The Nebraska 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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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.
Nebraska MRDS details
Site Name
Primary: Nebraska
Commodity
Primary: Copper
Location
State: Alaska
District: Nizina
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: Greenstone
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic
Name: Greenstone
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Triassic
Analytical Data
Not available
Materials
Ore: Bornite
Ore: Chalcanthite
Ore: Chalcocite
Ore: Chalcopyrite
Ore: Malachite
Comments
Comment (Reference): Primary Reference = Moffit and Maddren, 1909
Comment (Workings): Workings / Exploration = Explored by short adits and surface excavations. Evidence of recent workings in prospects north of Hidden Creek (MacKevett, 1976). Type of workings: surface and underground.
Comment (Deposit): Model Name = Lode; vein
Comment (Geology): Geologic Description = Cu sulfides and secondary Cu minerals in Triassic Nikolai Greenstone mainly localiized along faults at or near contact with Triassic Chitistone Limestone.
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Moffit, F.H., and Maddren, A.G., 1909, Mineral resources of the Kotsina-Chitina region, Alaska: U.S. Geological Survey Bulletin 374, 103 p.
Reference (Deposit): Miller, D.J., 1946, Copper deposits of the Nizina district, Alaska: U.S. Geological Survey Bulletin 947F, p. 93-120.
Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.
Reference (Deposit): MacKevett, E.M., Jr., 1972, Geologic map of the McCarthy C-6 quadrangle, Alaska: U.S. Geological Survey Geologic Quadrangle Map GQ-979, scale 1:63,360.
Reference (Deposit): MacKevett, E.M., Jr., 1976, Mineral deposits and occurrences in the McCarthy quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-773-B, scale 1:250,000.
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