Deer Creek (Ear Mountain area)

The Deer Creek (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: Deer Creek (Ear Mountain area)

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 (Workings): Workings / Exploration = One USBM churn-drill hole has been completed on the creek (Mulligan, 1959, p. 20).

Comment (Geology): Age = Quaternary

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

Comment (Geology): Geologic Description = Deer Creek has headwaters in the contact zone of the Ear Mountain granite stock (Sainsbury, 1972). This is a Late Cretaceous (76.7 +/- 2.9 my; Hudson and Arth, 1983, p. 769) composite biotite granite that intrudes an impure and schistose carbonate sequence, with some metapelitic rocks, of unknown but probable Paleozoic age. The USBM completed one churn-drill hole at about 350 feet elevation on this creek (Mulligan, 1959, p. 20). The lower part of the 6 feet of gravel and the adjacent bedrock here contained 0.02 pounds of tin per cubic yard. Minerals identified in the churn-drill sample include quartz, orthoclase, oligoclase, pyrite, limonite pseudomorphs after pyrite, and small amounts of grossularite garnet, tourmaline, idocrase, chondrodite, epidote, and actinolite. Cassiterite was identified (Mulligan, 1959, p. 29).

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

Comment (Exploration): Status = Inactive

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

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): 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): 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.

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