Brink (Molybdenum Mountain)

Prospect in Alaska, United States with commodity Molybdenum

Geologic information

Identification information

Deposit ID 10002478
MRDS ID A013413
Record type Site
Current site name Brink (Molybdenum Mountain)
Related records 10233731

Geographic coordinates

Geographic coordinates: -159.25289, 61.80324 (WGS84)
Relative position This prospect is on the southeast side of Molybdenum Mountain at an elevation of about 800 feet, upslope of the Owhat River. The map site is in the SE/4 sec. 21, T. 20 N., R. 55 W., of the Seward Meridian. It is approximately located, perhaps within one-half mile. This is locality 4 of Hoare and Cobb (1972, 1977). Hoare and Coonrad (1959) showed a prospect symbol at this location.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Molybdenite Ore
Powellite Ore
Quartz Gangue

Mineral occurrence model information

Model code 80
USGS model code 21b
Deposit model name Porphyry Mo, low-F

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -159.25289, 61.80324

Comments on the geologic information

  • Geologic Description = Float specimens from this location contained molybdenite and powellite (?) in quartz (Smith, 1942). Hoare and Coonrad (1959) show a prospect symbol in a granitic stock at this location. The granitic stock may be part of a Cretaceous or Tertiary igneous assemblage that is widespread through southwest Alaska. The country rocks to the stock are clastic sedimentary rocks that may be part of the mid-Cretaceous Kuskokwim Group (Hoare and Coonrad, 1959) or possibly an older Paleozoic or Mesozoic section correlative with the Gemuk Group (Bundtzen and Laird, 1991).
  • Age = Cretaceous or Tertiary . The granitic rocks may be part of a Cretaceous or Tertiary igneous assemblage that is widespread through southwest Alaska. The country rocks to the stock are clastic sedimentary rocks that may be part of the mid-Cretaceous Kuskokwim Group (Hoare and Coonrad, 1959) or possibly an older Paleozoic or Mesozoic section correlative with the Gemuk Group (Bundtzen and Laird, 1991).

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aniak

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013413
USGS Alaska Resource Data File ARDF RM012

Bibliographic references

  • Deposit

    Hoare, J M., and Cobb, E.H., 1972, Metallic mineral resources map of the Russian Mission quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-444, scale 1:250,000.

  • Deposit

    Hoare, J.M., and Cobb, E.H., 1977, Mineral occurrences (other than mineral fuels and construction materials) in the Bethel, Goodnews, and Russian Mission quadrangles, Alaska: U.S. Geological Survey Open-File Report 77-156, 98 p.

  • Deposit

    Bundzten, T.K., and Laird, G.M., 1991, Geology and mineral resources of the Russian Mission C-1 Quadrangle, southwest Alaska: Alaska Division of Geological and Geophysical Surveys Professional Report 109, 24 p.

  • Deposit

    Hoare, J M., and Cobb, E.H., 1972, Metallic mineral resources map of the Russian Mission quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-444, 1 sheet, scale 1:250,000.

  • Deposit

    Smith, P.S., 1942, Mineral industry of Alaska in 1940: U.S. Geological Survey Bulletin 933-A, p. 1-102.

  • Deposit

    Hoare, J.M., and Coonrad, W.L., 1959, Geology of the Russion Mission quadrangle, Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-292, 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Hoare and Cobb, 1977

General comments

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

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUN-2001 Travis L. Hudson Applied Geology
Reporter 10-JUN-2001 Travis L. Hudson Applied Geology