The Upper Willow Creek is a gold mine located in Alaska.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
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Upper Willow Creek MRDS details
Site Name
Primary: Upper Willow Creek
Commodity
Primary: Gold
Location
State: Alaska
District: Willow Creek
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Gold
Comments
Comment (Reference): Primary Reference = Jasper, 1967
Comment (Workings): Workings / Exploration = Unknown
Comment (Geology): Geologic Description = Jasper (1967) reports traces of chalcopyrite and gold in float concentrates. The bedrock in the lower part of the valley consists of Jurassic? quartz-muscovite-albite-chlorite (+/- garnet-biotite) pelitic schist; in the upper valley the bedrock is the Willow Creek Pluton, a Late Cretaceous zoned pluton.
Comment (Exploration): Status = Inactive
Comment (Geology): Age = Jurassic or younger.
References
Reference (Deposit): Jasper, M.W., 1967, Geochemical investigations along the Valdez to Chitina Highway, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Geochemical Report 15, 33 p.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Anchorage quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-409, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1979, Summary of references to mineral occurrences (other than mineral fuels and construction materials in the Anchorage quadrangle, Alaska: U.S. Geological Survey Open-File Report 79-1095, 184 p.
Reference (Deposit): Winkler, G.R., 1992, Geologic map and summary geochronology of the Anchorage (1 degree x 3 degree) quadrangle, southern Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-2283, 1:250,000.
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