Ishut Creek

The Ishut Creek 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: Ishut Creek

Commodity

Primary: Tungsten

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: Scheelite

Comments

Comment (Reference): Primary Reference = Mulligan, 1959 (USBM RI 5520)

Comment (Workings): Workings / Exploration = A total of five churn-drill holes were completed by the USBM on Ishut Creek in 1957 (Mulligan, 1959). Two of these were at the location of this occurrence and three were about 2.5 miles downstream (about 0.3 miles upstream from the mouth of Ishut Creek on Anikovik River).

Comment (Geology): Geologic Description = Bedrock in the drainage is a slaty metapelitic and metasandstone sequence of unknown but probable Paleozoic age locally intruded by altered mafic bodies (Sainsbury, 1972). Heavy mineral concentrate from two USBM churn-drill holes contained pyrite, limonite psuedomorphs after pyrite, magnetite, apatite, tourmaline, zircon, and traces of scheelite (Mulligan, 1959, p. 19). Three churn-drill holes on lower Ishut Creek (about 0.3 miles upstream from the mouth) contained heavy mineral concentrates with pyrite, limonite psuedomorphs after pyrite, augite, ankerite and zircon. A trace of tin was detected but tin-bearing minerals were not identified (Mulligan, 1959, p. 18-19).

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

Comment (Geology): Age = Quaternary

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): 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): 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.

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