Pmrgx-2

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

Geologic information

Identification information

Deposit ID 10308144
Record type Site
Current site name Pmrgx-2

Geographic coordinates

Geographic coordinates: -160.49441, 55.19824 (WGS84)
Relative position This occurrence is located on the coast of Unga Island between Baralof Bay and Delarof Harbor. It is referred to as PMRGX-2 in Wilson and others (1988, locality 52). The map site is 1.5 miles west-northwest of Kelly Rock. The location is accurate to within 1,200 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary
Lead Primary
Arsenic Secondary
Antimony Secondary

Materials information

Materials Type of material
Pyrite Ore
Dolomite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

(1) -160.49441, 55.19824

Comments on the geologic information

  • Geologic Description = This occurrence consists of a pyrite-rich dolomitic vein that cuts sheared volcaniclastic rocks of the late Eocene to early Oligocene Popof volcanic rocks (Wilson and others, 1995). Samples of the vein and of nearby rhyolite were reported to be marginally anomalous in copper, lead, arsenic, and antimony (Wilson and others, 1988).

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 = Samples 85AWs 294-296 and 82ADt collected by the U.S. Geological Survey in the mid-1980s were reported to be marginally anomalous in copper, lead, arsenic, and antimony (Wilson and others, 1988).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Alaska Resource Data File ARDF PM074

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., Harris, E.E., and Bailey, E.A., 1987, Preliminary analytical results and sample locality map for rock samples collected in 1985 and 1986, Port Moller and Stepovak Bay quadrangles, Alaska: U.S. Geological Survey Open-File Report 87-497, 44 p., 1 plate, 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 Model Name = Polymetallic vein (Cox and Singer, 1986; model 22c)
Deposit Other Comments = This site is located on land patented by, or interim-conveyed to, the Aleut Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 20-JAN-01 S.H. Pilcher U.S. Geological Survey