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Emma Deposit

Occurrence in Placer 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. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10033503
MRDS ID M020074
Record type Site
Current site name Emma Deposit
Related records 10237477

Geographic coordinates

Geographic coordinates: -120.85825, 39.03545 (WGS84)
Relative position 12 MI. S. E. OF COLFAX

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Foresthill(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 014N 010E 28 California

Comments on the location information

  • LOCATED IN N 1/2 SECTION 28 , UTM APPROX.

Commodities

Commodity Importance
Manganese Critical Tertiary

Nearby scientific data

(1) -120.85825, 39.03545
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: TYPICAL SMALL DEPOSIT OF CENTRAL SIERRA NEVADA TYPE. AVERAGE ORE GRADE IS 40 PERCENT MANGANESE, 10 PERCENT IRON AND 20 PERCENT SILICA

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    TRASK, PARKER, NOTES ON THE MANGANESE RESOURCES OF CALIF., 1944 , UNPUBLISHED

  • Deposit

    D.O.M. BULL. 152 1950 P. 168

  • Deposit

    D.O.M. BULL. 125 1943 P. 149

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1977 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.