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Collecting Site

Past Producer in Los Angeles county in California, United States with commodities Semiprecious Gemstone, Quartz
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10065252
MRDS ID TC40363
Record type Site
Current site name Collecting Site

Geographic coordinates

Geographic coordinates: -118.2534, 34.4864 (WGS84)
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Los Angeles(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Agua Dulce(quadrangle 1:24,000 scale)

Los Angeles(quadrangle 1:100,000 scale)

Los Angeles(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Clara(hydrologic unit)

Ventura-San Gabriel Coastal(hydrologic accounting unit)

Southern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Los Angeles

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 005N 013W 28 California

Comments on the location information

  • UPPER SANTA MARGARITA CANYON.

Commodities

Commodity Importance
Semiprecious Gemstone Primary
Quartz Primary

Materials information

Materials Type of material
Chalcedony Ore
Opal Ore

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Rock unit name Vasquez Formation
    Rock description Vasquez Formation
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -118.2534, 34.4864
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Kashmere Fault

Comments on the geologic information

  • BASALT IS DARK, FINE-GRAINED, AND VESICULAR AND AMYGDALOIDAL. OAKESHOTT DESCRIBES BASALT IN GREATER DETAIL.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Comments on the production information

  • INACTIVE LITTLE DEVELOPED PRODUCER.

Reference information

Bibliographic references

  • Deposit

    OAKESHOTT, G.B., 1958, GEOLOGY AND MINERAL DEPOSITS OF SAN FERNANDO QUADRANGLE, LOS ANGELES COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 172, 147 P

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1993 Orris, Greta J. 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.