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Occurrence Details


Occurrence Number
105D 209
Occurrence Name
Arctic Chief
Occurrence Type
Hard-rock
Status
Past Producer


General Information

Primary Commodities: copper, gold, silver
Secondary Commodities: gallium
Aliases: Whitehorse Copper
Deposit Type(s): Skarn
Location(s): 60.661390 N, -135.116990 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 Arctic Chief pendent is characterized by copper rich skarn mineralization along the contact of the Lewes River limestone and the Laberge group greywacke/quartzite. The skarn mineralization consists of born mineralization, chalcopyrite, magnetite, valleriite, chalcocite, tetrahedrite, cuprite and pyrite. The calc-silicate minerals include serpentinite, phlogopite, red garnet, and rare wollastonite.

Production from both the East and West pits totals 230 000 tonnes of ore grading 1.44% copper, 1.03 g/t gold and 17.14 g/t silver. The Arctic Chief deposit contained the highest grades in the Whitehorse Copper Belt. 

Location Map

Last Updated: Apr 15, 2019

Work History

Year Work Type Comment
2010 Drilling: Diamond 1 hole completed
2010 Geochemistry: Drill Core
1977 Drilling: Diamond 7 holes completed
1976 Drilling: Diamond 1 hole completed
1976 Geochemistry: Drill Core
1973 Geology: Bedrock Mapping
1973 Lab Work/Physical Studies: Petrographic
1967 Drilling: Diamond
1966 Studies: Feasibility
1964 Drilling: Diamond
1963 Drilling: Diamond
1963 Ground Geophysics: Magnetics

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup:
Group/Suite: Lewes River
Formation: Aksala
Member: Hancock
Terrane: Stikinia
Period Max: Triassic
Age Max: 217 MA
Period Min: Triassic
Age Min: 204 MA
Rock Major: conglo/limestone/dolostone
Rock Minor: chert
Reference: Hart & Radloff (1990) - YGS OF 1990-4
Geological Unit (1M): uTrAK
Geological Unit (250K): uTrAK2

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
091229 1976 [Diamond Drilling on the Arctic Chief Property] Diamond - Drilling, Drill Core - Geochemistry 1 212.44
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
091123 1964 Summary of assessment work for 316 claims Diamond - Drilling 46 3652.57

Related References

Number Title Page(s) Document Type
1984-1 The Whitehorse Copper Belt - A Compilation Open File (Geological - Bedrock)
091229 [Diamond Drilling on the Arctic Chief Property] Assessment Report
091125 [Drilling on the Parke, Ross, Zircon, Jean, Jay and New Claims] Assessment Report
091123 Summary of assessment work for 316 claims Assessment Report
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
ARMC004831 Map sections - 9850 N looking north and 9250 looking north of Arctic Chief and Little Chief Geoscience Map (General)
ARMC004828 Map sections - 9850 and 9250 - Arctic Chief and Little Chief Geoscience Map (General)
ARMC004829 Map of mineral claims - Arctic Chief Geoscience Map (General)
ARMC004825 Correspondence Re: Arctic Chief exploration Miscellaneous Company Documents
ARMC004827 General geology map - Arctic Chief and Best Chance Geoscience Map (Geological - Bedrock)
ARMC004869 Correspondence Re: Sulphur isotope analyses on the Arctic Chief samples Miscellaneous Company Documents
ARMC004805 Map of Valerie, Arctic Chief, and War Eagle Geoscience Map (General)
ARMC014221 Claim map - North Star-Arctic Chief Geoscience Map (General)
ARMC004830 General geology map - Arctic Chief and Best Chance Geoscience Map (Geological - Bedrock)
ARMC004826 Properties in the central part of the belt - Arctic Chief Report
ARMC004833 Outcrop geology map - Arctic Chief Geoscience Map (Geological - Bedrock)
ARMC004832 Vertical longitudinal section map - looking east - Arctic Chief Geoscience Map (General)
Citations
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, 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)
YMEP 2010-054, R. Stroshein, Technical Report on the Diamond Drilling Target Evaluation on the Arctic Chief Pendant

Drill Core at YGS Core Library

Number Property Year Drilled Core Size Photos Data
AC-10 Arctic Chief 1976 BQ 6 0
AC-11 Arctic Chief 1976 BQ 6 0
AC-12 Arctic Chief 1976 BQ 10 0
AC-13 Arctic Chief 1976 BQ 6 0
AC-14 Arctic Chief 1976 BQ 6 0
AC-15 Arctic Chief 1976 BQ 4 0
AC-16 Arctic Chief 1976 BQ 6 0
AC-17 Arctic Chief 1976 BQ 6 0
AC-18 Arctic Chief 1976 BQ 10 0
AC-19 Arctic Chief 1976 BQ 6 0
AC-2 Arctic Chief 1976 BQ 6 0
AC-20 Arctic Chief 1976 BQ 6 0
AC-21 Arctic Chief 1976 BQ 12 0
AC-22 Arctic Chief 1976 BQ 6 0
AC-23 Arctic Chief 1976 BQ 8 0
AC-24 Arctic Chief 1976 BQ 6 0
AC-25 Arctic Chief 1976 BQ 8 0
AC-26 Arctic Chief 1976 BQ 6 0
AC-27 Arctic Chief 1976 BQ 6 0
AC-28 Arctic Chief 1976 BQ 6 0
AC-29 Arctic Chief 1976 BQ 10 0
AC-3 Arctic Chief 1976 BQ 6 0
AC-30 Arctic Chief 1976 BQ 6 0
AC-31 Arctic Chief 1976 BQ 6 0
AC-32 Arctic Chief 1976 BQ 6 0
AC-33 Arctic Chief 1976 BQ 12 0
AC-34 Arctic Chief 1976 BQ 12 0
AC-35 Arctic Chief 1976 BQ 6 0
AC-36 Arctic Chief 1976 BQ 6 0
AC-37 Arctic Chief 1976 BQ 6 0
AC-39 Arctic Chief 1976 BQ 18 0
AC-4 Arctic Chief 1976 BQ 6 0
AC-40 Arctic Chief 1976 BQ 12 0
AC-5 Arctic Chief 1976 BQ 10 0
AC-6 Arctic Chief 1976 BQ 4 0
AC-7 Arctic Chief 1976 BQ 10 0
AC-8 Arctic Chief 1976 BQ 4 0
AC-9 Arctic Chief 1976 BQ 6 0
AC-IH1 Arctic Chief 1976 BQ 8 0

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