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Volunteer Group

Past Producer in Imperial county in California, United States with commodities Copper, Gold, Silver
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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. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10103012
MRDS ID M021020
Record type Site
Current site name Volunteer Group
Related records 10212179

Geographic coordinates

Geographic coordinates: -114.94052, 33.11285 (WGS84)
Relative position 10 MILES EAST OF GLAMIS

Site location context

Political divisions (FIPS codes)

Imperial(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ninemile Wash(quadrangle 1:24,000 scale)

Trigo Mountains(quadrangle 1:100,000 scale)

Salton Sea(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Salton Sea(hydrologic accounting unit)

Southern Mojave-Salton Sea(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Imperial

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 012S 020E 23 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Malachite Ore

Analytical data

Result 2 % - 10 % CU, $5 IN AU AND AG

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -114.94052, 33.11285
ListMap

Economic information

Ore body information

  • Strike NORTH
    Dip 80 EAST
    Width 3.05M

Controls for ore emplacement

  • Fractures, Shear Zones

Comments on the geologic information

  • GEOL.DESC: OBLONG NW TRENDING BODY OF QTZ. MONZONITE ABOUT 1000 FT. WIDE AND 2600 FT. LONG. SEVERAL NARROW ELONGATE APLITE DIKES CUT THE QTZ. MONZ. IN MINE AREA.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Paymaster

Comments on the production information

  • NO PRODUCTION REPORTED

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 21.34M

Comments on the workings information

  • ONE PROSPECT HOLE, SEVERAL SMALL SHAFTS 10 FT. IN DEPTH, MAIN SHAFT IS 70 FT. DEEP ON FRACTURE IN MONZONITE WHICH STRIKES NORTH AND DIPS 70E. SEVERAL PITS AND CUTS.

Reference information

Bibliographic references

  • Deposit

    ERIC, T. H., 1948 ; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 237 .

  • Deposit

    MORTON, P. K., 1977 , GEOLOGY AND MINERAL RESOURCES OF IMPERIAL COUNTY, CALIFORNIA, COUNTY REPORT 7 ; CALIFORNIA DIVISION OF MINES AND GEOLOGY, P. 38

  • Deposit

    SAMPSON, R. J. AND TUCKER, W. B., 1942 ; MINERAL RESOURCES OF IMPERIAL COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 38 , NO. 2 ; DIV. OF MINES, P. 112

General comments

Subject category Comment text
Deposit MINERALIZATION OCCURS IN A FEW SHORT, NARROW PARALLEL SHEAR ZONES, PRINCIPAL ZONE IS 8 - 10 FT. WIDE, AND CAN BE TRACED FOR SEVERAL TENS OF FEET.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Fraticelli, L. A. (Albers, 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.