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  3. Mineral Resource Data System (MRDS)

Corkscrew

Occurrence in Inyo county in California, United States with commodity Boron-Borates
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Ownership information
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10023434
MRDS ID I000394
Record type Site
Current site name Corkscrew

Geographic coordinates

Geographic coordinates: -116.76588, 36.36581 (WGS84)

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Devils Golf Course(quadrangle 1:24,000 scale)

Death Valley Junction(quadrangle 1:100,000 scale)

Death Valley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Death Valley-Lower Amargosa(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Death Valley National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
026N 002E 21 California

Comments on the location information

  • IN CORKSCREW CANYON, ADJACENT TO FURNACE CREEK WASH.

Commodities

Commodity Importance
Boron-Borates Primary

Materials information

Materials Type of material
Colemanite Ore
Ulexite Ore
Calcite Gangue

Mineral occurrence model information

Model code 260
USGS model code 35b.3
Deposit model name Lacustrine borates

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Furnace Creek Formation
    Rock description Furnace Creek Formation

Nearby scientific data

(1) -116.76588, 36.36581
ListMap

Economic information

Ore body information

  • Length 548.64M
    Depth to top 0M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Land status

Ownership category
Area name Death Valley National Monument

Ownership information

  • Type Owner
    Owner U.S. Borax And Chemical Co.
    First year 1976

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Total resources 172000mt ore
    Commodity Subtype Grade units Group Importance Year
    Boron-Borates B2O3 31 wt-pct Boron Major 1976

Comments on the reserve resource information

  • 50% OF THESE RESERVES ARE CONSIDERED TO BE RECOVERABLE.

Reference information

Bibliographic references

  • Deposit

    EVANS, J.R., TAYLOR, G.C., AND RAPP, J.S., 1976, MINES AND MINERAL DEPOSITS IN DEATH VALLEY NATIONAL MONUMENT, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY SPECIAL REPORT 125, 61 P

  • Reserve-Resource

    ESTIMATE BY G. ORRIS BASED ON PUBLISHED DATA IN 1990.

  • Reserve-Resource

    EVANS AND OTHERS, 1976

General comments

Subject category Comment text
Deposit THE BORATE-BEARING ZONE IS ABOUT 1800 FT LONG. THE COLEMANITE IS MASSIVE AND CAVERNOUS. BASALT OCCURS IN FOOTWALL; TUFFACEOUS MUDSTONE AND SANDSTONE IN THE HANGING WALL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1990 Orris, Greta J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.