Graves Creek Phosphate Property

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. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10089429
MRDS ID W026176
MAS/MILS ID 0160290057
Record type Site
Current site name Graves Creek Phosphate Property

Geographic coordinates

Geographic coordinates: -111.85892, 42.93522 (WGS84)
Elevation 2012
Relative position 6 MI NE OF PORTNEUF RESERVOIR

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Grizzly Creek(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Idaho Caribou

Public Land Survey System information

Meridian Township Range Section Fraction State
006S 039E 01,02,12 Idaho
Boise 005S 039E 35,34,28 Idaho

Comments on the location information

  • Sections 21 And 27 , T 5 S, R 39 E Are Also Included In Graves Creek Lease; Also, Sections 24 , 25 , 30 , 31 , T 5 S, R 39 E Are Considered By Mansfield, ( 1929 ) In His Estimate Of Phosphate Land Acreage; Deposit Plotted T 5 S, R 39 E, Section 35

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Analytical data

Result FLOAT FRAGMENTS IN SECTIONS 34 AND 35 GAVE 37.10 AND 36.87 % P2O5

Host and associated rocks

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

Nearby scientific data

(1) -111.85892, 42.93522

Economic information

Geologic structures

Type of structure Regional
Structure description Graves Creek Syncline, Twenty Four Mile Anticline, Thrust And Block Faults Of Bannock Thrust Zone

Ore body information

  • General form IRREGULAR
    Dip 50 DEG W
    Thickness 1.68M
    Width 243.84M
    Depth to bottom 1371.6M

Controls for ore emplacement

  • Structure

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Portneuf Reservoir Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner J. R. Simplot Co.
    First year 1966

Comments on the reserve resource information

  • Above Est. For Phosphate In T 5s , R 39 E; Also Assumes Beds Horizontal

Comments on development

  • 1760 Acre Lease ( 1966 )

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 1400 Acres In T 5 S, R 39 E Considered By Mansfield, ( 1929 ) To Be Phosphate Land

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 30-JAN-1995 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.