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  3. Mineral Resource Data System (MRDS)

Alameda Co. #39

Prospect in Alameda county in California, United States with commodities Manganese, Silica
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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. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10187039
MAS/MILS ID 0060010039
Record type Site
Current site name Alameda Co. #39

Geographic coordinates

Point of reference Trench
Geographic coordinates: -121.64133, 37.59771 (WGS84)
Elevation 512
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Alameda(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mendenhall Springs(quadrangle 1:24,000 scale)

Stockton(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 Alameda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 004 S 003 E 10 C W2SW California

Commodities

Commodity Importance
Manganese Critical Tertiary
Silica Tertiary

Materials information

Materials Type of material
Psilomelane Unknown
Pyrolusite Unknown
Quartz Unknown
Rhodonite Unknown

Nearby scientific data

Trench (1) -121.64133, 37.59771
ListMap

Economic information

Ore body information

  • Thickness 1M
    Length 15M
    Width 5M
    Depth to top 5M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 UNKNOWN
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin OXIDATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 1
    Avg. Thick. Unconsol. Mat. 4
    Min. Thick. Unconsol. Mat. 2
    Date of Last Modification 820823
  • Area 8HA
    Field Value
    Total Surface Area (HA) 8
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No

Mining district

District name Tesla

Mineral rights holdings

Type of mineral rights Fee Ownership
Type of mineral rights Located Claim

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner County Of Alameda
    Interest 100
    Home office California
    Year 1975

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEO. V. 46, NO.2, APR. 1950, P.345, PI.

  • Deposit

    DOM BULL. 125, P.101; BULL. 152, P.26; BULL. 140, PI. 1 (G

General comments

Subject category Comment text
Deposit NO OUTCROPS OF ORE OR ROCK IN PLACE OR IN SIGHT.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Deino, Al U.S. Bureau of Mines

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.