Unnamed (near summit of Gold Hill)

The Unnamed (near summit of Gold Hill) is a 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: Unnamed (near summit of Gold Hill)

Commodity

Primary: Molybdenum

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: Porphyry Mo, low-F

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Molybdenite
Gangue: Quartz

Comments

Comment (Deposit): Model Name = Porphyry Mo(?) (Cox and Singer, 1986; model 21b)

Comment (Deposit): Other Comments = See also HE172 and HE173.

Comment (Geology): Geologic Description = The country rocks in the area of this prospect are deformed and metamorphosed Lower Cretaceous and Upper Jurassic turbidites (Wilson and others, 1998) cut by Lower Tertiary to Upper Cretaceous(?) diorite and quartz monzonite (Smith and others, 1988). The deposit is in metasedimentary and altered intrusive rocks, and consists of widely-spaced zones of disseminated molybdenite. This deposit probably is related to other porphyry-type deposits in the Gold Hill area (HE172 and HE173).

Comment (Workings): Workings / Exploration = This prospect has been explored by soil sampling and trenching. At least two shallow drill holes totaling 220 feet, were completed in the 1970's (D.L. Stevens, oral communication, 1999). Geophysical exploration has included a regional aeromagnetic survey over the prospect and surrounding area, as well as ground magnetics, IP, and EM.

Comment (Geology): Age = Probably Late Cretaceous or younger.

Comment (Reference): Primary Reference = Balen and others, 1991

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Balen, M.D., and others, 1991, Executive summary of the Bureau of Mines investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Special Publication, 43 p.

Reference (Deposit): Kurtak, J.M., Southworth, D.D., Balen, M.D., and Clautice, K.H., 1992, Mineral investigations in the Valdez Creek mining district, south-central Alaska: U.S. Bureau of Mines Open-File Report 1-92, 659 p., 2 plates, scale 1:250,000.

Reference (Deposit): Smith, T.E., Kline, G.L., Kline, J.T., and Coursey, N.D., 1975, Analyses of rock and stream-sediment samples, Healy A-2 quadrangle, south-central Alaska: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF69, 2 sheets, scale 1:63,360.

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): 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.

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