The Unnamed is a 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
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Unnamed MRDS details
Site Name
Primary: Unnamed
Commodity
Primary: Copper
Location
State: Alaska
District: McGrath
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
Model Name: Sediment-hosted Cu
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Phyllite
Role: Host
Age Type: Host Rock
Age Young: Early Cambrian
Analytical Data
Not available
Materials
Ore: Chalcocite
Comments
Comment (Commodity): Ore Material = unidentified copper carbonate minerals
Comment (Exploration): Status = Inactive
Comment (Reference): Primary Reference = Cobb and Reed, 1980
Comment (Workings): Workings / Exploration = Reconnaissance mapping, stream silt and rock sampling are all that have been done here. Copper carbonate minerals are sporadically present in the surrounding area (Reed and others, 1978).
Comment (Geology): Geologic Description = Lower Paleozoic phyllite of Reed and Nelson's (1980) Pzsv unit contains a stratiform lens of chalcocite five centimeters thick. Copper carbonate minerals are sporadically present in the surrounding area (Reed and others, 1978).
Comment (Deposit): Model Name = Possibly sediment-hosted copper (Cox and Singer, 1986; model 30b).
Comment (Commodity): Ore Material = unidentified copper carbonate minerals
Comment (Geology): Age = Lower Paleozoic; Assumed to be age of enclosing phyllite, assigned to the lower Paleozoic by Reed and Nelson (1980).
References
Reference (Deposit): Cobb, E.H., and Reed, B.L., 1980, Summaries of data and lists of reference to metallic and selected nonmetallic mineral deposits in the Talkeetna quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-884, 106 p.
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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