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  3. Mineral Resource Data System (MRDS)

Eruption Claim

Occurrence in Custer county in South Dakota, United States with commodity Feldspar
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10095914
MRDS ID SD02477
Record type Site
Current site name Eruption Claim

Geographic coordinates

Geographic coordinates: -103.72529, 43.69746 (WGS84)
Elevation 146
Location accuracy 500(meters)
Relative position 6 MILES WEST OF CUSTER, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fourmile(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Angostura Reservoir(hydrologic unit)

Cheyenne(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Black Hills 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 South Dakota Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 004S 003E 01 SE South Dakota

Comments on the location information

  • 0.5 MILE SOUTH OF U.S. HIGHWAY 16

Commodities

Commodity Importance
Feldspar Primary

Materials information

Materials Type of material
Feldspar Ore
Amblygonite Gangue
Beryl Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) Madison Group
ListMap

Economic information

Ore body information

  • General form DIKE
    Strike NW
    Dip STEEPLY SW
    Length 91.44M
    Width 22.86M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner Tom Fenwich And W. Fink Estate, San Diego, California

Workings at the site

  • Type of workings Surface/Underground
    Area 0.001HA
    Overall depth 6.1M
    Overall length 3.05M
    Overall width 1.83M

Comments on the workings information

  • THE CUT IS 10 FT DEEP

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

  • Deposit

    ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1981 Barari, Rachel A. U.S. Geological Survey

Beyond USGS

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

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