The Porcupine River--ancient channel placer is a tin 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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Porcupine River--ancient channel placer MRDS details
Site Name
Primary: Porcupine River--ancient channel placer
Commodity
Primary: Tin
Secondary: Lead
Secondary: Zinc
Secondary: Tungsten
Secondary: Boron-Borates
Secondary: REE
Location
State: Alaska
District: Sheenjek
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
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Ore: Scheelite
Ore: Tourmaline
Comments
Comment (Reference): Primary Reference = Barker (1981)
Comment (Workings): Workings / Exploration = Panned samples contained 10,000 ppm Zn, 5000 ppm Sn, and minor tungsten (Barker, 1981, p. 117-120).
Comment (Deposit): Model Name = Placer, stream
Comment (Deposit): Other Comments = See MAS/MILS Sequence # 0020330010 (USBM, 1995)
Comment (Geology): Geologic Description = Placer deposit in abandoned channel now perched 100-300 ft (30.5-91.5 m) above river level; probably derived from granitic igneous rocks 10-35 mi (16-56 km) upstream in Yukon Territory (Barker and Clautice, 1978, p.19, no.9).
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Barker, J.C., and Clautice, K.H., 1978, Mineral reconnaissance of the Porcupine River region: a summary report: U.S. Bureau of Mines Open-File Report 87-78, 20 p.
Reference (Deposit): Barker, J.C., 1981, Mineral investigations in the Porcupine River drainage, Alaska: U.S. Bureau of Mines Open-File Report 27-81, 189 p., 2 sheets.
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