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  3. Mineral Resource Data System (MRDS)

Unnamed (north of the Tubutulik River)

Occurrence in Alaska, United States with commodities Bismuth, 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. Materials information
  7. Host and associated rocks
  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 10001931
MRDS ID A012765
Record type Site
Current site name Unnamed (north of the Tubutulik River)

Geographic coordinates

Geographic coordinates: -162.38331, 65.24937 (WGS84)
Relative position This occurrence is on a small ridge on the north side of Death Valley and between the headwater reaches of two unnamed north tributaries to Tubutulik River. It is at approximately 1,500 feet in elevation. This is locality 44 and 45 of Gamble (1988).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bendeleben A-1(quadrangle 1:63,360 scale)

Bendeleben SE(quadrangle 1:100,000 scale)

Bendeleben(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Norton Bay(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Bismuth Critical Primary
Tungsten Critical Secondary

Materials information

Materials Type of material
Galena Ore
Fluorite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock

Nearby scientific data

(1) -162.38331, 65.24937
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = This occurrence is in the eastern-most part of the Bendeleben Mountains in an area of high-grade metamorphic rocks intruded by many small granitic bodies (Till and others, 1986). A grab sample of gossanous schist contained greater than 10,000 ppm bismuth (Miller and Grybeck, 1973). Another grab sample of calc-silicate hornfels, schist, and granitic rock contained 68 ppm Bi and 100 ppm W (Gamble, 1988).
  • Age = Cretaceous ; Epigenetic mineralization in metamorphic rocks of Seward Peninsula is primarily of Cretaceous age.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Koyuk

Comments on the workings information

  • Workings / Exploration = Exploration activities at this location are not known but are probably minimal.

Reference information

Bibliographic references

  • Deposit

    Miller, T.P., and Grybeck, D.J., 1973, Geochemical survey of the eastern Solomon and southeastern Bendeleben quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 553, 115 p.

  • Deposit

    Till, A.B., Dumoulin, J.A., Gamble, B. ., Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data, Soloman, Bendeleben, and southern Kotzebue quadrangles, Seward Peninsula, Alaska: U.S. Geological Survey Open-File Report 86-276, 10 p., 3 plates, scale 1:250,000.

  • Deposit

    Gamble, B.M., 1988, Non-placer mineral occurrences in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: U.S. Geological Survey Map MF-1838-B, 13 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Miller and Grybeck, 1973

General comments

Subject category Comment text
Deposit Model Name = Bismuth in metamorphic rocks

Reporter information

Type Date Name Affiliation Comment
Reporter 15-MAR-1999 Travis L. Hudson Applied Geology

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.