Tin Creek (in Ear Mountain area)

The Tin Creek (in Ear Mountain area) 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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Site Name

Primary: Tin Creek (in Ear Mountain area)

Commodity

Primary: Tin

Location

State: Alaska
District: Serpentine

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 (Exploration): Status = Inactive

Comment (Deposit): Model Name = Alluvial tin placer (Cox and Singer, 1986; model 39e)

Comment (Geology): Geologic Description = The Ear Mountain upland is cored by a Late Cretaceous (76.7 +/- 2.8 my) composite biotite granite stock (Sainsbury, 1972; Hudson and Arth, 1983). Country rocks to this stock are an impure and schistose carbonate sequence of unknown but probable Paleozoic age. Tin Creek does not have headwaters that cross the contact zone of the Ear Mountain granite stock directly although tundra-mantled slopes above the headwater area continue upward for 1.5 miles south to an area of significant lode tin metallization (Ear Mountain prospect, TE060)). A USBM churn-drill hole at this locality encountered 3 feet of overburden and three feet of gravel. The gravel contained a trace of tin per cubic yard and identified minerals included calcite, quartz, diopside, actinolite, tourmaline, orthoclase, albite, limonite (pseudomorph after pyrite), and cassiterite (Mulligan, 1959, p, 30).

Comment (Workings): Workings / Exploration = One USBM churn-drill hole was completed here (Mulligan, 1959).

Comment (Reference): Primary Reference = Mulligan, 1959 (USBM RI 5493).

Comment (Geology): Age = Quaternary

References

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): Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.

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.

Reference (Deposit): Cobb, E.H., 1975, Tungsten occurrences in Alaska: U.S. Geological Survey Mineral Investigations Resource Map MR-66, 1 sheet, scale 1:250,000.

Reference (Deposit): Mulligan, J.J., 1959, Tin placer and lode investigations, Ear Mountain area, Seward Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 5493, 53 p.

Reference (Deposit): Hudson, T.L., and Arth, J. G., 1983, Tin-granites of Seward Peninsula, Alaska: Geological Society of America Bulletin, v. 94, p. 768-790.

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