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Cummings Mine

Producer in San Joaquin 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10033550
MRDS ID M020143
Record type Site
Current site name Cummings Mine
Alternate or previous names Lone Tree, Section 13, Winship.
Related records 10262735

Geographic coordinates

Geographic coordinates: -121.48491, 37.58408 (WGS84)

Site location context

Political divisions (FIPS codes)

San Joaquin(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lone Tree Creek(quadrangle 1:24,000 scale)

Stockton(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 San Joaquin

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 004E 13 California

Comments on the location information

  • UTM APPROX

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Bementite Ore

Analytical data

Result ORE GRADE 20 TO 25 PERCENT MANGANESE

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
    Rock unit name Franciscan Complex
    Rock description Franciscan Complex
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -121.48491, 37.58408
ListMap

Economic information

Comments on the geologic information

  • ORE HOSTED IN FRANCISCAN COMPLEX--L. TO L. ; GEOL.DESC: STRATA CONTAINING ORE STRIKE N. W. AND DIP ABOUT 60 N. E. ORE IS IN 3 BEDS THROUGH A STRATIGRAPHIC THICKNESS OF 75 FT. THE BEDS ARE FAULTED AND CONSIST OF BEMENTITE, CARBONATE ORE, HIGH GRADE OXIDE AND DISSEMINATED OXIDE ORE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Large
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 PP. 221 - 222

  • Deposit

    D.O.M. BULL. 125 1943 P. 166

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1977 Killman, K.; 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.