Brink (Molybdenum Mountain)

Prospect, Inactive

Commodities and mineralogy

Main commodities Mo
Ore minerals molybdenite; powellite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale RM
Quadrangle map, 1:63,360-scale D-1
Latitude 61.804
Longitude -159.25
Nearby scientific data Find additional scientific data near this location
Location and accuracy 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.

Geologic setting

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).
Geologic map unit (-159.252367494996, 61.8032865198334)
Mineral deposit model Porphyry Mo? (Cox and Singer, 1986; model 21b)
Mineral deposit model number 21b?
Age of mineralization 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).

Production and reserves

Indication of production None

References