Halibut Bay 16G

Occurrence in Alaska, United States with commodity Copper

Geologic information

Identification information

Deposit ID 10001695
MRDS ID A012476
Record type Site
Current site name Halibut Bay 16G

Geographic coordinates

Geographic coordinates: -154.59746, 57.35826 (WGS84)
Relative position This site is located 4.9 miles north of Anvil Mountain is sec. 33, T. 32 S., R. 33 W., of the Seward Meridian (Foley and Barker, 1985, figure 26 locality 16G; Foley and others, 1989, locality 32). Site is location is accurate to within several hundred feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrrhotite Ore

Mineral occurrence model information

Model code 13
USGS model code 7a
Deposit model name Synorogenic-synvolcanic Ni-Cu
Mark3 model number 19

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Halibut Bay Complex
    Rock description Halibut Bay Complex
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite > Clinopyroxenite
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

(1) -154.59746, 57.35826

Comments on the geologic information

  • Geologic Description = At this mineral occurrence, one of several within the Halibut Bay ultramafic complex, chalcopyrite and pyrrhotite are present within a 3-foot-wide zone of pyroxenite. A sample of this material contained 2,000 ppm copper and traces of gold, platinum, and palladium (Foley and Barker, 1985, table 14). Nickel content was not determined.? the Halibut Bay ultramafic complex, consisting mostly of dunite, gabbro, pyroxenite, and peridotite, occurs within sedimentary units of the Uyak formation of Cretaceous age.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Kodiak

Comments on the workings information

  • Workings / Exploration = A grab sample contained 2000 ppm copper and traces of gold, platinum, and palladium.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012476
USGS Alaska Resource Data File ARDF KR029

Bibliographic references

  • 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.

  • 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.

Comments on the references

  • Primary Reference = Foley and Barker, 1985

General comments

Subject category Comment text
Deposit Model Name = Synorogenic-synvolcanic nickel-copper (Cox and Singer, 1986; model 7a?)
Deposit Other Comments = Site is located within Kodiak National Wildlife Refuge.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-SEP-1998 S.H. Pilcher U.S. Geological Survey