The Unnamed (south of the Hammond River) 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 (south of the Hammond River) MRDS details
Site Name
Primary: Unnamed (south of the Hammond River)
Commodity
Primary: Copper
Location
State: Alaska
District: Koyukuk
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: Limestone
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Silurian
Name: Limestone
Role: Associated
Age Type: Associated Rock
Age Young: Late Silurian
Analytical Data
Not available
Materials
Not available
Comments
Comment (Geology): Geologic Description = An occurrence of Cu sulfides and/or malachite-azurite stains is in an area mapped as Middle to Upper Devonian(?) conglomerate in a more extensive unit of black slate, phyllite, and chloritic siltstone (Dillon and Reifenstuhl, 1995). These rocks are all part of the Beaucoup Formation. No other information is available.
Comment (Reference): Primary Reference = Brosgi and Reiser, 1964
Comment (Commodity): Ore Material = Unspecified copper sulfides and/or malachite-azurite
Comment (Deposit): Other Comments = A small outcrop, mapped by Dillon and Reifenstuhl (1995) as andesite tuff-dacite flow, is located adjacent to the conglomerate unit about 1/2 mile southeast of the Cu occurrence. This occurrence is located within Gates of the Arctic National Park.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Brosgi, W.P., and Reiser, H.N., 1964, Geologic map and section of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map 1-375, 1 sheet, scale 1:250,000.
Reference (Deposit): Cobb, E.H., and Cruz, E.L., 1983, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in the Chandalar quadrangle, Alaska: U.S. Geological Survey Open-File Report 83-278, 91 p.
Reference (Deposit): DeYoung, J.H., Jr., 1978, Mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-878-B, 2 sheets, scale 1:250,000.
Reference (Deposit): Cobb, E.H., 1976, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska: U.S. Geological Survey Open-File Report 76-340, 205 p.
Reference (Deposit): Grybeck, D.J., 1977, Known mineral deposits of the Brooks Range, Alaska: US Geological Survey Open-File Report 77-166C, 41 p., 1 sheet, scale 1:1,000,000.
Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Chandalar quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-457, 1 sheet, scale 1:250,000.
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