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  3. Mineral Resource Data System (MRDS)

Schober and Merrill

Past Producer in Inyo county in California, United States with commodity Tungsten
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10008564
MRDS ID D000868
Record type Site
Current site name Schober and Merrill
Related records 10163253, 10235971

Geographic coordinates

Geographic coordinates: -118.53427, 37.23327 (WGS84)
Elevation 3048

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Thompson(quadrangle 1:24,000 scale)

Bishop(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Crowley Lake(hydrologic unit)

Mono-Owens Lakes(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Inyo National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008S 031E 22 California

Comments on the location information

  • NE 1/4, UTM EST

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Pyrrhotite Ore
Scheelite Ore
Calcite Gangue
Epidote Gangue
Garnet Gangue
Quartz Gangue

Analytical data

Result AVG. 1.5% WO3

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels

Nearby scientific data

(1) -118.53427, 37.23327
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Numerous Faults

Ore body information

  • General form TABULAR

Comments on the geologic information

  • GEOL.DESC: SURFACE IS MANTLED WITH SAND AND SOIL, OUTCROP OF ORE ONLY A FEW FEET IN DIAMETER. INCLUSION PROBABLY CAPPED BY GRANITE, ITS DIMENSIONS INCREASE DOWNWARD.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1941-1943

Land status

Ownership category National Forest

Comments on the production information

  • 107,000 TONS ORE

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 42.67M

Comments on the workings information

  • OPEN PIT 85 FT. WIDE, 110 FT. LONG AND 45 FT. DEEP INCLINED SHAFT SUNK 140 FT. BENEATH PIT, 150 FT. OF WORKING AT 65 FT. LEVEL

Reference information

Bibliographic references

  • Deposit

    LEMMONS, D.M.; TUNGSTEN DEPOSITS IN THE US, VOL. ; UNPUBLISHED DATA, P. 222-224.

  • Deposit

    LEMMONS, D.M. AND TWETO, O.L., 1962; TUNGSTEN IN THE US; USGS MAP, MR-25.

  • Production

    LEMMON

General comments

Subject category Comment text
Deposit MASSES OF SCHEELITE UP TO 6 INCHES OR MORE IN SIZE.
Deposit OPEN PIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1974 Elliott, James E. U.S. Geological Survey
Updater 01-APR-1979 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 09-JUN-1995 Mosier, Dan 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.