Unnamed (east of Yantarni Creek)

The Unnamed (east of Yantarni Creek) is a copper 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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Unnamed (east of Yantarni Creek)

Commodity

Primary: Copper

Location

State: Alaska
District: Alaska Peninsula

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: Porphyry Cu

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Color anomaly associated with diorite stock.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Chalcopyrite
Gangue: Quartz

Comments

Comment (Geology): Age = Tertiary.

Comment (Geology): Geologic Description = This site is marked by a color anomaly which coincides with a diorite stock (Detterman and others, 1981; Cox and others 1981). The stock, dated at 32-40 million years, intrudes the Jurassic Naknek and the Eocene and Paleocene Tolstoi Formations (Detterman and others, 1981). The diorite is reported to be altered and to contain disseminated porphyry-type mineralization (MacKevett and Holloway, 1977). The main drainage in the area is anomalous in zinc (Cox and others, 1981). No mention is made of ore or gangue minerals.

Comment (Deposit): Other Comments = This site is located on land selected by the Koniag Native Corporation.

Comment (Deposit): Model Name = Porphyry copper (Cox and Singer, 1986, model 17)

Comment (Reference): Primary Reference = MacKevett and Holloway, 1977

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Cox, D.P., Detra, D.E., and Detterman, R.L., 1981, Mineral resource maps of the Chignik and Sutwik Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF- 1053-K, 2 map sheets, scale 1:250,000.

Reference (Deposit): MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.

Reference (Deposit): Detterman, R.L., Miller, T.P., Yount, M.E., and Wilson, F.H.,1981, Geologic map the Chignik and Sutwik Island quadrangles Alaska: U.S. Geologic Survey Miscellaneous Investigations Series Map I- 1229, 1 map sheet, scale 1:250,000.

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