Phosphate Deposit

Occurrence in Caribou county in Idaho, United States with commodity Phosphorus-Phosphates
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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10078022
MRDS ID W026137
MAS/MILS ID 0160290084
Record type Site
Current site name Phosphate Deposit

Geographic coordinates

Geographic coordinates: -111.40861, 42.93852 (WGS84)
Elevation 2316
Relative position 6 MI E OF BLACKFOOT RIVER RESERVOIR

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Wayan West(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Willow(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Caribou-Targhee 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 Caribou

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 005S 043E 29,30,33,35,34 NESW (34) Idaho

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Analytical data

Result AVG. OF 70 % CA3(PO4)2 INFERRED FROM ADJOINING TOWNSHIPS
Result 74 SAMPLES OF STRATIGRAPHIC SECTION GAVE MAX. 37.2 % P2O5 ( SECTION 34 )

Host and associated rocks

  • Host or associated Associated
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Thaynes Formation-Sandstone;Thaynes Formation-Limestone;Thaynes Formation-Shale;Dinwoody Formation-Shale;Dinwoody Formation-Limestone;Nugget Sandstone-Sandstone;Nugget Sandstone-Limestone
    Rock description Thaynes Formation-Sandstone;Thaynes Formation-Limestone;Thaynes Formation-Shale;Dinwoody Formation-Shale;Dinwoody Formation-Limestone;Nugget Sandstone-Sandstone;Nugget Sandstone-Limestone
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Phosphoria Formation-Phosphatic Shale, Chert, Sandstone;;;
    Rock description Phosphoria Formation-Phosphatic Shale, Chert, Sandstone;;;

Nearby scientific data

(1) -111.40861, 42.93852

Economic information

Geologic structures

Type of structure Regional
Structure description Thrust Faults, Williamsburg And Lanes Butte Synclines, Little Gray Anticline, Meadow Creek Graben

Ore body information

  • General form IRREGULAR
    Strike N 50 DEG W
    Dip 45 DEG S
    Thickness 1.83M
    Depth to bottom 1524M

Controls for ore emplacement

  • Structure

Economic information about the deposit and operations

Operation type Surface
Development status Occurrence
Commodity type Non-metallic
Deposit size Medium
Significant No

Mining district

District name Blackfoot River Reservoir Area

Land status

Ownership category National Forest
Area name Caribou National Forest

Comments on the workings information

  • 1 Trench ( Section 34 )

Reference information

General comments

Subject category Comment text
Deposit 112.2 Ft Thickness Of Phosphatic Shale Member ( Section 34 ); 4880 Acre Area Held As Phosphate Land ( 1927 )

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 15-MAY-1992 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.