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Occurrence Details


Occurrence Number
105M 010
Occurrence Name
Vanguard
Occurrence Type
Hard-rock
Status
Deposit


General Information

Primary Commodities: silver, lead
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 63.922890 N, -135.2286 W
NTS Mapsheet(s): 105M14
Location Comments: location coordinates provided by Alexco
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Vanguard cl (13258) in Jul/20 by A. Nicol, who carried out trenching and shafting: surveyed the claims and took them to lease; shipped 11.6 tonnes of hand-cobbed ore in 1934; and shipped a further 31.8 tonnes of ore in 1948-49.
Optioned to Canex Exploration Ltd in Oct/50; to Amco Exploration Inc from Jun/52 to Feb/53; and to C. Warm in 1962, who carried out 91.4 m of cross-cutting in 1962-63.
The Vanguard claim and a number of adjoining claims, including the Quest cl (56622) and Quill cl (59273) to the east, were acquired by Canada Tungsten Mining Corporation Ltd in Mar/79. Canada Tungsten carried out prospecting, geological mapping and geochemical rock sampling of the claims in Jun/79.
Ownership was transferred to Springmount Operating Company Ltd in 1987.

Capsule Geology

Silver-lead-zinc mineralization in the Elsa-Keno Hill mining camp occurs in north-northeast to east-northeast striking, steeply southeast dipping vein-faults located within a 23 km long by 6 km wide northeast trending belt of rocks on the south dipping limb of the McQuesten Antiform. The mineralized vein faults cut Devonian to Mississippian Earn Group phyllites, Mississippian Keno Hill quartzite and minor phyllite and Triassic meta-diorites. The vein-faults, are brittle displacement zones that show complex variations in style along their length. Narrow discrete planar fault segments pass into zones of tensional veining or shattered rock, brecciation and stockwork veining. The richest deposits occur in the vein-faults which cut the Keno Hill quartzites.
The Vanguard vein is a typical transverse vein-fault which cuts Keno Hill quartzite. Mineralization consists of galena and tetrahedrite in a carbonate gangue, with the ore grade material developed immediately above a flat lying fault of unknown offset. The grade of the ore from this vein is reported as 8 159.8 g/t Ag and 65% Pb for 1934 shipment and 10 285.4 g/t Ag and 51% Pb for the 1948-49 shipment.
Canada Tungsten reported that the adjoining claims were also underlayen by Keno Hill quartzite and that unmineralized white bull quartz veins up to 15 cm wide were widespread on the Quest claim. On the southeastern portion of the Quill claim, a small pit and a yellowish colored gossan zone in an outcrop of quartz-sericite schist was sampled for gold, but the assay results were not available at the time the company reported on the work in 1979.

References

BOND, J.D., 1998. Surficial geology of Keno Hill, Central Yukon, NTS 105M14. Exploration and Geological Services Division, Indian and Northern Affairs, Canada, Geoscience Map 1998-4, 1:50 000-scale map.

CANADA TUNGSTEN MINING CORPORATION LTD, Aug/79. Assessment Report #090951 by T.M. Elliot.

CANADA TUNGSTEN MINING CORPORATION LTD, Aug/79. Assessment Report #090952 by T.M. Elliot.

DEBECKIE, R.L. 1983. Yukon Mineral Industry 1941 to 1959; Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 53.

GEOLOGICAL SURVEY OF CANADA Bulletin 111, p. 47.

GEOLOGICAL SURVEY OF CANADA Paper 63-38, p. 11.

MURPHY, D.C. and ROOTS, C.F., 1996. Geological map of Keno Hill area, Central Yukon (105M/14). Exploration and Geological Services Division, Indian and Northern Affairs Canada, Geoscience Map 1996-5, scale-1:50 000.

MURPHY, D.C., 1997. Geology of the McQuesten River Region, Northern McQuesten and Mayo Map Areas, Yukon Territory (115P/14, 15,16; 105M/13, 14). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Bulletin 6, 122 p.

