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  3. Mineral Resource Data System (MRDS)

Syenite Gulch

Occurrence in Alaska, United States with commodities Uranium, 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. 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 10003182
MRDS ID A015719
Record type Site
Current site name Syenite Gulch
Related records 10184785

Geographic coordinates

Geographic coordinates: -161.23333, 65.4794 (WGS84)
Relative position This occurrence is at an elevation of about 1,600 feet, approximately 2.5 miles north of Granite Mountain. The site is in section 19, T. 1 N., R. 12 W., of the Kateel River Meridian. Cobb, 1972 (MF-389), location 33.

Site location context

Political divisions (FIPS codes)

Northwest Arctic(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Candle B-5(quadrangle 1:63,360 scale)

Candle S(quadrangle 1:100,000 scale)

Candle(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Goodhope-Spafarief Bay(hydrologic unit)

Northern Seward Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Uranium Tertiary
Thorium Tertiary

Comments on the commodity information

  • Ore Material = uranothorianite

Materials information

Materials Type of material
Thorite Ore

Nearby scientific data

(1) KJiv
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = At this occurrence, uranothoriate and thorite(?) occur in stream sediments overlying monzonite or syenite of the Late Cretaceous Granite Mountain pluton (Gault and others, 1953). Samples from prospect pits indicate that the amount of radioactivity decreases with depth. The highest equivalent uranium value from the samples was 0.088%.
  • Age = Late Cretaceous.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Fairhaven

Comments on the workings information

  • Workings / Exploration = In 1947, the U.S. Geological Survey sampled the creek to evaluate the radioactive mineral potential.

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Gault and others, 1953

General comments

Subject category Comment text
Deposit Model Name = Radioactive minerals in stream sediments.
Deposit Other Comments = Stream gradient over 200 feet per mile.

Reporter information

Type Date Name Affiliation Comment
Reporter 12-JAN-00 Williams, Anita 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.