The Fall Creek is a tungsten 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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Fall Creek MRDS details
Site Name
Primary: Fall Creek
Commodity
Primary: Tungsten
Location
State: Alaska
District: Anchorage
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: Scheelite
Comments
Comment (Reference): Primary Reference = Richter, 1967
Comment (Geology): Geologic Description = Richter (1967) reported scheelite in Fall Creek stream-sediment concentrate samples. Fall Creek drains Valdez Group metasedimentary rocks of Late Cretaceous age. Winkler (1992) describes the rocks as thick sequences of drab, rhythmically alternating, multiply deformed turbidite. Lithologies include: metasandstone, metasiltstone, argillite, slate, and phillite, and rare beds of pebbly argillite and metasandstone.
Comment (Workings): Workings / Exploration = Richter (1967) reported that scheelite is found in stream-sediment concentrate.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Cobb, E.H., 1973, Placer deposits of Alaska: U.S. Geological Survey Bulletin 1374, 213 p.
Reference (Deposit): Cobb, E.H., 1975, Tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resource Map MR-66, 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): 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): Richter, D.H., 1967, Geological and geochemical investigations in the Metal Creek area, Chugach Mountains: Alaska Division of Geological and Geophysical Surveys Geologic Report 25, 17 p., 1 sheet, scale 1:63,360.
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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