Pmrgx-31

Occurrence in Alaska, United States with commodities Silver, Lead, Zinc, Arsenic, Copper, Antimony

Geologic information

Identification information

Deposit ID 10308117
Record type Site
Current site name Pmrgx-31

Geographic coordinates

Geographic coordinates: -160.05844, 55.79425 (WGS84)
Relative position The map site of this occurrence is at an elevation of 850 feet, on the northeast side of a prominent ridge that extends northwest from the head of Clark Bay. The site is about 0.1 mile northeast of the center of sec. 2, T. 51 S., R. 70 W., of the Seward Meridian. It is referred to as PMRGX-31 by Wilson and others (1988, locality 79). The location is accurate to within 2,500 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Primary
Arsenic Secondary
Copper Secondary
Antimony Secondary

Materials information

Materials Type of material
Quartz Gangue

Nearby scientific data

(1) -160.05844, 55.79425

Comments on the geologic information

  • Geologic Description = At this site conglomerate, sandstone, and siltstone of the Paleocene to Eocene Tolstoi Formation are cut by quartz veins and by altered aphanitic dikes or sills (Wilson and others, 1988; 1995). Six samples collected by the U.S. Geological Survey in the mid-1980's were reported to be anomalous in antimony, arsenic, copper, lead, silver, and zinc (Wilson and others, 1988). One mile to the west, a sample of hornfelsed siltstone contained anomalous values in silver.

Economic information

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Alaska Peninsula

Comments on the workings information

  • Workings / Exploration = Rock samples 83AYb532-537 and 83AWs105b (Wilson and others, 1988) were reported to be anomalous in antimony, arsenic, copper, lead, silver, and zinc.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF PM042

Bibliographic references

  • Deposit

    Angeloni, L.M., Wilson, F.H., and Sutlet, S., 1985, Map and tables showing preliminary rock geochemical data, Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Open-File Report 85-470, 179 p., 1 map sheet, scale 1:250,000.

  • Deposit

    Wilson, F.H., White, W.H., and DuBois, G.D., 1988, Brief descriptions of mines, prospects, and mineral occurrences in the Port Moller and Stepovak Bay quadrangles, Alaska Peninsula: U.S. Geological Survey Open-File Report 88-666, 128 p., scale 1:250,000.

  • Deposit

    Wilson, F.H., Detterman, R.L., Miller, J. W., and Case, J.E., 1995, Geologic map of the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska: U.S. Geological Survey Miscellaneous Investigation Series Map I-2272, 1 map sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Wilson and others, 1988

General comments

Subject category Comment text
Deposit Other Comments = This site is on land selected by the Aleut Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 26-JAN-01 S.H. Pilcher U.S. Geological Survey