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West Fork of Illinois River

Occurrence in Josephine county in Oregon, United States with commodities Nickel, Cobalt, Chromium
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10033282
MRDS ID M015586
Record type Site
Current site name West Fork of Illinois River
Related records 10225422

Geographic coordinates

Geographic coordinates: -123.74893, 42.0526 (WGS84)

Site location context

Political divisions (FIPS codes)

Josephine(county)

Oregon(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

O'Brien(quadrangle 1:24,000 scale)

Grants Pass(quadrangle 1:100,000 scale)

Medford(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Illinois(hydrologic unit)

Southern Oregon Coastal(hydrologic accounting unit)

Oregon-Washington Coastal(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Rogue River-Siskiyou National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Oregon Josephine

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040S 009W 27 SE Oregon

Commodities

Commodity Importance
Nickel Critical Primary
Cobalt Critical Primary
Chromium Critical Primary

Alteration

  • (Local) Serpentinization

Analytical data

Result SOIL AND SAPROLITE CONTAIN AVERAGE OF 0.53 % NI, 0.04 % CO, AND 1.84 % CR2O3.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase

Nearby scientific data

(1) -123.74893, 42.0526
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Economic information

Geologic structures

Type of structure Local
Structure description Shear Zone - Fault Contact

Ore body information

  • Thickness 3.05M

Comments on the geologic information

  • AREA UNDERLAIN BY SERPENTINIZED HARZBURGITE OF JOSEPHINE ULTRAMAFIC SHEET IN FAULT CONTACT WITH UPPER JURASSIC GALICE FORMATION. FAULT IS VERTICAL AND STRIKES ABOUT N. 20 E. LATERITE IS REMNANT OF OLD UPLAND WEATHERED SURFACE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category
Area name Siskiyou National Forest

Reference information

Bibliographic references

  • Deposit

    RAMP, LEN, 1978 , INVESTIGATIONS OF NICKEL IN OREGON: ODGMI MISC. PAPER NO. 20 , P. 35 - 38

  • Deposit

    1968 DIREXPL COMINCO-AMERICAN, INC. TRENCHING AUGERING; MAPPING BY A REAL PHOTOGRAPHY.

  • Deposit

    1973 DIREXPL INSPIRATION DEVELOPMENT COMPANY EXTENSIVE EXPLORATION

  • Deposit

    1977 DIREXPL USBM BACKHOE SAMPLING

General comments

Subject category Comment text
Deposit ESTIMATED UNWEATHERED ROCK VOLUME IS 45 %

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Bradley, Robin (Walker, George W.) U.S. Geological Survey
Updater 01-AUG-1993 Gray, Jerry J. Oregon Department of Geology and Mineral Industries

Beyond USGS

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

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