Questa Prospect

Occurrence in San Luis Obispo county in California, United States with commodities Chromium, Platinum, Palladium, Iridium, Ruthenium, Rhodium
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. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10048475
MRDS ID MP00062
Record type Site
Current site name Questa Prospect

Geographic coordinates

Geographic coordinates: -120.66125, 35.36497 (WGS84)
Elevation 732
Relative position ABOUT 6 MI NORTH OF SAN LUIS OBISPO

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Luis Obispo(quadrangle 1:24,000 scale)

San Luis Obispo(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salinas(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Los Padres 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 San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029S 012E 35 NEAR CENTER OF NW4 California

Comments on the location information

  • IN CUESTA RIDGE BOTANICAL AREA OF LOS PADRES NATIONAL FOREST. UTM LOCATION GIVEN IS FOR PGE SAMPLE SITE LOCATION. LAT/LONG LOCATION GIVEN IS FOR NEARBY MINE SYMBOL SHOWN ON TOPO MAP; UTM 3915840N, 712560E.

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=20, 80 PPB
Result PD=<1, 4 PPB
Result IR=37, 124 PPB
Result RU=<100, 270 PPB
Result RH=1, 26 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
    Rock unit name Coast Range Ophiolite
    Rock description Coast Range 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) -120.66125, 35.36497

Economic information

Ore body information

  • General form UNKNOWN

Controls for ore emplacement

  • Magmatic Segregation

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest

Reference information

General comments

Subject category Comment text
Deposit NO INFORMATION FOUND OTHER THAN PGE ANALYSES IN CARLSON AND OTHERS, 1985. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1990 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Authoritative California resources

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