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West Sinter Deposit

Producer in Eureka county in Nevada, United States with commodities Gold, Silver
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Ownership information
  18. Production statistics
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10055081
MRDS ID RE00019
Record type Site
Current site name West Sinter Deposit

Geographic coordinates

Geographic coordinates: -116.48148, 40.21713 (WGS84)
Elevation 2103
Location accuracy 100(meters)
Relative position 3.2 KM NNE OF THE NORTH BUCKHORN PIT, Accurate (Utm's Calculated By Cominco)

Site location context

Political divisions (FIPS codes)

Eureka(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Buckhorn Mine(quadrangle 1:24,000 scale)

Crescent Valley(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pine(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(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 Eureka

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 27N 49E Nevada

Comments on the location information

  • APPROX. 145 KM BY ROAD SOUTHWEST OF CARLIN, NV ON THE SOUTHEASTERN SLOPE OF THE CORTEZ MTNS.

Commodities

Commodity Importance
Gold Primary
Silver Primary

Comments on the commodity information

  • AG:AU RATIO OF 1:1

Materials information

Materials Type of material
Alunite Gangue
Cristobalite Gangue

Alteration

  • (Local) Pervasive Cristobalite-Alunite Associated With Smectite Is Thought To Result From Acid Leaching Of The Deposit During The Last Stages Of Hydrothermal Activity. Lesser Silicification And Possible Decalcification Of Host Rocks.

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone > Claystone

Nearby scientific data

(1) -116.48148, 40.21713
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Two Fault Sets Define Local Structure. An Older Set Of Nnw-Striking Normal Faults Are Downthrown On The West. This Fault Set Appears To Be A Primary Control Of Gold Deposition. A Younger Ene-Striking Range Front Fault Set (E.G. Crescent Fault) Offsets The Older Set And Serves To Localize Mineralization At Structural Intersections.

Ore body information

  • Strike N15W
    Dip STEEP TO WEST

Controls for ore emplacement

  • A Breccia Pipe 30-60 Meters In Diameter Is Developed Below The Ore Zone Sub-Parallel To West Sinter Fault. The Pipe Hosts High-Grade Gold Mineralization And Appears To Be A Primary Conduit For Mineralizing Fluids.

Comments on the geologic information

  • SEDIMENTARY HOST ROCKS ARE PRESUMED TO CORRELATE TO A NEARBY OUTCROPPING LACUSTRINE SEQUENCE. AT WEST SINTER, THESE SEDIMENTS ARE UP TO 25 METERS THICK.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1985
Discoverer Cominco American Resources, Inc.
Year of first production 1988
Year of last production 1989
Production years 1988-1989

Mining district

District name Buckhorn

Ownership information

  • Type Operator
    Owner Cominco American Resources, Inc.
  • Type Owner
    Owner Cominco American Resources, Inc./Equinox Resources Ltd. Joint Venture

Production statistics

  • Year 1989
    Period 1988-1989
    Material ORE AU
    Accuracy Estimate
    Description Cp_Grade: ^0.073 Opt Gold
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 2g/mt

Comments on the production information

  • MINED AT A 1:1 STRIPPING RATIO.

Comments on development

  • IN 1985, GEOLOGIC MAPPING AND LIMITED SOIL GEOCHEMISTRY NNE OF NORTH BUCKHORN PIT LED TO DISCOVERY OF FOSSIL HOT SPRING SYSTEM. IN AUGUST 1985, DRILL HOLE D-13 INTERSECTED WEST SINTER GOLD DEPOSIT DIRECTLY BENEATH A CAP OF SILICEOUS SINTER AND SILICIFIED CLASTIC ROCKS.

Reference information

Bibliographic references

  • Deposit

    JENNINGS, S., 1991, GEOLOGY OF THE WEST SINTER DEPOSIT AT THE BUCKHORN MINE, EUREKA COUNTY, NEVADA, IN GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, SYMPOSIUM PROCEEDINGS, RAINES, G.L., ET AL, EDS., THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 947-956

  • Production

    JENNINGS, S., 1991, GEOLOGY OF THE WEST SINTER DEPOSIT AT THE BUCKHORN MINE, EUREKA COUNTY, NEVADA, IN GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, SYMPOSIUM PROCEEDINGS, RAINES, G.L., ET AL, EDS., THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 947-956.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-91 Phinisey, J. D. (Marcus, S.) 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 Nevada resources

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