Unnamed

The Unnamed is a tungsten 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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Site Name

Primary: Unnamed

Commodity

Primary: Tungsten

Location

State: Alaska
District: Bering Sea

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: W veins
Model Name: W skarn

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): Model Name = Tungsten-bearing skarn or veins in granitic rocks. Deposit models 14a (?) or 15a (?); W skarn deposits or W veins

Comment (Deposit): Model Number = 14a (?); 15a (?)

Comment (Exploration): Status = Inactive

Comment (Geology): Age = If the one anomalous tungsten value is correct and reflects the presence of mineralization, this mineralization is probably mid-Cretaceous in age, the age of other biotite quartz monzonite plutons on St. Lawrence Island (Patton and Csejtey, 1980).

Comment (Reference): Primary Reference = Patton and Csejtey, 1972

Comment (Workings): Workings / Exploration = One stream sediment sample from this drainage contained 150 ppm tungsten, the highest tungsten value reported in stream sediments from St. Lawrence Island (Patton and Csejtey, 1972). However, other elements were not significantly elevated in stream sediments from this drainage.

Comment (Geology): Geologic Description = One stream sediment sample from this drainage contained 150 ppm tungsten, the highest tungsten value reported in stream sediments from St. Lawrence Island (Patton and Csejtey, 1972). However, other elements were not significantly elevated in stream sediments from this drainage. Bedrock in the drainage area is biotite quartz monzonite that at least locally intrudes Mississippian limestone (Csejtey and Patton, 1974, p. 43; Patton and Csejtey, 1980).

References

Reference (Deposit): Cobb, E.H., 1980, Summaries of data and lists of references to metallic and selected nonmetallic mineral deposits in fifteen quadrangles in southwestern and west-central Alaska: U.S. Geological Survey Open-File Report 80-909, 103 p.

Reference (Deposit): Csejtey, Bela, Jr., and Patton, W.W., Jr., 1974, Petrology of the nepheline syenite of St. Lawrence Island, Alaska: U.S. Geological Survey, Journal of Research, v. 2, no. 1, p. 41-47.

Reference (Deposit): Patton, W.W., Jr., and Csejtey, Bela, Jr., 1972, Analyses of stream sediment and rock samples from St. Lawrence Island, Alaska, 1966-1971: U.S. Geological Survey Open-File Report 72-293, 78 p.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Saint Lawrence quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-465, 1 sheet, scale 1:250,000.

Reference (Deposit): Patton, W.W., Jr., and Csejtey, Bela, Jr., 1980, Geologic map of St. Lawrence Island, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-1203, scale 1:250,000.

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