1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Unnamed (on the western part of Amchitka Island)

Occurrence in Alaska, United States with commodities Iron, Copper, Lead, 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. Materials information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10308193
Record type Site
Current site name Unnamed (on the western part of Amchitka Island)

Geographic coordinates

Geographic coordinates: -178.80231, 51.59887 (WGS84)
Relative position This site represents various locations on the western one-third of Amchitka Island. Specific locations are not available.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gareloi Island B-3 SE(quadrangle 1:24,000 scale)

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

Gareloi Island SE(quadrangle 1:250,000 scale)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Iron Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Pyrite Ore

Nearby scientific data

(1) -178.80231, 51.59887
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Pyritic zones are abundant on the western one-third of Amchitka Island. Pyrite in quantities up to one-third of the volume of the rock occurs in volcanic rock of the Amchitka Formation and in sedimentary rocks of the Banjo Point Formation (Powers, 1960, p. 541). The pyrite mineralization tends to follow zones of fractures of diverse strike. One sample assayed trace copper, lead, and zinc.
  • Age = Tertiary.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Aleutian Islands

Reference information

Bibliographic references

  • Deposit

    Powers, H.A., Coats, R.R., and Nelson, W.H., 1960, Geology and submarine physiography of Amchitka Island, Alaska: U.S. Geological Survey Bulletin 1028-P, p. 521-554, 1 map sheet, scale 1 inch = 1.5 miles.

Comments on the references

  • Primary Reference = Powers and others, 1960

General comments

Subject category Comment text
Deposit Other Comments = Site is located in Alaska Maritime Natural Wildlife Refuge.

Reporter information

Type Date Name Affiliation Comment
Reporter 24-JAN-00 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.