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Occurrence Details


Occurrence Number
105M 005
Occurrence Name
Silver Basin
Occurrence Type
Hard-rock
Status
Prospect


General Information

Primary Commodities: silver
Secondary Commodities: gold, lead
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 63.951870 N, -135.1825 W
NTS Mapsheet(s): 105M14
Location Comments: location coordinates provided by Alexco
Hand Samples Available at YGS: No

Capsule

Work History

Staked as the Silver Basin cl (12836) in Aug/19 by R. Rasmussen, who explored with hand trenches and a short adit until 1927. It was purchased in Nov/48 by Silver Basin Yukon ML. which reorganized in 1949 into Cons. Yukeno ML, and to Yukeno ML in Feb/51. The claim was taken to lease (Lot 41) in Feb/58 and was sold in 1962 to Rio Plata Silver ML, which conducted hand trenching in 1963 and possibly geochem sampling in 1973.
The Silver Queen and Ladie cl (Y6627) were staked immediately to the southwest of this occurrence sometime prior to 1971. Canadian Reserve Oil and Gas Ltd carried out geophysical surveying of these claims during 1971.
The Silver Basin claims were acquired by Dawson Eldorado ML in 1986 and explored with bulldozer trenching.
W. Malicky staked Silver Cirque cl (YB65552) on the east side of Lot 41 in Jul/96.

Capsule Geology

Minor galena and tetrahedrite occur with arsenopyrite in quartz-siderite gangue in a typical longitudinal-type branching vein system that cuts mainly quartzite and minor schist. The vein has a maximum width of 2.4 m and has been traced for 30 m. Rasmussen claimed to have identified three longitudinal and 3 transverse veins on the claim and to have obtained assays as high as 171 424 g/t Ag from grab samples.
Dawson Eldorado reported assays ranging from 171.4 to 2 057.1 g/t Ag across widths of 0.5 to 2.5 m with specimens assaying up to 754.7 g/t Ag and 13.7 g/t Au.

References

CANADIAN RESERVE OIL AND GAS LTD, Apr/72. Assessment Report *#060941 by E.J. Wilson.

DAWSON DAILY NEWS, 27 Nov/22.

GEOLOGICAL SURVEY OF CANADA Bulletin 111, p. 51.

GEOLOGICAL SURVEY OF CANADA Summary Report 1924, Part A.

ROOTS, C.F., AND MURPHY, D.C., 1992. Geology of Mayo Map Area (105M). Geological Survey of Canada Open File 2483.

Location Map

Last Updated: Jan 19, 2021

Work History

Year Work Type Comment
2019 Geochemistry: Rock
2019 Geochemistry: Soil
2019 Geology: Bedrock Mapping
2019 Other: Prospecting
2017 Airphotography: Orthophoto
2017 Drilling: Diamond
2017 Geochemistry: Rock
2017 Geochemistry: Soil
2017 Geology: Bedrock Mapping
2010 Drilling: Diamond 7 holes 1,104.57 m
2010 Geochemistry: Drill Core
2010 Trenching: Mechanical
2007 Development, Surface: Access Road
2007 Geochemistry: Rock
2007 Ground Geophysics: EM
2007 Other: Line Cutting
2007 Other: Property Evaluation
2007 Other: Prospecting
2007 Trenching: Mechanical
2006 Airborne Geophysics: Electromagnetic
2006 Airborne Geophysics: Magnetic
2006 Airphotography: Interpretation
2006 Airphotography: Orthophoto
2006 Development, Surface: Access Road
2006 Development, Surface: Environmental Clean-up
2006 Development, Surface: Reclamation
2006 Geochemistry: Rock
2006 Geology: Bedrock Mapping
2006 Other: Prospecting
2006 Pre-existing Data: Digitizing Data
2006 Remote Sensing: Photogrammetry
2006 Trenching: Handblast
1986 Trenching: Mechanical
1986 Geochemistry: Rock
1986 Geochemistry: Soil
1986 Geology: Detailed Bedrock Mapping
1986 Lab Work/Physical Studies: Bulk Sample
1986 Other: Prospecting
1986 Pre-existing Data: Research/Summarize
1973 Other
1963 Trenching: Hand
1919 Other
1919 Trenching: Hand
1919 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: Earn
Formation:
Member:
Terrane: Laurentia
Period Max: Devonian
Age Max: 385 MA
Period Min: Carboniferous
Age Min: 355 MA
Rock Major: flows/tuffs/plugs/chert
Rock Minor: basalt
Reference: Roots (1997) - YGS GM 1997-1
Geological Unit (1M): DME
Geological Unit (250K): DME3

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
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
095661 2008 2008 Geological, Geochemical and XRF Assessment Report on the Keno Hill Property Biogeochemistry - Geochemistry, Rock - Geochemistry, Soil - Geochemistry
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
062258 1965 [Summary of the Peso Silver Mines Ltd. Properties] Data Compilation - Pre-existing Data, Research/Summarize - Pre-existing Data, Resource Estimate - Studies

Related References

Number Title Page(s) Document Type
ARMC014862 Plan of survey of Premier, Dorothy, Tagish, Skookum, Cheechako, Papoose, Bra, Birch, Spruce Tillicum, Something Fr. & Wimpy Fr. mineral claims - Situated on the north-east slope of Galena Hill in the Mayo mining district Geoscience Map (General)
ARMC014860 Report on Rio Plata Silver Mines Limited - 1964 operations and development Report
ARMC014847 Report: Gold Hill No. 2, Silver Queen, Silver Basin No. 3 - Keno Hill, Mayo division of Dawson mining district, Yukon Territory Report
ARMC014858 Prospectus - Rio Plata Silver Mines Ltd. (N.P.L.) - Including reports on the Formo and Haggert Creek claim groups Report
ARMC014859 Notes on the holdings of Rio Plata Silver Mines in Silver Basin, Keno Hill, Yukon Territory Miscellaneous Company Documents
ARMC014846 Letter Re: property submission - Minexco Inc. - Silver claims, Dawson M.D., Keno Hill area Miscellaneous Company Documents
ARMC014864 Claim map - Rio Plata Silver Mines Ltd. N.P.L. Geoscience Map (General)
86-023 Report on the Geology, Geochemistry and Trenching of the Keno Hill Area Sub-Leases and Working Permits YMEP Report
Citations

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