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Carla

Past Producer in Del Norte 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10029727
MRDS ID M007475
Record type Site
Current site name Carla
Related records 10260187

Geographic coordinates

Geographic coordinates: -123.96115, 41.70676 (WGS84)
Elevation 701
Relative position ABOUT 3 MI NORTHWEST OF BIG FLAT CAMPGROUND

Site location context

Political divisions (FIPS codes)

Del Norte(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Canthook Mountain(quadrangle 1:24,000 scale)

Happy Camp(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Smith(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Six Rivers 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 Del Norte

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 015N 002E 09 NW4 OF SW4 California

Comments on the location information

  • IN SIX RIVERS NATIONAL FOREST. UTM LOCATION GIVEN IS FOR PGE SAMPLE SITE LOCATION. LAT/LONG GIVEN ARE FOR PROSPECT SHOWN ON TOPO SHEET; UTM COORDINATES 4617500N, 420100E

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

Analytical data

Result 2 PGE ANALYSES: PT=18, <10 PPB
Result PD=13, 1 PPB
Result IR=40, 48 PPB
Result RU=<100, 130 PPB
Result RH=3, 5 PPB. AVE CR2O3 IS 42%. CR:FE=2.2-2.8.

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
    Rock unit name Josephine Ophiolite
    Rock description Josephine Ophiolite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite

Nearby scientific data

(1) -123.96115, 41.70676
ListMap

Economic information

Ore body information

  • General form UNKNOWN
    Depth to top 0M

Controls for ore emplacement

  • Magmatic Segregation

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1944
Discoverer C. Stevens, J. Wilson

Mining district

District name Smith River Area

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner C. Stevens, J. Wilson
    First year 1946

Production statistics

  • Year 1944
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^38-45% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Chromium Chromium 42g/mt

Reference information

Bibliographic references

  • Deposit

    WELLS, F.G., CATER, F.W., JR., AND RYNEARSON, G.A., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 134, PT. 1, CH. 1, P. 67, PL. 1

  • 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.

  • Deposit

    O'BRIEN, J.C., 1952, MINES AND MINERAL RESOURCES OF DEL NORTE COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY V. 48, NO. 4, P. 286.

General comments

Subject category Comment text
Deposit LITTLE DESCRIPTIVE INFORMATION AVAILABLE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.