1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Unnamed

Occurrence in Alaska, United States with commodity Tungsten
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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 10001761
MRDS ID A012548
Record type Site
Current site name Unnamed

Geographic coordinates

Geographic coordinates: -142.11625, 68.35599 (WGS84)
Relative position Location plotted is locality 607 of Barker (1981, pl. A-3); about 4 mi (6.4 km) south southwest of Bear Mountain summit; known to within 500 ft (152.4 m).

Site location context

Political divisions (FIPS codes)

Yukon-Koyukuk(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

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

Table Mountain SW(quadrangle 1:100,000 scale)

Table Mountain C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alaska(hydrologic region)

Federal lands

Arctic 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
Tungsten Critical Primary

Nearby scientific data

(1) -142.11625, 68.35599
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Economic information

Comments on the geologic information

  • Geologic Description = Heavy mineral concentrate sample is from stream draining granitic porphyry at Bear Mt.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Sheenjek

Comments on the workings information

  • Workings / Exploration = 32.8 g of heavy mineral concentrate from 2.5 cu. ft. of bulk sample of alluvial gravel contained 3% W, 0.5% Pb, 0.1% Zn, 50 ppm Pt, 1500 ppm Nb and anomalous La, Sb, Sn, Be, BI, Cr, and Zr (Barker, 1981, p. 146).

Reference information

Bibliographic references

  • Deposit

    Barker, J.C., and Swainbank, R.C., 1985, A tungsten-rich porphyry molybdenum occurrence at Bear Mountain, northeast Alaska: U.S. Bureau of Mines Open-File Report 8-85, 64 p.

  • Deposit

    Barker, J.C., 1978, Mineral Investigations of certain lands in the eastern Brooks Range: a summary report: US Bureau of Mines Open-File No. 63-78

  • Deposit

    Barker, J.C., 1981, Mineral investigations of certain lands in the eastern Brooks Range, 1978: U.S. Bureau of Mines Open-File 37-81, 288 p., 8 sheets.

Comments on the references

  • Primary Reference = Barker (1981)

General comments

Subject category Comment text
Deposit Model Name = Stream placer

Reporter information

Type Date Name Affiliation Comment
Reporter 20-SEP-1996 K.R. Leonard U.S. Geological Survey
Reporter 20-SEP-1996 D.F. Huber U.S. Geological Survey
Reporter 20-SEP-1996 J.M. Schmidt U.S. Geological Survey
Reporter 20-SEP-1996 J.H. Dover 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.