North Carolina

The North Carolina is a gold and antimony 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: North Carolina
Secondary: Antimony Creek

Commodity

Primary: Gold
Primary: Antimony

Location

State: Alaska
District: Valdez Creek

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Simple Sb (veins, pods, etc)

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The stibnite is oxidized to stibiconite and kermesite.

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Ore: Pyrite
Ore: Stibnite
Gangue: Calcite
Gangue: Quartz

Comments

Comment (Geology): Age = Veins cut Upper Jurassic to Lower Cretaceous metasedimentary rocks.

Comment (Reference): Primary Reference = Capps, 1919

Comment (Workings): Workings / Exploration = The property was explored in 1918 by two short tunnels. Samples contain up to 37.5% antimony and 6 ppm gold (Hawley and others, 1968), and up to 28% antimony and 520 ppb gold (Balen, 1990: OFR 34-90).

Comment (Exploration): Status = Inactive

Comment (Production): Production Notes = In 1919 approximately 3 tons of ore was stockpiled but never shipped.

Comment (Geology): Geologic Description = The country rocks in the area of the prospect consist mainly of Lower Cretaceous and Upper Jurassic, intensely deformed, metamorphosed flysch, probably several thousand meters thick (Wilson and others, 1998). The strata are intruded by felsite dikes, and a pyroxenite plug. The deposit consists of auriferous quartz-pyrite-stibnite veins that cut the flysch. A little gold also occurs in the margins of the felsite dikes. Samples contain up to 37.5% antimony and 6 ppm gold (Hawley and others, 1968), and up to 28% antimony and 520 ppb gold (Balen, 1990: OFR 34-90).

Comment (Deposit): Model Name = Simple Sb (Cox and Singer, 1986; model 27d)

References

Reference (Deposit): Joesting, H.R., 1942, Antimony and tungsten deposits in the Fairbanks and adjacent districts: Alaska Department of Mines Miscellaneous Report 194-11, 25 p.

Reference (Deposit): Joesting, H.R., 1943, Strategic mineral occurrences in interior Alaska, supplement to pamphlet no. 1: Alaska Territorial Department of Mines Pamphlet 2, 26 p.

Reference (Deposit): Capps, S.R., 1919, Mineral resources of the upper Chulitna region: U.S. Geological Survey Bulletin 692-D, p. 207-232.

Reference (Deposit): Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Healy quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-1062, 113 p.

Reference (Deposit): Hawley, C.C., Meier, A.L., and Miller, R.L., 1968, Geochemical investigations at Antimony Creek antimony prospect, northern Talkeetna Mountains, Alaska: U.S. Geological Survey Open-File Report 337, 9 p.

Reference (Deposit): Wilson, F.H., Dover, J.H., Bradley, D.C., Weber, F.R., Bundtzen, T.K., and Haeussler, P.J., 1998, Geologic map of central (interior) Alaska: U.S. Geological Survey Open-File Report 98-133, 17 p., 2 sheetsm, scale 1:500,000.

Reference (Deposit): Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.

Reference (Deposit): Berg, H.C., and Cobb, E.H., 1967, Metalliferous Lode Deposits of Alaska. U.S. Geological Survey Bulletin 1246, 254 p.

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