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

Unnamed (on shore of Trident Bay)

Occurrence in Alaska, United States with commodity Iron
Map
XML
JSON
KML
C
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. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308480
Record type Site
Current site name Unnamed (on shore of Trident Bay)

Geographic coordinates

Geographic coordinates: -165.5594, 54.14013 (WGS84)
Relative position This site, color anomaly 43 of Christie (1974), is located on the southeast coast of Akun Island. The occurrence is on the north and south shores of the southwest arm of Trident Bay. Site location is accurate to within 500 feet.

Site location context

Political divisions (FIPS codes)

Aleutians East(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Unimak A-5(quadrangle 1:63,360 scale)

Akutan Island(quadrangle 1:100,000 scale)

Unimak(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

The Akutan 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
Iron Primary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Primary volcanic feldspars are partly altered to clay and epidote.

Nearby scientific data

(1) -165.5594, 54.14013
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence represents a color anomaly which is approximately 1,500 by 200 feet (Christie, 1974). Rocks at this site include andesite, vescicular andesite, feldspar porphyry, basalt, tuff, and conglomerate. The volcanic rocks are of probable Tertiary age (Christie, 1974; Simpson, 1985). The primary feldspars have been partially altered to clay and epidote. Strong gossan occurs along the north shore of the southwest arm at Trident Bay. Extensions of this gossan may be covered by the conglomerate. A weak gossan is present along the south shore of this arm of the bay. The altered rocks contain 1 to 4 percent pyrite, with only a minor amount of which occurs as fracture fillings. The Aleut-Quintana-Duval JV collected 5 silt and 2 soil samples at this site in 1974 (Christie, 1974). No anomalous metal values were detected.
  • Age = Tertiary or younger.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Aleutian Islands

Comments on the workings information

  • Workings / Exploration = The Aleut-Quintana-Duval JV briefly examined the site and collected a few silt and soil samples in 1974 (Christie, 1974). No anomalous metal values were detected.

Reference information

Bibliographic references

  • 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

General comments

Subject category Comment text
Deposit Other Comments = This site is on lands patented or conveyed to the Aleut Native Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-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.