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  3. Mineral Resource Data System (MRDS)

Unnamed (south of Chignik)

Occurrence in Alaska, United States
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Materials information
  6. Mineral occurrence model 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 10307320
Record type Site
Current site name Unnamed (south of Chignik)

Geographic coordinates

Geographic coordinates: -158.39245, 56.26929 (WGS84)
Relative position The approximate location of this occurrence is 1.5 miles south of the village of Chignik (Fields, 1977, locality 8). Site is accurate to within 2 miles.

Site location context

Political divisions (FIPS codes)

Lake and Peninsula(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chignik B-2(quadrangle 1:63,360 scale)

Chignik SE(quadrangle 1:100,000 scale)

Chignik(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Shelikof Strait(hydrologic unit)

Kodiak-Shelikof(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Far West, Incorporated(ANCSA Village)

ANCSA Village NTVPIC(Type of land area)

NTVPIC(Federal land areas administered by NTVPIC)

Geographic areas

Country State
United States Alaska

Materials information

Materials Type of material
Pyrite Ore
Pyrrhotite Ore

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Nearby scientific data

(1) -158.39245, 56.26929
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This site represents a 3-square-mile color anomaly which generally corresponds in location to a Tertiary quartz diorite stock containing up to 0.25 percent disseminated pyrite. The stock cuts sedimentary rocks of the Tolstoy Formation (Eocene and Paleocene age). The siltstones and sandstones near the intrusive are hornfelsed and carry up to 5 percent pyrrhotite (Fields, 1977).
  • Age = Tertiary.

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 = The area was examined by Bear Creek Mining Company during the period 1975-1976 (Fields, 1977).

Reference information

Bibliographic references

  • Deposit

    Fields, E.D., 1977, 1976 Annual report: Alaska search, Chignik area-Bristol Bay region: Bear Creek Mining Company, 44 p., 22 map sheets. (Report held by the Aleut Corporation, Anchorage, Alaska.)

Comments on the references

  • Primary Reference = Fields, 1977

General comments

Subject category Comment text
Deposit Model Name = Porphyry copper? (Cox and Singer, 1986; model 17)
Deposit Other Comments = This site is located on land conveyed to or patented by the Bristol Bay Native Corporation.

Reporter information

Type Date Name Affiliation Comment
Reporter 08-FEB-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.