The Unnamed (at Peak 5532) 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.
Unnamed (at Peak 5532) MRDS details
Site Name
Primary: Unnamed (at Peak 5532)
Commodity
Primary: Copper
Secondary: Nickel
Secondary: Chromium
Location
State: Alaska
District: Valdez Creek
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
Model Name: Mafic Cu-Ni association
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Role: Host
Age Type: Host Rock
Age Young: Triassic
Analytical Data
Not available
Materials
Ore: Pyrrhotite
Ore: Pentlandite
Ore: Chromite
Ore: Chalcopyrite
Comments
Comment (Exploration): Status = Probably inactive
Comment (Reference): Primary Reference = Balen and others, 1991
Comment (Workings): Workings / Exploration = There has only been surface sampling to date.
Comment (Deposit): Model Name = Cu-Ni-PGE (Cox and Singer, 1986; model 5)
Comment (Deposit): Other Comments = This deposit was discovered in the 1980s, during a regional geologic reconnaissance by the Bureau of Land Management (Balen, 1990: OFR 34-90).
Comment (Geology): Geologic Description = The country rocks at this prospect are Middle or Upper Triassic Nikolai Greenstone, and probably cogenetic, ultramafic dikes that cut the greenstone. The deposit consists of disseminations and pods of chalcopyrite, chromite, pentlandite, and pyrrhotite in within the ultramafic intrusive rocks. Samples contain as much as 0.41% chromium, 0.15% copper, 0.11% nickel, 28 ppb palladium, and 140 ppb platinum (Balen and others, 1991).
Comment (Geology): Age = the ore minerals probably are magmatic segregations in the Triassic ultramafic hostrocks.
References
Reference (Deposit): Balen, M.D., and others, 1991, Executive summary of the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Special Publication, 43 p.
Reference (Deposit): Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.
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