The Unnamed (on Lost River) 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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Unnamed (on Lost River) MRDS details
Site Name
Primary: Unnamed (on Lost River)
Commodity
Primary: Tin
Location
State: Alaska
District: Port Clarence
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: Alluvial placer Sn
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cassiterite
Comments
Comment (Geology): Age = Quaternary
Comment (Reference): Primary Reference = Mulligan, 1959 (USBM RI 5520)
Comment (Reserve-Resource): Reserves = Not defined
Comment (Workings): Workings / Exploration = Three USBM churn-drill holes are the only reported work on this part of Lost River.
Comment (Geology): Geologic Description = Bedrock in this drainage and its tributaries are various Ordovician limestone facies locally intruded by felsic and mafic dikes and granite stocks (Sainsbury, 1969). The USBM completed three churn-drill holes in a line across Lost River at his locality. These holes encountered 5 to 9 feet of gravel over limestone bedrock. Gravel from lower parts of these holes contained 0.04 and 0.05 pounds of tin per cubic yard (Mulligan, 1959, p. 13). The heavy minerals in these gravels were not identified.
Comment (Deposit): Model Name = Alluvial tin placer (Cox and Singer, 1986; model 39e)
Comment (Exploration): Status = Inactive
References
Reference (Deposit): Sainsbury, C.L., 1969, Geology and ore deposits of the central York Mountains, western Seward Peninsula, Alaska: U.S. Geological Survey Bulletin 1287, 101 p.
Reference (Deposit): Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.
Reference (Deposit): Mulligan, J.J., 1959, Sampling stream gravels for tin, near York, Seward Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 5520, 25 p.
Reference (Deposit): Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.
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