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  3. Mineral Resource Data System (MRDS)

Unnamed (divide between Partin and Little Shotgun creeks)

Occurrence in Alaska, United States with commodities Chromium, Palladium, Platinum, Nickel
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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. Alteration
  8. Mineral occurrence model information
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10307521
Record type Site
Current site name Unnamed (divide between Partin and Little Shotgun creeks)

Geographic coordinates

Geographic coordinates: -149.93282, 63.03957 (WGS84)
Relative position This occurrence is at an elevation of about 4,300 feet on the west side of the divide between Little Shotgun Creek and Partin Creek. The map site is in the NW1/4 of sec. 6, T. 22 S., R. 12 W., of the Fairbanks Meridian. The accuracy of the location is within 1 mile. This is location E-37 of Balen (1990: OFR 34-90).

Site location context

Political divisions (FIPS codes)

Matanuska-Susitna(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Healy A-6(quadrangle 1:63,360 scale)

Healy S(quadrangle 1:100,000 scale)

Healy(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Chulitna River(hydrologic unit)

Susitna River(hydrologic accounting unit)

South Central Alaska(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Chromium Critical Primary
Palladium Critical Secondary
Platinum Critical Secondary
Nickel Critical Secondary

Materials information

Materials Type of material
Chromite Ore
Serpentine Gangue

Alteration

  • (Local) Serpentinization of ultramafic rocks.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Nearby scientific data

(1) -149.93282, 63.03957
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The country rocks in the area of this occurrence are a tectonically mixed assemblages of Upper Devonian serpentinite, basalt, chert, and gabbro. The deposit consists of pods of massive chromite in serpentinite. Rock samples from the surface contained low chromium, palladium, and platinum values (Balen, 1990: OFR 34-90). The chromite probably was a mag,atic segregation on the ultramafic host rocks.
  • Age = the chromite probably was a magmatic segregation in Upper Devonian ultramafic intrusive rocks.

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Valdez Creek

Comments on the workings information

  • Workings / Exploration = Surface sampling only.

Reference information

Bibliographic references

  • Deposit

    Balen, M.D., 1990, Geochemical sampling results from the Bureau of Mines Investigations in the Valdez Creek mining district, Alaska: U.S. Bureau of Mines Open-File Report 34-90, 218 p., 2 plates, scale 1:250,000.

Comments on the references

  • Primary Reference = Balen, 1990 (OFR 34-90)

General comments

Subject category Comment text
Deposit Model Name = Podiform chromite (Cox and Singer, 1986; model 8a)

Reporter information

Type Date Name Affiliation Comment
Reporter 07-APR-00 N. Van Wyck Stevens Exploration Management Corporation

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.