1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Oversight Mine

Past Producer in Esmeralda county in Nevada, United States with commodities Talc-Soapstone, Clay
Map
XML
JSON
KML
B
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046860
MRDS ID M242079
Record type Site
Current site name Oversight Mine
Alternate or previous names Crystal Butte No. 1, Oversight Claims

Geographic coordinates

Geographic coordinates: -117.74509, 37.41745 (WGS84)
Elevation 2155
Relative position 3.4 MILES BY ROAD SE OF THE DEAN MILL JUNCTION ON NEVADA HIGHWAY 3.

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sylvania Mountains(quadrangle 1:24,000 scale)

Last Chance Range(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fish Lake-Soda Spring Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management NV)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Nevada Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006S 038E 15 NE Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Talc-Soapstone Primary
Clay Primary

Comments on the commodity information

  • UNBROKEN ORE IS LT GREENISH GRAY, FINE-GRAINED, OFTEN MOTTLED, VARIABLE IN COMPOSITION FROM CHLORITE WITH MINOR TALC TO TALC WITH MINOR CHLORITE

Materials information

Materials Type of material
Chlorite Ore
Talc Ore
Calcite Gangue
Montmorillonite Gangue
Sericite Gangue
Tremolite Gangue

Alteration

  • (Local) Intense Hydrothermal Alteration

Analytical data

Result ORE SAMPLE IN 1942 (USBM) YIELDED 0.19% CAO
Result 2.76% FE2O3

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels
    Rock unit name Wyman;Sylvania Pluton
    Rock description Wyman;Sylvania Pluton
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Economic information

Geologic structures

Type of structure Local
Structure description Faults

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • E-W Fault Zones, Igneous Contact

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1939
Discoverer Located By W.E., Mac Boyle And Son M.D. Mac Boyle, And Sam Hain
Year of first production 1955
Year of last production 1957

Mining district

District name Sylvania (Green Mountain) District

Land status

Ownership category BLM Administrative Area

Comments on the production information

  • MINE IDLE SINCE LATE 1950'S.

Comments on the workings information

  • SEVERAL ADITS, SMALL PITS, OPEN PIT FROM WHICH PRODUCTION WAS MADE

Comments on development

  • EARLY EXPLORATION WAS BY ADITS AND PITS. NO SIGNIFICANT PRODUCTION UNTIL MID TO LATE 1950'S WHEN OWNERS AND A LESSEE PRODUCED 6000 TONS FROM AN OPEN PIT. MINE IDLE SINCE LATE 1950'S

Reference information

Bibliographic references

  • Deposit

    PAPKE, K.G., 1975, NBMG BULL. 84, P. 35

  • Production

    PAPKE, K.G., 1975, P. 35

General comments

Subject category Comment text
Deposit FAULT-BOUNDED ORE BODIES WITH SHARP CONTACTS USUALLY CONFORMABLE TO BEDDING. HANGING WALL ROCK IS MORE INTENSELY ALTERED THAN FOOTWALL ROCK

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1982 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

Beyond USGS

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

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.