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Pmrgx-1

Occurrence in Alaska, United States with commodities Silver, Copper, Antimony, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Links to other databases
  10. Bibliographic references
  11. General comments
  12. Reporter information

Geologic information

Identification information

Deposit ID 10308170
Record type Site
Current site name Pmrgx-1

Geographic coordinates

Geographic coordinates: -160.0104, 55.10024 (WGS84)
Relative position This site is located on Nagai Island at the head of Sanborn Harbor approximately 1.5 miles south of Macks Head. It is referred to as PMRGX-1 in Wilson and others (1988, locality 51).The location is accurate to within 1,200 feet.

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Port Moller A-1(quadrangle 1:63,360 scale)

Shumagin Islands N(quadrangle 1:100,000 scale)

Port Moller(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cold Bay(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Alaska Maritime National Wildlife Refuge(National Wildlife Refuge)

National Wildlife Refuge FWS(Type of land area)

FWS(Federal land areas administered by FWS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Silver Primary
Copper Primary
Antimony Critical Secondary
Zinc Critical Secondary

Nearby scientific data

(1) -160.0104, 55.10024
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occcurrence represents a group of geochemical anomalies in the late Cretaceous Shumagin Formation near a contact with the Shumagin batholith (Wilson and others, 1988). Of five samples collected, one is pale-green, fine-grained sulfide-bearing sandstone, one is leucocratic granite(?) of the Shumagin batholith, and three are sandstone and siltstone of the Shumagin Formation. The samples were reported to be anomalous in copper, silver, antimony, and zinc.

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 84AWs145a-c, 84AWs152, and 84ADt169 collected by the U.S. Geological Survey in the mid-1980s were reported to be anomalous in copper, silver, antimony, and zinc (Wilson and others, 1988).

Reference information

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.

Comments on the references

  • Primary Reference = Wilson and others, 1988

General comments

Subject category Comment text
Deposit Other Comments = This site is located on land selected or 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

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.