Neacola River

The Neacola River is a copper and molybdenum 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: Neacola River

Commodity

Primary: Copper
Primary: Molybdenum
Secondary: Lead

Location

State: Alaska
District: Redoubt

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-Mo

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Unknown

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Azurite
Ore: Bornite
Ore: Molybdenite
Gangue: Quartz

Comments

Comment (Exploration): Status = Inactive

Comment (Geology): Geologic Description = Disseminated quartz veins containing pyrite, azurite, and traces of bornite in medium- to coarse-grained biotite-hornblende granodiorite (Nelson and others, 1983; unit Ti4). The quartz veins locally contain 3,600 ppm Mo and 8,800 ppm Cu.

Comment (Deposit): Other Comments = Area is very rugged and partly covered by glaciers. Site is in Lake Clark National Park and Preserve.

Comment (Deposit): Model Name = Porphyry Cu-Mo (Cox and Singer, 1986; model 21a)

Comment (Reference): Primary Reference = Nelson and others, 1985

Comment (Reserve-Resource): Reserves = No reserves

Comment (Workings): Workings / Exploration = Veins locally contain 3,600 ppm Mo and 8,800 ppm Cu (Nelson and others, 1985).

Comment (Production): Production Notes = No production

Comment (Geology): Age = Veins cut Tertiary granodiorite.

References

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): Resource Associates of Alaska, Inc., 1976, Geology and geochemistry of certain land within the Lake Clark National Park: Contract report for U.S. Bureau of Mines, 109 p.

Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-A, 25 p.

Reference (Deposit): Cobb, E.H., and Reed, B.L., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Iliamna, Lake Clark, Lime Hills, and McGrath quadrangles, Alaska - Supplement to Open-File Report 76-485: U.S. Geological Survey Open-File Report 81-1343-B, 20 p.

Reference (Deposit): Nelson, W.H., Carlson, C., and Case, J.E., 1983, Geologic map of the Lake Clark quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-1114-A, scale 1:250,000.

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