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Big Ledge #2

Past Producer in Churchill county in Nevada, United States with commodities Silver, 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. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10047608
MRDS ID M243018
Record type Site
Current site name Big Ledge #2
Alternate or previous names NBMG Sample Sites 3976, 3977, 3978, Jelinek Mine In Part

Geographic coordinates

Geographic coordinates: -118.18513, 39.20241 (WGS84)
Elevation 1817

Site location context

Political divisions (FIPS codes)

Churchill(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bell Canyon(quadrangle 1:24,000 scale)

Fallon(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dixie Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

DOD(Federal land areas administered by DOD)

Geographic areas

Country State County
United States Nevada Churchill

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016N 034E 32 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification Of Wallrock, Mostly On South, Or Hanging Wall Side

Analytical data

Result SAMPLE 3976 CHIPPED FROM VEIN IN WEST ADIT CONTAINS 0.02% MG, 15% CA, 1500 PPM MN, 30 PPM AG, 70 PPM BA, 15 PPM BE, 15 PPM PB, 300 PPM SR. SAMPLE 3977 CHIPPED FROM VEIN IN CENTER OF STOPE IN WEST DRIFT CONTAINS 0.7% FE, 0.1% MG, 7% CA, 0.05% TI, 1500 PPM MN, 50 PPM AG, 500 PPM BA, 20 PPM BE, 15 PPM CU, 5 PPM MO, 15 PPM PB, 700 PPM SR, 10 PPM V, 30 PPM ZR. SAMPLE 3978 CHIPPED FROM VEIN CUTTING MAIN ADIT CONTAINS 0.2% FE, 0.1% MG, 7% CA, 0.02% TI, 1000 PPM MN, 7 PPM AG, 300 PPM BA, 20 PPM BE, 5 PPM CU, 5 PPM NI, 15 PPM PB, 300 PPM SR, 20 PPM ZR.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -118.18513, 39.20241
ListMap

Economic information

Ore body information

  • Width 6.1M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1906
Discoverer Horgan And D'Arcy

Mining district

District name Fairview District

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • WEST ADIT ON BIG LEDGE #2 WHERE IT OVERLAPS BIG LEDGE #1

Comments on development

  • SOLD TO DAVIS IN 1906, WORKED UNTIL 1916, SOLD TO JELINEK, WHO WORKED THE MINE INTO THE 1920'S-INACTIVE IN 1986

Reference information

Bibliographic references

  • Deposit

    QUADE, JACK AND TINGLEY, J.V., 19 OCT 86, NBMG FIELD EXAMINATION REPORT AND SAMPLE ANALYSES.

  • Deposit

    SCHRADER, F.C., 1947, UNPUB. REPORT ON CARSON SINK AREA.

  • Deposit

    NBMG BULL 83, 1974, P. 71-74.

General comments

Subject category Comment text
Deposit VEIN MATERIAL CONSISTING OF QUARTZ, CALCITE, MN OXIDES, ADULARIA WITH SOME BRECCIA DENSE WHITE SILICA, AND AG-SULFIDE SPECKS ALONG A SULFIDE STREAK UP TO 0.25 INCH THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1986 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.