Cape Nome

The Cape Nome is a 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: Cape Nome

Commodity

Secondary: Chromium
Secondary: Gold
Secondary: Tungsten
Secondary: Fluorine-Fluorite
Tertiary: Chromium
Tertiary: Fluorine-Fluorite

Location

State: Alaska
District: Nome

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

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Chromite
Ore: Fluorite
Ore: Goethite
Ore: Scheelite
Gangue: Garnet
Gangue: Chlorite
Gangue: Biotite
Gangue: Sericite
Gangue: Sphene
Gangue: Muscovite

Comments

Comment (Geology): Geologic Description = Bedrock at Cape Nome is mostly granitic orthogneiss (Sainsbury, Hummel, and Hudson, 1972 [OFR 72-326]). In an investigation of the orthogneiss for radioactive minerals, heavy mineral analysis revealed trace amounts of chromite (one location), fluorite, and possibly scheelite (White and others, 1953). Gold, claims have been located in the Cape Nome area (Kardex site Kx 286, Heiner and Porter, 1972). The orthogneiss reportedly is late Precambrian in age (Patrick and McClelland, 1995).

Comment (Exploration): Status = Inactive

Comment (Geology): Age = Patrick and McClelland (1995) report a uranium/lead age for the orthogneiss at Cape Nome of 676 +/- 15 million years.

Comment (Reference): Primary Reference = White and others, 1953

Comment (Deposit): Other Comments = Cape Nome is an important locale for heavy riprap; riprap may be hauled on trucks or loaded on barges at the base of the cliff.

Comment (Deposit): Model Name = Accessory minerals in Precambrian orthogneiss.

Comment (Workings): Workings / Exploration = Quarries for road construction materials are present in the Cape Nome area.

References

Reference (Deposit): Patrick, B.E. and McClelland, W.C., 1995, Late Proterozoic granitic magmatism on Seward Peninsula and a Barentian origin for Arctic Alaska-Chukotka: Geology, v. 23, p. 81-94.

Reference (Deposit): Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.

Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.

Reference (Deposit): Sainsbury, C.L., Hummel, C.L., and Hudson, Travis, 1972, Reconnaissance geologic map of the Nome quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 72-326, 28 p., 1 sheet, scale 1:250,000.

Reference (Deposit): White, M.G., West, W.S., and Matsko, J.J., 1953, Reconnaissance for radioactive deposits in the vicinity of Teller and Cape Nome, Seward Peninsula, Alaska: U.S. Geological Survey Circular 244, 8 p.

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