The Unnamed (near Mt. Foraker) is a molybdenum, silver, gold, and copper 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
Elevation:
Commodity: Molybdenum, Silver, Gold, Copper
Lat, Long: 62.93694, -151.28806
Map: View on Google Maps
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Unnamed (near Mt. Foraker) MRDS details
Site Name
Primary: Unnamed (near Mt. Foraker)
Commodity
Primary: Molybdenum
Primary: Silver
Primary: Gold
Primary: Copper
Secondary: Arsenic
Location
State: Alaska
District: Yentna
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
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Arsenopyrite
Ore: Chalcopyrite
Ore: Gold
Ore: Pyrite
Comments
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Reconnaissance mapping, stream silt and rock sampling (Reed and others, 1978; Reed and Nelson, 1980) are all that have been described here. Nearby float contains massive arsenopyrite with up to 0.45 oz/ton gold (Reed and others, 1978).
Comment (Deposit): Other Comments = This site is located within Denali National Park and Preserve.
Comment (Geology): Geologic Description = The area is underlain by Paleozoic argillite (Pzus) and Middle to Upper Devonian limestone (Dl) that are cut by the middle Tertiary (38 m.y.) granodiorite of the Mt. Foraker pluton (Tf) (Reed and Nelson, 1980). Disseminated pyrite, chalcopyrite and other sulfides occur in sheared sedimentary rocks. Nearby float contains massive arsenopyrite with up to 0.45 oz/ton gold (Reed and others, 1978).
Comment (Reference): Primary Reference = Reed and others, 1978
Comment (Geology): Age = Middle Tertiary; mineralization is interpreted to be related to the Mt. Foraker pluton which is described as a 38 m.y. old pluton Reed and Nelson (1980).
References
Reference (Deposit): Reed, B.L., and Nelson, S.W., 1980, Geologic map of the Talkeetna quadrangle: U.S. Geological Survey Miscellaneous Investigations Map I-1174, scale 1:250,000.
Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Reed, B.L., Nelson, S.W., Curtin, G.C., and Singer, D.A., 1978, Mineral resources map of the Talkeetna Quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-870-D, 1 sheet, scale 1:250,000.
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