PMRGX-14

Occurrence, Inactive

Commodities and mineralogy

Main commodities Ag; Pb; Zn
Other commodities As; Cu; Sb; Sn
Ore minerals pyrite
Gangue minerals quartz

Geographic location

Quadrangle map, 1:250,000-scale PM
Quadrangle map, 1:63,360-scale C-1
Latitude 55.731
Longitude -160.124
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located on the Alaska Peninsula on the east shore of upper American Bay. It is in the SE1/4 of sec. 29, T. 51 S., R. 70 W., of the Seward Meridian. This site is referred to as PMRGX-14 in Wilson and others (1988, locality 63). The location is accurate to within 1,200 feet.

Geologic setting

Geologic description

This occurrence consists of a 3-inch vein of fine-grained, massive sulfides in andesite that intrudes sedimentary units of the Paleocene to Eocene Tolstoi Formation (Wilson and others, 1995). The locality is approximately 2,500 feet southeast of the contact of the American Bay batholith. One rock sample collected by the U.S. Geological Survey in the mid-1980s was reported to be anomalous in antimony, arsenic, copper, lead, silver, tin, and zinc (Wilson and others, 1988).
Geologic map unit (-160.126021870241, 55.7301851944184)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c)
Mineral deposit model number 22c
Age of mineralization Tertiary.

Production and reserves

Workings or exploration Rock sample 83APk33 collected by the U.S. Geological Survey in the mid-1980s was reported to be anomalous in antimony, arsenic, copper, lead, silver, tin, and zinc (Wilson and others, 1988).
Indication of production None

Additional comments

This site is located on land selected by the Aleut Corporation.

References