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Occurrence Details


Occurrence Number
117A 019
Occurrence Name
Bonnet
Occurrence Type
Hard-rock
Status
Showing


General Information

Secondary Commodities: uranium
Deposit Type(s): Uranium
Location(s): 68.299720 N, -137.8925 W
NTS Mapsheet(s): 117A07
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked in Aug/76 as 270 Bon cl (YA9186) by Aquitaine, which explored with geochem and radiometric surveys in 1976 and 1977 before trenching, mapping, reducing its holdings to an 8 claim block at the northwest end and a 38 claim block at the southeast end. Aquitaine restaked as the 144 Tie cl (YA31226) in Jul/78, just before the area was withdrawn from staking in Jul/78 pending creation of a National Wilderness Park, settlement of native land claims, and development of a management plan for the Porcupine Caribou Herd.
The claims were transferred to Kidd Creek ML in 1981 and to Falconbridge L in 1986.

Capsule Geology

The northwest group was staked over shale of the Ordovician to Lower Devonian Road River Group, which is unconformably overlain by chert pebble conglomerate of the Lower Carboniferous Kekiktuk Formation. The southeastern claim group is underlain by shale and quartzite of the Lower Mississippian Kayak Formation.
Assays of up to 405 ppm U were obtained from specimens of deeply weathered basal Carboniferous conglomerate. No radioactive mineral has been identified. The uranium probably occurs with phosphate minerals.
 

Location Map

Last Updated: Mar 20, 2019

Work History

Year Work Type Comment
1978 Geochemistry: Soil
1978 Geology: Bedrock Mapping
1978 Ground Geophysics: IP Also radon testing.
1976 Airborne Geophysics: Gamma-Ray Spectrometry
1976 Geochemistry: Silt
1976 Geology: Bedrock Mapping
1976 Trenching: Handblast
1976 Ground Geophysics Radon testing.
1976 Ground Geophysics: Scintillometer

Regional Geology - Terrane

Group: Northern Alaska
Affinity: N Laurentia
Name: Arctic Alaska (North Slope)
Realm: Arctic


Regional Geology - Bedrock

Supergroup:
Group/Suite: Neruokpuk
Formation:
Member:
Terrane: Arctic Alaska
Period Max: Ediacaran
Age Max: 580 MA
Period Min: Cambrian
Age Min: 521 MA
Rock Major: shale/siltstone/sandstone
Rock Minor: quartzite/limestone
Reference: Colpron (2014) - revision
Geological Unit (1M): uPCN
Geological Unit (250K): uPCN1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
090318 1977 Trenching, Geophysical, Geochemical, and Geological Surveys Performed Between May 1 and August 20, 1977 Gamma-Ray Spectrometry - Airborne Geophysics, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Scintillometer - Ground Geophysics, Hand - Trenching

Related References

Number Title Page(s) Document Type
Citations
Gordey, S.P., 1981. Assessment of mineral and fuel resource potential of the proposed northern Yukon national park and adjacent areas (Phase 1). Geological Survey of Canada, Open File 760.
Jones, L.D. and Bell, R.T., 1979. Geology of some uranium occurrences in western Canada. Geological Survey of Canada, Paper 79-1A, p. 397-399.

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