Halibut Bay 48

The Halibut Bay 48 is a chromium 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: Halibut Bay 48

Commodity

Primary: Chromium

Location

State: Alaska
District: Kodiak

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: Podiform chromite (major)

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: The ultramafic country rock is serpentinized?

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Chromite

Comments

Comment (Workings): Workings / Exploration = This deposit is inferred to contain 4000 tons of rock grading 6 percent chromite. One six-foot chip sample assayed 3.8 percent chrome, 120 ppm cobalt, 640 ppm copper, 120 ppm nickel, with trace platinum and palladium.

Comment (Reference): Primary Reference = Foley and Barker, 1985

Comment (Reserve-Resource): Reserves = This deposit is estimated to contain 4000 tons of rock grading 6 percent chromite.

Comment (Geology): Geologic Description = This chromite occurrence, one of several within the Halibut Bay ultramafic complex, consists of a zone of disseminated grains and bands or stringers of chromite. The zone, inferred to measure 150 by 6 feet and to have inferred depth of 38 feet, constitutes an inferred resource of approximately 4000 tons of rock containing an estimated 6 percent chromite (Foley and Barker, 1985, table 13). A chip sample across 6 feet assayed 120 ppm cobalt, 3.8 percent chrome, 640 ppm copper, 120 ppm nickel, and trace amounts of platinum and palladium (Foley and Barker, 1985, table 14). ? the Halibut Bay ultramafic complex, consisting mostly of dunite, gabbro, pyroxenite, and peridotite, occurs within sedimentary units of the Uyak formation of Cretaceous age

Comment (Deposit): Model Name = Podiform chromite (Cox and Singer, 1986; model 8b).

Comment (Deposit): Other Comments = Site is located within Kodiak National Wildlife Refuge.

Comment (Exploration): Status = Inactive

References

Reference (Deposit): Foley, J.Y., and Barker, J.C., 1985, Chromite deposits along the Border Ranges fault, part 1, Field investigations and descriptions of chromite deposits: U.S. Bureau of Mines Information Circular 8990, 58 p.

Reference (Deposit): Foley, J.Y., Burns, L.E., Schneider, C.L., and Forbes, R.B., 1989, Preliminary report of platinum group element occurrences in Alaska: Alaska Division of Geological and Geophysical Surveys Public Data File 89-20, 32 p., 1 map sheet, scale 1:2,500,000.

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