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Occurrence Details


Occurrence Number
116C 135
Occurrence Name
Cholach
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: silver, lead
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 64.071110 N, -140.711670 W
NTS Mapsheet(s): 116C02
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Jem cl 1-8 (YA50087) in Jun/80 by Springfield Consulting Ltd which carried out geochemical sampling and trenching later that year before staking the Be cl 1-31 (YA52677) in Sep/80. Springfield carried out additional geochemical sampling in 1981. The property was acquired in 1982 by Connaught Mines Ltd, which added more Jem claims, and was transferred to Horton Hydrocarbons Inc in 1983.
Restaked as Big Gold cl 15-38 (YB17942) in Sep/88 by L. Turner. Dredge Master Gold Mining (L. Turner) then staked Big Gold cl 39-52 (YB23456) contiguously to the north in May/89 and Big Gold cl 71-84 (YB23505) and Big Gold cl 153-170 (YB23519) to the east and west, respectively, in Jun/89. Numerous other Big Gold claims were staked and restaked in the area by Turner throughout the remainder of that year and bulldozer trenching was apparently carried out on the claims in 1988, 1989 and 1993.

Capsule Geology

Galena and pyrite occur in veinlets and veins within a 730 m by 425 m, northwest-trending Pb-Zn soil anomaly that is underlain by porphyritic andesite, basalt, shale and conglomerate of Tertiary age. Anomalous soil values range up to 3 400 ppm Pb, 6 ppm Ag and 32 ppm Cu. Samples from two, 3 cm wide galena veinlets exposed by trenching in 1980 returned 75.0% Pb with 2 303.9 g/t Ag and 14.1% Pb with 1 155.4 g/t Ag.

Location Map

Last Updated: Feb 21, 2022

Work History

Year Work Type Comment
2012 Geochemistry: Rock
2012 Geochemistry: Silt
2012 Geochemistry: Soil
2012 Geology: Bedrock Mapping
2012 Other: Prospecting
2012 Pre-existing Data: Data Compilation
2010 Airborne Geophysics: Gamma-Ray Spectrometry
2010 Airborne Geophysics: Magnetic
2010 Drilling: Auger
2010 Drilling: Diamond
2010 Drilling: Rotary
2010 Geochemistry: Drill Core
2010 Geochemistry: Rock
2010 Geochemistry: Soil
2010 Geology: Bedrock Mapping
2010 Trenching: Mechanical
1993 Trenching: Mechanical
1989 Trenching: Mechanical
1988 Trenching: Mechanical
1981 Geochemistry: Soil
1980 Geochemistry: Soil
1980 Other
1980 Trenching
1980 Geochemistry: Rock
1980 Other: Cursory Property Visit
1980 Other: Prospecting
1980 Trenching: Hand
1969 Drilling: Diamond
1969 Geochemistry: Drill Core
1969 Geochemistry: Rock
1969 Geochemistry: Silt
1969 Geochemistry: Soil
1969 Geology: Detailed Bedrock Mapping
1969 Other: Cursory Property Visit
1969 Pre-existing Data: Data Compilation
1969 Trenching: Mechanical

Regional Geology - Terrane

Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian


Regional Geology - Bedrock

Supergroup:
Group/Suite: Prospector Mountain
Formation:
Member:
Terrane:
Period Max: Cretaceous
Age Max: 72 MA
Period Min: Cretaceous
Age Min: 68 MA
Rock Major: granodiorite/diorite/quartz diorite
Rock Minor:
Reference: Mortensen - unpublished compilation
Geological Unit (1M): LKP
Geological Unit (250K): LKgP

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
096412 2012 Geochemical and Geological Assessment Report on the Fiftymile Project-Sixty Mile Area, Yukon Territory Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Data Compilation - Pre-existing Data
096208 2010 SIXTY MILE Property-2010 Geological, Geochemical, Geophysical and Auger, RAB and Diamond Drilling Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics, Auger - Drilling, Diamond - Drilling, Rotary - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Mechanical - Trenching 443 7289.37
090839 1980 1980 Exploration Program on the BE and JEM Claims Rock - Geochemistry, Soil - Geochemistry, Cursory Property Visit - Other, Prospecting - Other, Hand - Trenching
061130 1969 Report on the 1969 Exploration Program in the Sixtymile River Area, Yukon Territory Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Mechanical - Trenching 8 431.59
060840 1969 Summary Report for the Connaught Mines Ltd.-Sixty Mile Area, Yukon Cursory Property Visit - Other, Data Compilation - Pre-existing Data

Related References

Number Title Page(s) Document Type
ARMC013223 Correspondence and notes between M. Chefkoi and A.E. Aho Re: Sixty Mile 116-C and Jem group of claims Miscellaneous Company Documents
Citations
Mortensen, J.K., 1988. Geology, southwestern Dawson map area, Yukon. Geological Survey of Canada, Open File 1927.

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