Thorite No. 11 Claim

Occurrence in Lemhi county in Idaho, United States with commodities Thorium, REE
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10071959
MRDS ID W015749
MAS/MILS ID 0160590251
Record type Site
Current site name Thorite No. 11 Claim
Alternate or previous names Thor Nos.1 and 2 and 7, ThO2 No. 11

Geographic coordinates

Geographic coordinates: -113.5087, 44.86159 (WGS84)
Elevation 2316
Relative position 5.5 MI E 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(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 28, 29 W2NW (28), NWNWSE (29) Idaho

Comments on the location information

  • Far Up Prominent Gulch Tributary To S Fork Of Yearian Creek

Commodities

Commodity Importance
Thorium Primary
REE Critical Tertiary

Comments on the commodity information

  • Best Exposure Of Radioactive Material In Lower And Larger Cut

Materials information

Materials Type of material
Monazite Ore
Thorite Ore
Xenotime Ore
Barite Gangue
Microcline Gangue
Quartz Gangue

Alteration

  • (Local) Oxidation
  • (Local) Sericite
  • (Local) Biotite
  • (Local) Phlogopite

Host and associated rocks

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

Nearby scientific data

(1) -113.5087, 44.86159

Economic information

Geologic structures

Type of structure Regional
Structure description Broad Se-Trending Laramide Thrust Zone

Ore body information

  • General form LENTICULAR
    Strike N 15 DEG W
    Dip NE
    Length 304.8M
    Width 4.57M
  • General form LENTICULAR
    Dip NE
  • General form LENTICULAR
    Dip NE
  • General form LENTICULAR
    Dip NE

Controls for ore emplacement

  • Fracture Zone
  • Breccia

Comments on the geologic information

  • Swauger Quartzite Beds Strike N 10-20 Deg W And Dip Steeply Ne
  • Original alteration entry:
    Local - Oxidation, Sericite, Biotite, Phlogopite
  • Original ore control entry:
    Breccia-Fracture Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Carroll Wells, Ann Lunden

Mining district

District name Mcdevitt District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Carroll Wells, Ann Lunden

Comments on the workings information

  • Several Large Bulldozer Cuts

Comments on development

  • Econ.Com: Gulch Slope Is Steep, Timbered, Deeply Mantled By Overburden.

Reference information

Bibliographic references

  • Deposit

    Anderson, A. L., 1961, Geology And Mineral Resources Of The Lemhi Quadrange, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 124, 111 P

  • Deposit

    Staatz, 1979, USGS Pp-1049-A.

  • Deposit

    V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Dubois Quad, Location No. 134, 139, 141 And 142.

General comments

Subject category Comment text
Deposit Author Anderson Believed Deposit Worth More Exploration (1961)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1974 Miller, Pat J. U.S. Geological Survey
Reporter 13-MAR-1995 Western Field Operations Center (WFOC) U.S. Bureau of Mines
Reporter 14-NOV-1983 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.