Unnamed (south of Chignik)

The Unnamed (south of Chignik) is 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: Unnamed (south of Chignik)

Commodity

Not available

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

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Pyrrhotite

Comments

Comment (Workings): Workings / Exploration = The area was examined by Bear Creek Mining Company during the period 1975-1976 (Fields, 1977).

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

Comment (Deposit): Other Comments = This site is located on land conveyed to or patented by the Bristol Bay Native Corporation.

Comment (Geology): Geologic Description = This site represents a 3-square-mile color anomaly which generally corresponds in location to a Tertiary quartz diorite stock containing up to 0.25 percent disseminated pyrite. The stock cuts sedimentary rocks of the Tolstoy Formation (Eocene and Paleocene age). The siltstones and sandstones near the intrusive are hornfelsed and carry up to 5 percent pyrrhotite (Fields, 1977).

Comment (Geology): Age = Tertiary.

Comment (Reference): Primary Reference = Fields, 1977

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Fields, E.D., 1977, 1976 Annual report: Alaska search, Chignik area-Bristol Bay region: Bear Creek Mining Company, 44 p., 22 map sheets. (Report held by the Aleut Corporation, Anchorage, Alaska.)

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