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  3. Mineral Resource Data System (MRDS)

Crocker - Winship

Occurrence in Stanislaus county in California, United States with commodity Mercury
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10040864
MRDS ID M055740
Record type Site
Current site name Crocker - Winship
Related records 10263017

Geographic coordinates

Geographic coordinates: -121.46241, 37.45742 (WGS84)

Site location context

Political divisions (FIPS codes)

Stanislaus(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Boardman(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Panoche-San Luis Reservoir(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Stanislaus

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 005S 005E 31 California

Comments on the location information

  • LOCATED TO CENTER OF SECTION

Commodities

Commodity Importance
Mercury Primary

Nearby scientific data

(1) -121.46241, 37.45742
ListMap

Economic information

Comments on the geologic information

  • FRANCISCAN ROCKS INCLUDE SHALES, SANDSTONES, CHERTS, CGL, AND GREENSTONE PLUS SERPENTINE THAT HAS BEEN ALTERED IN PLACES TO SILICA - CARBONATE ROCK. THE OVERLYING CRET ROCKS ARE SIMILAR TO THE FRANCISCAN SEDIMENTS BUT NOT AS BADLY CRUSHED. THE TERT BASALTS COVER OVER HALF OF THE DISTRICT AND HAVE BEEN HYDROTHERMALLY ALTERED WHERE THE ANDESITES HAVE INTRUDED IT. THE ANDESITIC EXTRUSIVE IS PREDOMINANTLY AGGLOMERATIC ALTHOUGH TUFFS AND FLOWS ALSO OCCUR. SEVERAL ANDESITIC INTRUSIVES HAVE BEEN MAPPED IN THE AREA. TWO RHYOLITE PLUGS HAVE BEEN MAPPED. FAULTS WITHIN THE DISTRICT TREND N TO NW. MOST OF THE MINERALIZED FAULTS ARE LESS THAN 2 MI LONG. THE ANTIMONY DEPOSITS ARE CINNABAR BEARING QUARTZ VEINS ON N TRENDING FAULTS IN THE BASALT, USUALLY WITH KAOLINIZED ROCKS. MERCURY MINERALIZATION IS ALSO FAULT CONTROLLED. IT IS LATER THAN AND MAY OR MAY NOT BE RELATED SPATIALLY TO THE STIBNITE. NO GENETIC CONNECTION CAN BE MADE BETWEEN THE VISIBLE VOLCANICS AND MINERALIZATION.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Del Puerto - Orestimba

Reference information

Bibliographic references

  • Deposit

    HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

  • Deposit

    BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

  • Deposit

    CHARLES, A., 1947, MINES AND MINERAL RESOURCES OF STANISLAUS COUNTY, CALIF.: CJMG, V. 43, P. 96-98

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 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.