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Capstone Deposit

Producer in Elko county in Nevada, United States with commodity Gold
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10055086
MRDS ID RE00026
Record type Site
Current site name Capstone Deposit

Geographic coordinates

Geographic coordinates: -116.41343, 41.0224 (WGS84)
Elevation 1695
Relative position 45 KM NW OF CARLIN, NV.

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Santa Renia Fields(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 36N 49E 10 Nevada

Comments on the location information

  • CAPSTONE DEPOSIT IS CONTIGUOUS WITH THE BOOTSTRAP DEPOSIT.

Commodities

Commodity Importance
Gold Primary

Alteration

  • (Local) Silicification And Argillization. Silicification Of Both Carbonate And Siliciclastic Sedimentary Rocks Predates Gold Mineralization. Late Stage Argillization Overprints Silicification Near Dikes And Structures And Is Associated With Gold Deposition.

Mineral occurrence model information

Model code 172
USGS model code 26a
Deposit model name Carbonate-hosted Au-Ag
Mark3 model number 15

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Devonian
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Mudstone

Nearby scientific data

(1) -116.41343, 41.0224
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Roberts Mountains Thrust Fault.
Type of structure Local
Structure description Multiple Fault Sets Are Recognized. North-Striking High Angle Normal Faults Are Offset By Nw- And Ne-Striking High Angle Normal Faults. E-W-Striking High Angle Faults Offset All Other Structures.

Controls for ore emplacement

  • Ore Is Localized At The Intersection Of N25w And N35e Fault Sets. These Faults Have Been Intruded In Places By Igneous Dikes. Thin Bedded Siliceous Sedimentary Rocks Immediately Above Massive Limestone Are A Less Important Stratigraphic Control.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1986
Discoverer Newmont Exploration Ltd., Elko, Nv
Year of first production 1992

Mining district

District name Carlin District; Bootstrap Subdistrict

Ownership information

  • Type Owner-Operator
    Owner Newmont Exploration, Ltd.
    Home office Elko, Nv

Reserves and resources

  • Type In-situ
    Estimate year 1989
    Total resources 6000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.609 g/mt Gold Major 1989

Comments on the reserve resource information

  • FIGURES REPRESENT TOTAL COMBINED RESERVES FOR BOTH CAPSTONE AND BOOTSTRAP DEPOSITS USING OVERALL STRIP RATIO OF 2.5:1.

Comments on development

  • THE CAPSTONE DEPOSIT WAS DISCOVERED BY EXPLORATION DRILLING CONDUCTED BY NEWMONT IN 1986 AS PART OF A PROGRAM DESIGNED TO EXPAND AND DEVELOP ADDITIONAL RESERVES FOR THE BOOTSTRAP MINE. ; ECON.COM: INITIAL PRODUCTION SCHEDULED FOR 1992.

Reference information

Bibliographic references

  • Deposit

    BAKER, E.D., 1991, GEOLOGY AND ORE DEPOSITS OF THE BOOTSTRAP SUBDISTRICT, ELKO COUNTY, NEVADA IN GEOLOGY AND ORE DEPOSITS OF THE GREAT BASIN, RAINES, G.L., ET AL, EDS., THE GEOLOGICAL SOCIETY OF NEVADA, RENO, P. 619-623.

  • Deposit

    NBMG, 1991, THE NEVADA MINERAL INDUSTRY 1990, NBMG SPECIAL PUBLICATION MI-1990, P. 19.

General comments

Subject category Comment text
Deposit First Production Year: SCHED. FOR 1992

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1991 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.