General Information
Secondary Commodities: copper, uranium, tungsten
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 61.002780 N, -133.5725 W
NTS Mapsheet(s): 105F04
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Murphy cl (YA4190) in April, 1976 by Ukon JV (Chevron and Kerr Addison), which explored with mapping, soil sampling and radiometric surveys in 1976 and 1977. Restaked as MMM cl (YA51065) in Aug/80 by Amoco Can Pet CL, which performed mapping and geochem sampling later in the year.
Capsule Geology
The claims cover a gossaned area underlain by a Cretaceous granitic batholith. The gossan is caused by disseminated pyrite in an area of weak fracturing and quartz veining mineralized with minor molybdenite, malachite and a trace of scheelite. Ground radiometric surveys located two adjacent zones of anomalous radioactivity associated with biotite-rich patches. Minor uranium occurs as secondary yellow and green oxides coating leached cavities in the granite. Assays of strongly radioactive specimens ranged from 0.05 to 0.23% U3O8. Coincident molybdenum, copper and tungsten anomalies occur in an area about 400 m by 1200 m.
Amoco located two molybdenum soil anomalies, one 1200 by 400 m and open to the north, and another 300 by 200 m and open to the west. Both anomalies are associated with pyritic intrusive rocks.
References
AMOCO CANADA PETROLEUM CO. LTD, Feb/81. Assessment Report #090806 by P. Brown.
MINERAL INDUSTRY REPORT 1976, p. 148-149; 1978, p. 33.
UKON JOINT VENTURE, 1976. Assessment Report *#090179 by A.R. Archer and E.P. Onasick.
UKON JOINT VENTURE, Apr/78. Assessment Report #090342 by A.R. Archer.
YUKON EXPLORATION & GEOLOGY 1981, p. 129.
Staked as Murphy cl (YA4190) in April, 1976 by Ukon JV (Chevron and Kerr Addison), which explored with mapping, soil sampling and radiometric surveys in 1976 and 1977. Restaked as MMM cl (YA51065) in Aug/80 by Amoco Can Pet CL, which performed mapping and geochem sampling later in the year.
Capsule Geology
The claims cover a gossaned area underlain by a Cretaceous granitic batholith. The gossan is caused by disseminated pyrite in an area of weak fracturing and quartz veining mineralized with minor molybdenite, malachite and a trace of scheelite. Ground radiometric surveys located two adjacent zones of anomalous radioactivity associated with biotite-rich patches. Minor uranium occurs as secondary yellow and green oxides coating leached cavities in the granite. Assays of strongly radioactive specimens ranged from 0.05 to 0.23% U3O8. Coincident molybdenum, copper and tungsten anomalies occur in an area about 400 m by 1200 m.
Amoco located two molybdenum soil anomalies, one 1200 by 400 m and open to the north, and another 300 by 200 m and open to the west. Both anomalies are associated with pyritic intrusive rocks.
References
AMOCO CANADA PETROLEUM CO. LTD, Feb/81. Assessment Report #090806 by P. Brown.
MINERAL INDUSTRY REPORT 1976, p. 148-149; 1978, p. 33.
UKON JOINT VENTURE, 1976. Assessment Report *#090179 by A.R. Archer and E.P. Onasick.
UKON JOINT VENTURE, Apr/78. Assessment Report #090342 by A.R. Archer.
YUKON EXPLORATION & GEOLOGY 1981, p. 129.
Location Map
Last Updated: Jul 19, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1980 | Geochemistry: Silt | Reconnaissance scale. |
| 1980 | Geology: Bedrock Mapping | |
| 1980 | Other: Prospecting | |
| 1978 | Geochemistry: Soil | |
| 1978 | Ground Geophysics: Radiometric Survey | |
| 1978 | Other: Prospecting | |
| 1976 | Airborne Geophysics: Gamma-Ray Spectrometry | |
| 1976 | Geochemistry: Soil | |
| 1976 | Geology: Bedrock Mapping | |
| 1976 | Ground Geophysics: Scintillometer |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Finlayson
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: quartzite/qt-ms-schist
Rock Minor: conglo/grit
Reference: Gordey & Stevens (1994) - GSC OF 2886
Geological Unit (1M): DMF
Geological Unit (250K): DMF3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 094937 | 2007 | Assessment Report, Helicopter Magnetic and Radiometric Survey for It's Your Nickel Exploration Ltd. on the Turn River Uranium Project | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 094733 | 2006 | Prospecting, Drilling, Airborne Radiometrics, VLF-EM and Magnetic Surveys at the Mt Murphy Property | Magnetic - Airborne Geophysics, Radiometric - Airborne Geophysics, Diamond - Drilling, Rock - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics | 4 | 384.26 |
| 090806 | 1980 | MMM Claim Group: Soil Geochemistrty | Soil - Geochemistry | ||
| 090179 | 1978 | Report on Geochemistry, Geology and Radiometric Survey, Murphy 1-24 Claims | Radiometric - Airborne Geophysics, Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Radiometric Survey - Ground Geophysics | ||
| 060003 | 1969 | Geochemical Survey, Assessment Work Report on theNW Claim group | Silt - Geochemistry, Soil - Geochemistry |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC006886 | Fig. U-MM2 - Geology and geochemistry map - Mount Murphy - Ukon joint venture | Geophysical Map |
| Citations |
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