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Unnamed (near Tyonek)

Occurrence in Alaska, United States with commodities Iron, Titanium, Zirconium, Cobalt, Tantalum, Thorium
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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. Mineral occurrence model information
  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 10003506
MRDS ID A106264
Record type Site
Current site name Unnamed (near Tyonek)

Geographic coordinates

Geographic coordinates: -151.30267, 61.0295 (WGS84)
Relative position Ilmenite beach sands occur for several miles along the west side of Cook Inlet south of the village of Old Tyonek in Section 19, T.11 N., R. 11 W. (U.S. Bureau of Mines, 1998, MAS # 0020840009). Location approximate within one mile.

Site location context

Political divisions (FIPS codes)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tyonek A-4 SE(quadrangle 1:24,000 scale)

Tyonek SE(quadrangle 1:100,000 scale)

Tyonek C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Redoubt-Trading Bays(hydrologic unit)

Western Cook Inlet(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Iron Primary
Titanium Critical Primary
Zirconium Critical Primary
Cobalt Critical Secondary
Tantalum Critical Secondary
Thorium Secondary

Materials information

Materials Type of material
Euxenite Ore
Ilmenite Ore
Magnetite Ore
Zircon Ore

Mineral occurrence model information

Model code 121
USGS model code 39c
Deposit model name Shoreline placer Ti

Nearby scientific data

(1) -151.30267, 61.0295
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = Ilmenite beach sands occur for several miles along the west side of Cook Inlet between the village of Old Tyonek and Shirleyville. Cook (1969, p. 99-105) evaluated this occurrence by concentrating the heavy minerals in a -48 mesh fraction. He noted potentially valuable minerals to be magnetite, ilmenite and zircon. Minor amounts of euxenite, a source of columbium, tantalum and thorium were also noted. Very limited descriptive information is published on this prospect.
  • Age = Quaternary

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Mining district

District name Redoubt

Reference information

Bibliographic references

  • Deposit

    U.S. Bureau of Mines, 1998, Minerals Availability System/Minerals Industry Location System (MAS/MILS), Talkeetna Quadrangle: Worldwide Web URL http://imcg.wr.usgs.gov/data.html.

  • Deposit

    Cook, D.J., 1969, Heavy minerals in Alaskan beach sand deposits: University of Alaska, Mineral Industry Research Laboratory Report 20, 114 p.

Comments on the references

  • Primary Reference = Cook, 1969

General comments

Subject category Comment text
Deposit Model Name = Placer Ti (Cox and Singer, 1986; model 39c)
Deposit Other Comments = Very limited descriptive information is published on this prospect.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1998 Madelyn A. Millholland Millholland & Associates

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.