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Western Chrome Nos. 1, 3, 4

Occurrence in Trinity county in California, United States with commodities Chromium, Platinum, Palladium, Iridium, Ruthenium, Rhodium
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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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10043513
MRDS ID M100289
Record type Site
Current site name Western Chrome Nos. 1, 3, 4

Geographic coordinates

Geographic coordinates: -123.26639, 40.43429 (WGS84)
Elevation 1158
Relative position ABOUT 83 MI WEST OF REDDING

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Naufus Creek(quadrangle 1:24,000 scale)

Garberville(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Trinity(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Shasta-Trinity 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 California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 030N 012W 30,19 W2 (30) California

Comments on the location information

  • IN TRINITY NATIONAL FOREST. UTM GIVEN IS FOR PGE SAMPLE SITE LOCATION. LAT/LONG GIVEN IS FOR PROSPECT SYMBOL SHOWN ON TOPO MAP; UTM FOR THIS IS 4474920N, 477260E.

Commodities

Commodity Importance
Chromium Critical Primary
Platinum Critical Tertiary
Palladium Critical Tertiary
Iridium Critical Tertiary
Ruthenium Critical Tertiary
Rhodium Critical Tertiary

Materials information

Materials Type of material
Chromite Ore
Olivine Gangue

Alteration

  • (Local) Serpentinization Of Ultramafic Rocks

Analytical data

Result 2 PGE ANALYSES: PT=12, 545 PPB
Result PD=1, 110 PPB
Result IR=<20, 110 PPB
Result RU=<1, 250 PPB
Result RH=7, 33 PPB.

Mineral occurrence model information

Model code 15
USGS model code 8a
Deposit model name Podiform chromite (minor)
Mark3 model number none

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Nearby scientific data

(1) -123.26639, 40.43429
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Peridotite Bodies Strike Sw

Ore body information

  • General form MASSIVE LENSES

Controls for ore emplacement

  • Magmatic Segregation

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Indian Valley District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Benson, C. O.
    First year 1943

Reference information

Bibliographic references

  • Deposit

    WELLS, F.G., AND HAWKES, H.E., 1965, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 134, PT. 1, CH. 3, P. 174.

  • Deposit

    CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1982 Oster, Karel L. (Albers, John P.) U.S. Geological Survey
Updater 01-FEB-1990 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.