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Jones

Prospect in Amador county in California, United States with commodity Manganese
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10028330
MRDS ID M005235
Record type Site
Current site name Jones
Related records 10260022

Geographic coordinates

Geographic coordinates: -120.67351, 38.42046 (WGS84)
Relative position THE PROSPECT IS ON TOP OF A HILL 0.3 MILES SOUTH OF JONES RANCH WHICH IS 1 MILE WEST OF PINE GROVE ALONG THE ROAD TO SUTTER SPRINGS

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pine Grove(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007N 012E 32 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore
Rhodonite Ore

Nearby scientific data

(1) -120.67351, 38.42046
ListMap

Economic information

Ore body information

  • Strike E
    Dip 70 DEG N
    Thickness 0.91M
    Length 7.62M
    Width 15.24M

Comments on the geologic information

  • GEOL.DESC: MASSIVE, MANGANIFEROUS META-CHERT; ORE IS CHIEFLY BOTRYOIDAL AND NODULAR PSILOMELANE WITH SOME PYROLUSITE. THE MASSIVE METACHERT IS ENCLOSED IN RHYTHMICALLY BEDDED METACHERTS; BEDS 1 IN TO 3 FT. THICK; SEPARATED BY ORIGINAL SHALY PARTINGS; AT LEAST 50' WIDE.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner D. C. Stowe

Comments on the production information

  • DEVELOPED DURING WWI - SOME ORE WAS PILED ON THE DUMPS BUT NONE WAS SHIPPED. FIVE OR TEN TONS ON THE DUMP SHOULD RUN OVER 40 PERCENT MANGANESE. MR. L. W. JONES, FORMER OWNER AND DEVELOPER OF THE PROPERTY, STATES THAT ASSAYS OF SAMPLES TAKEN DURING WWI RAN 48 PERCENT MANGANESE AND 6 PERCENT SILICA.

Comments on the workings information

  • SHAFT 30 FT. DEEP FROM WHICH AN OPEN CUT 20 FT. LONG RUNS S. 35 DEG. E. A DRIFT. 4 FT. WIDE AND 12 FT. LONG HAS BEEN RUN TOWARD THE WEST FROM THE SHAFT

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P. 268

  • Deposit

    DOM BULL. 152, P. 30-31

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-APR-1977 Von Dohlen, E.; 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.