Unnamed

The Unnamed is a zinc 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

Commodity

Primary: Zinc

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: Polymetallic veins

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The volcanic rock here is silicified and pyrite-bearing.

Rocks

Not available

Analytical Data

Not available

Materials

Gangue: Pyrite

Comments

Comment (Geology): Age = The volcanic rocks here are mapped as part of a mid-Cretaceous assemblage but the age of mineralization could be Cretaceous or Tertiary, the age of volcanic and related hypabyssal intrusive rocks on western St. Lawrence Island (Patton and Csejtey, 1980).

Comment (Workings): Workings / Exploration = A single rock sample contained 700 ppm zinc (Patton and Csejtey, 1971, p. C8, C15).

Comment (Exploration): Status = Inactive

Comment (Reference): Primary Reference = Patton and Csejtey, 1971 (PP 684-C)

Comment (Geology): Geologic Description = Silicified, fine-grained volcanic rock exposed in the streambed contains pyrite and one rock sample contained 700 ppm zinc (Patton and Csejtey, 1971, p. C8, C15).

Comment (Deposit): Model Name = Polymetallic(?) sulfide mineralization in altered volcanic rocks. Deposit model 22c (?); polymetallic veins

References

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.

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., 1971, Preliminary geologic investigations of western St. Lawrence Island, Alaska: U.S. Geological Survey Professional Paper 684-C, p. C1-C15.

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.

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