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No. 100 Thorium Deposit

Occurrence in Lemhi county in Idaho, United States with commodities Thorium, Titanium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10072020
MRDS ID W015829
Record type Site
Current site name No. 100 Thorium Deposit

Geographic coordinates

Geographic coordinates: -113.4984, 44.89159 (WGS84)
Elevation 2560
Relative position 7 MI NE OF LEMHI

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lemhi Pass(quadrangle 1:24,000 scale)

Leadore(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lemhi(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 018N 025E 16 Idaho

Comments on the location information

  • Next To No. 99 Thorium Deposit

Commodities

Commodity Importance
Thorium Primary
Titanium Critical Tertiary

Materials information

Materials Type of material
Rutile Ore
Thorite Ore
Goethite Gangue
Magnetite Gangue
Microcline Gangue
Quartz Gangue
Specularite Gangue

Analytical data

Result 1 CHIP SAMPLE HAD 0.002% THO2

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.4984, 44.89159
ListMap

Economic information

Ore body information

  • Strike N 82 DEG W
    Dip 82 DEG SW
    Thickness 1.74M
    Length 45.72M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Lemhi Pass Area

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • 3 Prospect Pits

Reference information

Bibliographic references

  • Deposit

    Staatz, M. H., 1972, Geology And Description Of Thorium-Bearing Veins, Lemhi Pass Quadrangle, Idaho And Montana: USGS Bull 1351, 94 P

  • Deposit

    V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Dubois Quad

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Siefken, Robert R. (Miller, Pat) 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