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Chaney Winship-Doak, Winship-Donovan

Producer in Alameda 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. Ore body information
  11. Economic information about the deposit and operations
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10027966
MRDS ID M004661
Record type Site
Current site name Chaney Winship-Doak, Winship-Donovan
Related records 10284368

Geographic coordinates

Geographic coordinates: -121.59186, 37.60435 (WGS84)

Site location context

Political divisions (FIPS codes)

Alameda(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cedar Mountain(quadrangle 1:24,000 scale)

Stockton(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Joaquin Delta(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Alameda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004S 003E 12 California

Comments on the location information

  • LOCATED NE 1/4 OF SECTION 12

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Rhodochrosite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -121.59186, 37.60435
ListMap

Economic information

Ore body information

  • Strike N
    Dip 35 DEGREE E
    Depth to bottom 10.67M

Comments on the geologic information

  • GEOL.DESC: BED OF MANGANESE OXIDE IN WHITE CHERT; RANGING FROM 1 - 5 FT. AVE 2.5 FT. THICK. OXIDE ORE GRADES DOWNWARD INTO RHODOCHROSITE - NEOTOCITE ORE. SOME PLACES ORE NEARLY PURE COARSE GRAINED CARBONATE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Frank J. Rodriguez

Comments on the production information

  • IT IS REPORTED THAT 200 TONS OF ORE WAS SHIPPED FROM THIS MINE DURING WWI. THE CARBONATE ORE PROBABLY CONTAINS AT LEAST 35 % MANGANESE. THE PROSPECT LIES 2 MILES BY ROAD AND AN ADDITIONAL 2 MILES BY AN OLD WAGON ROAD FROM THE ARROYO MOCHO ROAD, 15 1/2 MILES FROM LIVERMORE. AT LEAST TWO THIN BEDS OF HIGH-GRADE RHODOCHROSITE ARE EXPOSED IN THE WORKINGS; THESE RANGE FROM 6 INCHES TO 1 FT. IN THICKNESS. IN SOME PLACES THE ORE IS NEARLY PURE, COARSE-GRAINED CARBONATE, BUT IN MOST PLACES IS A BANDED MISTURE OF RHODOCHROSITE AND NEOTOCITE

Comments on the workings information

  • INCLINED SHAFT 35 FT. DEPTH; 75 FT. BELOW SHAFT COLLAR A TUNNEL SAID TO BE 215 FT. LONG, AND IS SAID TO BE CONNECTED TO SHAFT BY A COMPLICATED SERIES OF WORKINGS

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 46, NO.2, APRIL, 1950, P.343, PL. 58

  • Deposit

    DOM BULL. 125, P.97

  • Deposit

    BULL. 152, P.18-19

  • Deposit

    BULL. 140 , PL. 1 (GEOLOGY)

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.