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
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Unnamed MRDS details
Site Name
Primary: Unnamed
Secondary: Unnamed (east of lower Nabesna Glacier)
Commodity
Primary: Copper
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: 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: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic
Name: Basalt
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic
Name: Basalt
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Azurite
Ore: Malachite
Comments
Comment (Reference): Primary Reference = Richter, 1973, USGS I-789
Comment (Workings): Workings / Exploration = Chip sample across 50 ft of Cu-stained basalt ran: >20,000 ppm Cu and 1.5 ppm Ag (USGS OF 398, sample 231). Type of workings: surface
Comment (Deposit): Model Name = Lode: volcanogenic, supergene
Comment (Geology): Geologic Description = Zone of malachite- and azurite-stained amygdaloidal basalt 200 ft long and 30 ft wide. Basalt is part of the Triassic Nikolai Greenstone.
Comment (Exploration): Status = Inactive
References
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.
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., and Matson, N.A., 1970, Geochemical data from the Nabesna A-4 quadrangle, Alaska: U.S. Geological Survey Open-File Report 70-276, 14 p., 1 sheet, scale 1:63,360.
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
