeler (1961) - GSC Map 1093A
Geological Unit (1M): mKW
Geological Unit (250K): mKqW

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
097233 2018 Drilling Assessment Report on the Cowley Park Property Diamond - Drilling 16 2493.26
097049 2017 Drilling Assessment Report on the Cowley Park property Diamond - Drilling, Diamond - Drilling 9 1559
096680 2014 Summary Report Documenting the Cowley, Keewenaw and Gem Copper Deposits on the Lobo Property Research/Summarize - Pre-existing Data
095193 2008 Drilling and Geophysical Assessment Report on the Whitehorse Copper Belt Project Diamond - Drilling, Drill Core - Geochemistry, IP - Ground Geophysics 21 2134.10
094024 1998 [Geological Report on the Sue,Jim,Ace,Dennis,Gem and Lobo Claims] Rock - Geochemistry, Soil - Geochemistry
094011 1997 Assessment Report Describing Geological and Geochemical Sampling on the Luc 1-27 and Cowley 4-5 Claims Rock - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other
090823 1980 [Diamond Drill Log - Whitehorse Copper Belt] Diamond - Drilling, Drill Core - Geochemistry 7 1208.83
091121 1979 [Diamond Drilling on the Jim and Sue Mineral Claims] Diamond - Drilling 8 872
091120 1978 [Drilling on the Sue 3 and 4 Claims, Whitehorse Copper Belt] Diamond - Drilling 2 300.84
061253 1975 Report on Induced Polarization Survey in the Whitehorse Area IP - Ground Geophysics
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
061173 1974 Report on Exploratory Work on Whitehorse Copper Belt Diamond - Drilling, Drill Core - Geochemistry, IP - Ground Geophysics 10 2222.29
091119 1973 [Diamond Drilling on the Sue and Jim Claims] Diamond - Drilling, Drill Core - Geochemistry 5 787.29
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
091118 1971 [Drilling on the Sue and Jean Claims] Diamond - Drilling, Drill Core - Geochemistry 66 84.12
090945 1970 [Drilling, Stripping and Road Construction on the Whitehorse Copper Belt Project] All Weather Road - Development, Surface, Drifting/Raising - Development, Underground, Diamond - Drilling 5 206.96
060526 1968 [Drilling in the Cowley Park Area, Whitehorse Copper Belt] Diamond - Drilling, Drill Core - Geochemistry 64 79.25
062227 1966 An Evaluation of the New imperial Mines Ltd. Feasibility - Studies

Related References

Number Title Page(s) Document Type
1984-1 The Whitehorse Copper Belt - A Compilation Open File (Geological - Bedrock)
094024 [Geological Report on the Sue,Jim,Ace,Dennis,Gem and Lobo Claims] Assessment Report
095193 Drilling and Geophysical Assessment Report on the Whitehorse Copper Belt Project Assessment Report
061172 [Proposed 1974 Exploration of the Cowley Park and War Eagle Properties] Assessment Report
062227 An Evaluation of the New imperial Mines Ltd. Assessment Report
092025 [Proposed 1974 Exploration of the Cowley Park and War Eagle Properties] Assessment Report
091119 [Diamond Drilling on the Sue and Jim Claims] Assessment Report
061173 Report on Exploratory Work on Whitehorse Copper Belt Assessment Report
060526 [Drilling in the Cowley Park Area, Whitehorse Copper Belt] Assessment Report
091118 [Drilling on the Sue and Jean Claims] Assessment Report
061253 Report on Induced Polarization Survey in the Whitehorse Area Assessment Report
ARMC004779 Sketch maps of Cowley Park area Geoscience Map (General)
ARMC004845 Exploration composite map - Cowley Park Geoscience Map (General)
ARMC004855 Correspondence Re: Cowley Park - Surface drilling Miscellaneous Company Documents
ARMC004849 Location map - Cowley Park Geoscience Map (General)
ARMC004848 Map - Section 80E - Cowley Park Geoscience Map (General)
ARMC004854 Correspondence Re: Mining of Cowley Park Miscellaneous Company Documents
ARMC004852 Correspondence Re: Cowley Park Miscellaneous Company Documents
ARMC004851 Correspondence Re: Cowley Park south zone reserves Miscellaneous Company Documents
ARMC004844 Exploration composite map - Keewenaw and Cowley Park - Figure 7 Geoscience Map (General)
ARMC004847 G816 proton magnetometer map - Cowley Park Geophysical Map
ARMC004834 Exploration composite map - Keewenaw and Cowley Park Geoscience Map (Geological - Bedrock)
ARMC004846 Sketch map showing the area of mineralization - Cowley Park 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 1964; Green, L H. Geological Survey of Canada, Paper 65-19, 1965, 94 pages, https://doi.org/10.4095/100981 (Open Access)
The mineral industry of Yukon Territory and southwestern district of Mackenzie 1967; Findlay, D C. Geological Survey of Canada, Paper no. 68-68, 1969, 140 pages, https://doi.org/10.4095/102253 (Open Access)
The mineral industry of Yukon Territory and southwestern District of Mackenzie, 1965; Green, L H. Geological Survey of Canada, Paper 66-31, 1966, 145 pages, https://doi.org/10.4095/100943 (Open Access)
The mineral industry of Yukon Territory and southwestern District of Mackenzie, 1968; Findlay, D C. Geological Survey of Canada, Paper 69-55, 1969, 71 pages, https://doi.org/10.4095/106435 (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)
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)
W. Wengzynowski, Summary Report Documenting the Cowley, Keewenaw and Gem Copper Deposits on the Lobo Property, 2014, AR096680

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