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

Wide Bay

Occurrence in Alaska, United States with commodity Copper
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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. Alteration
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10003266
MRDS ID A106009
Record type Site
Current site name Wide Bay

Geographic coordinates

Geographic coordinates: -166.6524, 53.91578 (WGS84)
Relative position North corner of Wide Bay, Unalaska Bay, Unalaska Island. Anomaly no. 26 of Christie (1974).

Site location context

Political divisions (FIPS codes)

Aleutians West(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Unalaska C-2(quadrangle 1:63,360 scale)

Unalaska NW(quadrangle 1:100,000 scale)

Unalaska SE(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fox Islands(hydrologic unit)

Aleutian Islands(hydrologic accounting unit)

Southwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Ounalashka Corporation(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Alteration

  • (Local) Silicification is the only form of alteration other than oxidation described. Leaching ranges from moderate to intense.

Nearby scientific data

(1) -166.6524, 53.91578
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This is a very small (100 by 200 ft, 30 by 60 m) color anomaly localized along andesite dikes that cut volcanic flows and pyroclastic rocks of the Unalaska Formation (see Drewes and others, 1961). Chalcopyrite and pyrite occurs as disseminations in narrow envelopes in wall rocks surrounding the dikes which trend 300x (N30xE) and dip steeply south. Oxidation obscures original textures and may have obliterated evidence of primary chalcopyrite. Very minor chalcopyrite remains. Fracturing is moderately developed.
  • Age = Miocene or younger

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Aleutians

Comments on the workings information

  • Workings / Exploration = Brief reconnaissance mapping and collection of one silt sample yielding background results for copper, molybdenum, zinc, silver, and gold.

Reference information

Bibliographic references

  • Deposit

    Drewes, Harold, Fraser, G.D., Snyder, G.L., and Barnett, H.F., Jr., 1961, Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska: U.S. Geological Survey Bulletin 1028-S, p. 583-676.

  • Deposit

    Christie, J.S., 1974, Aleut-Quintana-Duval 1974 joint venture, final report: Unpublished Quintana Minerals Corporation report, 24 p., 3 appendices, 2 maps. (Report held by the Aleut Corporation, Anchorage, Alaska.)

Comments on the references

  • Primary Reference = Christie, 1974

Reporter information

Type Date Name Affiliation Comment
Reporter 04-MAY-1994 Damon Bickerstaff U.S. Geological Survey
Reporter 04-MAY-1994 F.H. Wilson 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.