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Alexander

Occurrence in Amador 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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10095063
MRDS ID M005160
Record type Site
Current site name Alexander
Related records 10187140

Geographic coordinates

Geographic coordinates: -120.78991, 38.43129 (WGS84)
Relative position 2.6 MI. BY ROAD E OF AMADOR CITY

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Amador City(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007N 011E 29 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Analytical data

Result ORE GRADE IS 10 TO 35 % MANGANESE

Nearby scientific data

(1) -120.78991, 38.43129
ListMap

Economic information

Ore body information

  • Strike N 50 W
    Dip 70 NE

Comments on the geologic information

  • GEOL.DESC: EXPOSURES OF BANDED SLATY META-CHERT WITH BANDS AND IRREGULAR PATCHES OF MANGANESE AND IRON OXIDES. THE META-CHERT AT ONE OF THE EXPOSURES STRIKES N 50 W, DIPPING 70 NE. THE META-CHERT IS ENCLOSED IN CALAVERAS SCHIST. ORE GRADE IS 10 TO 35 % MANGANESE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Darrow A. Russell, Et Al

Comments on the production information

  • ASSAYS OF 19, 25, AND 39 PERCENT MANGANESE WERE QUOTED FROM THE LOWER ZONE. ALL OF THE MATERIAL IS TOO LOW IN MANGANESE AND TOO HIGH IN IRON TO BE OF SHIPPING GRADE. USGS QUAD SUTTER CREEK 1962, SHOWS UNIDENTIFIED SHAFT IN SW COR. OF THIS SEC. - HOWEVER, IT WOULD SEEM NOT TO BE THE LOCATION OF THIS MINE IF GEOGRAPHIC DESCRIPTION ABOVE IS CORRECT.

Comments on the workings information

  • TWO OPEN CUTS

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P. 268

  • Deposit

    DOM BULL. 152, P. 27

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.