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Occurrence Details


Occurrence Number
105D 135
Occurrence Name
West Arm
Occurrence Type
Hard-rock
Status
Anomaly


General Information

Secondary Commodities: uranium, molybdenum
Deposit Type(s): Porphyry Mo (Low F-Type)
Location(s): 60.0650 N, -135.124170 W
NTS Mapsheet(s): 105D03
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as West cl (YA22555) in Apr/78 by Ross Bennett JV (E & B EL, Welcome North ML, Kennco EL & Malabar Silver ML), which performed mapping, geochem and radiometric surveys in 1978 and soil sampling in 1979.

Capsule Geology

The claims were staked on uranium silt anomalies in streams draining granodiorite and leucocratic quartz monzonite of the Coast Range Batholith. Ground surveys outlined a uranium soil anomaly with values up to 670 ppm U. Material from a radioactive spring assayed as high as 4129 ppm U.
Minor molybdenum was found in fractures cutting the quartz monzonite.

References

E AND B EXPLORATIONS LTD, 1978. Assessment Report *#090466 by R. Culbert.

E AND B EXPLORATIONS LTD, 1979. Assessment Report *#090607 by R. Culbert.

MINERAL INDUSTRY 1978, p. 34.

YUKON GEOLOGY AND EXPLORATION 1979-80, p. 166.

Location Map

Last Updated: Aug 14, 2018

Work History

Year Work Type Comment
1979 Geochemistry: Soil Used auger to collect samples.
1978 Geochemistry: Silt Also soil (collected by power auger) and rock samples.
1978 Geology: Bedrock Mapping
1978 Ground Geophysics: Gamma-ray Spectrometry

Regional Geology - Terrane

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


Regional Geology - Bedrock

Supergroup:
Group/Suite: Long Lake
Formation:
Member:
Terrane:
Period Max: Jurassic
Age Max: 192 MA
Period Min: Jurassic
Age Min: 178 MA
Rock Major: monzodiorite/quartz monzodiorite/hornblendite/granite/granodiorite
Rock Minor:
Reference: Hart & Radloff (1990) - YGS OF 1990-4
Geological Unit (1M): EJL
Geological Unit (250K): EJgL

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
090607 1979 Geochemical Report on the West (West Group) 1-12 Mineral Claims Soil - Geochemistry
090466 1978 Geological and Geochemical Report on the West 1-12 Mineral Claims Silt - Geochemistry, Detailed Bedrock Mapping - Geology, Prospecting - Other

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