The Nabesna 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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Nabesna River MRDS details
Site Name
Primary: Nabesna River
Secondary: Unnamed (terminus of Nabesna Glacier)
Commodity
Primary: Copper
Secondary: Zinc
Secondary: Silver
Location
State: Alaska
District: Chisana
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
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: Dacite
Role: Host
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Reference): Primary Reference = Richter, 1973, USGS I-789
Comment (Deposit): Other Comments = See also: Nabesna Glacier prospect (NB048)
Comment (Geology): Geologic Description = Stockwork of quartz-pyrite veins and veinlets, containing minor chalcopyrite, cuts altered Tertiary hornblende dacite dike and Triassic Nikolai Greenstone country rock.
Comment (Exploration): Status = Inactive
Comment (Workings): Workings / Exploration = Some drilling in this deposit indicates grades as high as 0.3% Cu with minor Ag and Zn values (USGS MF-655K); Type of workings: surface
Comment (Deposit): Model Name = Lode: stockwork
References
Reference (Deposit): Richter, D.H., 1973, Reconnaissance geological map of the Nabesna A-1 quadrangle, Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map 1-789, scale 1:63,360.
Reference (Deposit): Richter, D.H., Singer, D.A., and Cox, D.P., 1975, Mineral resources map of the Nabesna quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-655-K, scale 1:250,000.
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