The Upper Black River is a copper and molybdenum 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.
Upper Black River MRDS details
Site Name
Primary: Upper Black River
Secondary: Unnamed (upper Black River)
Commodity
Primary: Copper
Primary: Molybdenum
Secondary: Gold
Secondary: Tungsten
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: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Porphyry Cu-Au
Model Name: Porphyry Cu-Mo
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Molybdenite
Comments
Comment (Workings): Workings / Exploration = Analyses of float samples contain up to 0.15 ppm Au, 0.69% Cu, 446 ppm Mo, 180 ppm W; placer samples have anomalous concentrations of Au, Pb, W, and Zn (Kurtak and others, 1992).
Comment (Deposit): Model Name = Porphyry Cu-Au or porphyry Cu-Mo? (Cox and Singer, 1986; model 20c or 21a?)
Comment (Geology): Geologic Description = Mineralized float samples collected from a large drainage area underlain by Jurassic granodiorite cut by NE-trending shear zones.
Comment (Reference): Primary Reference = Kurtak and others, 1992
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Kurtak, J.M., Southworth, D.D., Balen, M.D., and Clautice, K.H., 1992, Mineral investigations in the Valdez Creek mining district, south-central Alaska: U.S. Bureau of Mines Open-File Report 1-92, 659 p., 2 plates, scale 1:250,000.
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