ROOTS, C.F., 1997. Bedrock geology of Mayo map area, central Yukon (105M). Exploration and Geological Services Division, Indian and Northern Affairs Canada, Geoscience Map 1997-1, 1:50 000-scale.

ROOTS, C.F., 1997. Geology of the Mayo Map Area, Yukon Territory (105M). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Bulletin 7, 82 p.

Location Map

Last Updated: Apr 1, 2021

Work History

Year Work Type Comment
2019 Geochemistry: Rock
2019 Geochemistry: Soil
2019 Geology: Bedrock Mapping
2019 Other: Prospecting
2006 Airborne Geophysics: Electromagnetic
2006 Airborne Geophysics: Magnetic
2006 Airphotography: Interpretation
2006 Airphotography: Orthophoto
2006 Pre-existing Data: Digitizing Data
2006 Remote Sensing: Photogrammetry
1979 Geology: Bedrock Mapping
1962 Other Amount of work done: 91.4 METRES
1949 Other Amount of work done: 5.7 TONNES
1948 Other Amount of work done: 26.2 TONNES
1934 Other Amount of work done: 11.6 TONNES
1920 Other
1920 Other Work began in 1920 and continued sporadically until at least 1949.
1920 Trenching: Hand

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Tsichu
Formation: Keno Hill
Member:
Terrane: Laurentia
Period Max: Carboniferous
Age Max: 345 MA
Period Min: Carboniferous
Age Min: 328 MA
Rock Major: shale/quartzite
Rock Minor:
Reference: Roots (1997) - YGS GM 1997-1
Geological Unit (1M): CT
Geological Unit (250K): CT2

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096732 2014 Assessment Report Describing Metallurgical Test Pits, Metallurgical Auger Drilling, Geotechnical Auger Drilling, Geotechnical Study, Environmental Baseline Studies, Heritage Evaluation, and Water Quality and Climate Monitoring Surveys Auger - Drilling, Water - Geochemistry, Metallurgical Tests - Lab Work/Physical Studies, Environmental Assessment/Impact - Studies, Geotechnical - Studies, Heritage/Archeological - Studies 9 96.77
095932 2011 Assessment Report on the 2011 Keno-Lighting Geophysical, Trench Mapping, Soil Geochemistry and Diamond Drilling Program Electromagnetic - Airborne Geophysics, Reclamation - Development, Surface, Diamond - Drilling, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Environmental Assessment/Impact - Studies 25 1819.30
094943 2006 2006 Geological, Aerial Photography and Orthophoto Assessment Report on the Keno Hill Property Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Interpretation - Airphotography, Orthophoto - Airphotography, Digitizing Data - Pre-existing Data, Photogrammetry - Remote Sensing
090564 1979 Geological, Geochemical, and Geophysical Report Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Seismic - Ground Geophysics, Research/Summarize - Pre-existing Data

Related References

Number Title Page(s) Document Type
ARMC007479 Correspondence Re: Strebchuck Alberta group Miscellaneous Company Documents
ARMC007480 Correspondence Re: Vanguard group, Keno Hill Miscellaneous Company Documents
ARMC007352 Correspondence Re: Vanguard group, Keno Hill Miscellaneous Company Documents
Citations
Cathro, R. J., 2006. Great mining camps of Canada, 1. The History and geology of the Keno Hill Silver Camp, Yukon Territory. Geoscience Canada Series, vol. 33, no. 3.
Geological Survey of Canada, Summary Reports, 1920 to 1940.
United Keno Hill Mines Ltd., Annual Reports, 1960–1965, 1967, 1969–1971, 1973, 1978–1980, 1983, 1986–1987, 1989, 1994–1995.
Yukon Exploration and Geology, mining and exploration overview, 1979–2009.
Zuckerkandel, W., 1991. The ore potential of the United Keno Hill Mines Ltd., Elsa, Yukon: a critical review and recommendations for exploration.

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