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  3. Mineral Resource Data System (MRDS)

Portneuf Reservoir Phosphate Property

Occurrence in Caribou county in Idaho, United States with commodity Phosphorus-Phosphates
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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. 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. Reporter information

Geologic information

Identification information

Deposit ID 10078044
MRDS ID W026177
MAS/MILS ID 0160290049
Record type Site
Current site name Portneuf Reservoir Phosphate Property

Geographic coordinates

Geographic coordinates: -111.93392, 42.93932 (WGS84)
Elevation 1951
Relative position 3 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

Chesterfield Reservoir(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Portneuf(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
Boise 005S 039E 31 SE 1/4 Idaho
Boise 006S 039E 06 C W2SE Idaho

Comments on the location information

  • Plotted In Section 31

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Analytical data

Result SECTION 31 SAMPLE GAVE 13.27 % P2O5 , 29.83 % CA3(PO4)2

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
    Rock description Phosphoria Formation-Phosphatic Shale, Chert;Wells Formation-Sandstone, Limestone
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -111.93392, 42.93932
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Graves Creek Syncline, Twenty Four Mile Anticline, Thrust Faults

Ore body information

  • General form IRREGULAR
    Thickness 1.52M
    Depth to bottom 1219.2M

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 Monsanto Co. ( 1966 )

Comments on development

  • 120 Acre Lease ( 1966 )

Reference information

Bibliographic references

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.

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