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Black Bull Group Claims

Occurrence in Lemhi county in Idaho, United States with commodities Thorium, REE, Copper
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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. 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 10071947
MRDS ID W015730
Record type Site
Current site name Black Bull Group Claims
Alternate or previous names Black Bull No. 2 and No. 3 and Fraction Claims
Related records 10120683

Geographic coordinates

Geographic coordinates: -113.4773, 44.96989 (WGS84)
Elevation 1829
Relative position 11 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

Salmon-Challis National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 019N 025E 15 Idaho

Comments on the location information

  • ALONG N. SIDE OF AGENCY CREEK AT AND ABOVE ROAD TURNOFF TO COPPER QUEEN MINE

Commodities

Commodity Importance
Thorium Primary
REE Critical Primary
Copper Primary

Comments on the commodity information

  • BLACK BULL NO. 2 CU-TH VEIN HAD MAXIMUM 1 MR/HR AND UP TO 0.29% THO2; THIS VEIN IS 1 OF ONLY 2 SUCH VEINS IN THE LEMHI PASS AREA

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Covellite Ore
Monazite Ore
Rutile Ore
Thorite Ore
Apatite Gangue
Barite Gangue
Calcite Gangue
Chalcedony Gangue
Feldspar Gangue
Microcline Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Silicified Zone

Analytical data

Result 0.2 MR/HR, 0.04-0.80% THO2 IN ANALYZED SAMPLES
Result 1 6 FT SAMPLE OF MOST HIGHLY RADIOACTIVE PART OF VEIN AVG. 1.22% EQUIVALENT 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-Micaceous Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -113.4773, 44.96989
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Brecciation, Schistosity, Slickensides

Ore body information

  • General form IRREGULAR PATCHES
    Length 91.44M
    Width 30.48M

Controls for ore emplacement

  • Fracture Zone, Fault Breccia

Comments on the geologic information

  • DIKE IS ASSOCIATED WITH SILICIFIED ZONE AND TRENDS N 50-55 DEG E AND DIPS 51 DEG NW

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1952
Discoverer Peron, Bumgardner

Mining district

District name Mcdevitt District

Land status

Ownership category National Forest
Area name Salmon National Forest

Ownership information

  • Type Owner
    Owner Salmon Uranium And Thorium Co., Inc.

Comments on development

  • 4 CLAIMS IN GROUP

Reference information

Bibliographic references

  • Deposit

    ANDERSON, A. L., 1958 URANIUM, THORIUM, COLUMBIUM, AND RARE EARTH DEPOSITS IN THE SALMON REGION, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 115, 81 P.

  • Deposit

    SHARP, W. N., AND CAVENDAR, W. S., 1962, GEOLOGY AND THORIUM-BEARING DEPOSITS OF THE LEMHI PASS AREA, LEMHI COUNTY, IDAHO, AND BEAVERHEAD COUNTY, MONTANA: USGS BULL. 1126, 76 P.

  • Deposit

    STAATZ, M. H., 1972, GEOLOGY AND DESCRIPTION OF THE THORIUM-BEARING VEINS, LEMHI PASS QUADRANGLE, IDAHO AND MONTANA: USGS BULL 1351, 94 P.

  • Deposit

    ANDERSON, A. L., 1961, THORIUM MINERALIZATION IN THE LEMHI PASS AREA, LEMHI COUNTY, IDAHO: ECONOMIC GEOLOGY, V. 56, NO. 1, P. 177-197

  • Deposit

    1958 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 115

  • Deposit

    1962 RECON SHARP, W. N., AND CAVENDER, W. S., BULL. 1126

  • Deposit

    1972 GEOLMAP STAATZ, M. H., BULL. 1351

General comments

Subject category Comment text
Deposit FRACTION CLAIM RADIOACTIVE DEPOSIT DESCRIBED ABOVE; MAJOR CU-TH VEIN ON BLACK BULL NO. 2 CLAIM STRIKES N 70-80 DEG W, DIPS VERTICALLY, IS 2-4 INCHES WIDE, 300 FT LONG; BLACK BULL NO. 3 CLAIM HAS 2 VEINS, 1 IS 20 FT LONG, 1 FT THICK, TRENDS N 77 DEG W, AND DIPS 45 DEG SW, SECOND VEIN IS 15 FT LONG, 0.7 FT THICK, TRENDS N 62 DEG E AND DIPS 53 DEG NW

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

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