1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Man Ridge

Producer in Alameda county in California, United States with commodity Manganese
Map
XML
JSON
KML
C
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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10109102
MRDS ID M004925
Record type Site
Current site name Man Ridge
Alternate or previous names Elliott, Noble and Searles Lease, Scott and Winegar Properties
Related records 10162713

Geographic coordinates

Geographic coordinates: -121.57796, 37.51213 (WGS84)
Relative position S. SIDE OF MAN RIDGE. LOCATED HALF A MILE BY TRAILS AND 4 MILES BY ROAD FROM THE ARROYO MOCHO ROAD, AND 26 MILES SOUTH OF LIVERMORE. TWO CLAIMS

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 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 005S 004E 07 California

Commodities

Commodity Importance
Manganese Critical Primary

Analytical data

Result ORE 10 TO 45 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) -121.57796, 37.51213
ListMap

Economic information

Ore body information

  • Strike N 15 - 45 E
    Dip 15 - 25 NW
    Thickness 1.22M
    Length 10.67M

Comments on the geologic information

  • ORE HOSTED IN FRANCISCAN COMPLEX--L. TO L. ; GEOL.DESC: BEDS OF SILICEOUS MANGANESE ORE ENCLOSED IN SHALELY CHERT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Phil Winegar And Arthur Most
    First year 1942

Comments on the production information

  • NOBLE ELEC. STEEL CO.PRODUCED 600 TONS OF ORE FROM SE WORKINGS IN 1917; ELLIOTT AND SEARLES PRODUCED 350 TONS IN 1917 FROM THE NW WORKINGS. MR. WINEGAR WAS WORKING THE PROPERTY IN 1942

Comments on the workings information

  • OPEN CUTS, SHORT ADITS - PLANS FOR STRIPPING UNDER WAY IN 1942

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 46, NO. 2, P.340, PL. 58

  • Deposit

    DOM BULL. 152, P.23

  • Deposit

    BULL. 125, P.100

General comments

Subject category Comment text
Deposit ADD. REF. NO.4. BULL. 140, P.66, PL. 1; NO.5. 25 TH REPORT OF STATE MINERALOGIST, P.437; NO.6. BULL. 76, P.28; NO.7. USBM RI 5579, P.21

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-JAN-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.