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Pennsylvania

Producer in Santa Clara 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. Land status
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10111042
MRDS ID W025101
Record type Site
Current site name Pennsylvania
Related records 10213737

Geographic coordinates

Geographic coordinates: -121.48685, 37.33436 (WGS84)
Elevation 707
Relative position SW SIDE OF SAN ANTONIO VALLEY, ON THE ROAD LEADING W. TO MOUNT HAMILTON FROM THE JUNCTION BETWEEN THE ARROYO MOCHO ROAD,RUNNING S. FROM LIVERMORE, AND THE ROAD RUNNING W. FROM PATTERSON, 30 MI. BY ROAD FROM PATTERSON.

Site location context

Political divisions (FIPS codes)

Santa Clara(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Stakes(quadrangle 1:24,000 scale)

San Jose(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco Bay(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Santa Clara

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007S 004E 12 California

Comments on the location information

  • LOCATED IN S 1/2 SECTION 12 , UTM APPROX

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Bementite Ore
Rhodochrosite Ore

Analytical data

Result AVERAGE GRADE 25 PERCENT MANGANESE

Host and associated rocks

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

Nearby scientific data

(1) -121.48685, 37.33436
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: ORE BODY IS THICK STUMPY LENS ENCLOSED IN THICK-BEDDED WHITE TO BUFF CHERT. MAIN LENS IS 30 FT. LONG, WITH 6 FT. MAXIMUM THICKNESS, STRIKING N 15 W, AND DIPPING 60 S.W. CHERT IS IN FAULT. CONTACT WITH FRANCISCAN SANDSTONE. VERY LITTLE MANGANESE OXIDE IS PRESENT IN MAIN ORE BODY, MAINLY ALONG SEAMS AND CRACKS. ORE IS MAINLY BROWN BEMENTITE, SOME RHODOCHROSITE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEO. V. 50, NO.2, APR. 1954, P.415.

  • Deposit

    D.O.M. BULL. 152 1950 P. 258

  • Deposit

    TRASK, PARKER, NOTES ON THE MANGANESE RESOURCES OF CALIF, 1944 , UNPUB.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 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.