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  3. Mineral Resource Data System (MRDS)

Republican Mine

Prospect in Pershing 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. Land status
  18. Ownership information
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10047275
MRDS ID M242552
Record type Site
Current site name Republican Mine
Alternate or previous names NBMG Sample Site 2640

Geographic coordinates

Geographic coordinates: -118.14792, 40.85017 (WGS84)
Elevation 1720

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Woody Canyon(quadrangle 1:24,000 scale)

Eugene Mountains(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Humboldt(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 Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 034N 034E 03 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Hematite Gangue
Quartz Gangue

Alteration

  • (Local) Kaolinization Of Wall Rock

Analytical data

Result SAMPLE 2640 OF FE-OXIDE-STAINED, KAOLINIZED GRANODIORITE WITH MINOR VEIN QUARTZ AND HEMATITE CLOTS CONTAINS 10% FE, 0.7% MG, 0.5% CA, 0.5% TI, 1500 PPM MN, 30 PPM AG, 5000 PPM AS, 200 PPM B, 700 PPM BA, 2 PPM BE, 30 PPM CO, 15 PPM CR, 70 PPM CU, 10 PPM NI, 5000 PPM PB, 15 PPM SC, 200 PPM SR, 200 PPM V, 15 PPM Y, 500 PPM ZN, 100 PPM AR. AA ANALYSIS SHOWS 1.6 PPM AU, ALSO.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Auld Lang Syne Group
    Rock description Auld Lang Syne Group

Nearby scientific data

(1) -118.14792, 40.85017
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Shear Zone

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Contact Of Granodiorite And Hornfels; Shear Zone

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mill City District; Central District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Boa Exploration (Canadian)
    First year 1984

Comments on the workings information

  • OLD CAVED ADITS, NEW ACCESS ROAD, MILL SITE

Comments on development

  • OLD CAVED ADITS, NEW ACCESS ROAD AND MILL SITE. SMALL PORTABLE MIL WAS BEING INSTALLED IN 1984, BUT NO EVIDENCE OF ANY EXPLORATION ON THE VEIN

Reference information

Bibliographic references

  • Deposit

    TINGLEY, J.V., 1984, NBMG FIELD EXAMINATION, REPORT, AND GEOCHEMICAL ANALYSES, 9/21/84

General comments

Subject category Comment text
Deposit OLD WORKINGS FOLLOW N 40 E CONTACT BETWEEN GRANODIORITE AND HORNFELS; CONTACT DIPS TO NE; SHEAR ZONE ALONG CONTACT. SOME CLOTS HEMATITE, SOME WHITE VEIN QUARTZ; ROCK MOD. KAOLINIZED.
Deposit SUGGS, A SEMI-RECLUSE, LIVED HERE DURING THE 1960'S-1970'S; REMAINS OF HIS CABIN CAN BE SEEN BELOW THE OLD MINE AREA ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSERV

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-SEP-1994 Li, Zhiping (Peters, S.) 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 Nevada resources

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