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  3. Mineral Resource Data System (MRDS)

Willard Mine South

Past Producer 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. 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 10104132
MRDS ID M242911
Record type Site
Current site name Willard Mine South
Alternate or previous names NBMG Sample Sites 2582, 2679
Related records 10174807, 10310458

Geographic coordinates

Geographic coordinates: -118.33626, 40.24823 (WGS84)
Elevation 1463

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Coal Canyon(quadrangle 1:24,000 scale)

Lovelock(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 028N 032E 36 NW 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
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Wall Rock Is Bleached, Kaolinized

Analytical data

Result SAMPLE 2582, OUTCROP CHIP OF QUARTZ STOCKWORK MATERIAL CONTAINS 0.7% FE, 0.2% MG, 0.2% CA, 0.07% TI, 70 PPM MN, 5 PPM AG, 1000 PPM AS, 30 PPM B, 500 PPM BA, 2 PPM BE, 15 PPM CR, 30 PPM CU, 20 PPM LA, 5 PPM MO, 10 PPM NI, 50 PPM PB, 2000 PPM SB, 20 PPM V, 10 PPM Y, 70 PPM ZR, AND 0.85 PPM AU ( BY AA ANALYSIS). SAMPLE 2679 IS SILICIFIED BRECCIA FROM DUMP CONTAINS 1.5% FE, 0.3% MG, 0.2% CA, 0.15% TI, 50 PPM MN, 15 PPM AG, 1000 PPM AS, 50 PPM B, 700 PPM BA, 2 PPM BE, 30 PPM CR, 50 PPM CU, 20 PPM MO, 10 PPM NI, 30 PPM PB, 700 PPM SB, 5 PPM SC, 70 PPM V, 15 PPM V, 150 PPM ZR, AND 6.7 PPM AU (BY AA ANALYSIS).

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 Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Stratigraphic age (youngest) Late Triassic
    Stratigraphic age (youngest) Late Triassic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Raspberry
    Rock description Raspberry

Nearby scientific data

(1) -118.33626, 40.24823
ListMap

Economic information

Ore body information

  • Strike E-W TO N 70 E
    Dip 90

Controls for ore emplacement

  • Vertical Shear Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1915
Year of first production 1915
Year of last production 1951

Mining district

District name Willard District

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • SEVERAL SHAFTS, NUMEROUS DRILL ROADS AND ROTARY HOLES; ADITS, CUTS

Comments on development

  • WORKED ABOUT 1915. FAIRLY RECENT DRILL ROADS AND ROTARY DRILL HOLES, ALTHOUGH NO ACTIVITY AT TIME OF EXAMINATION IN 1985. DRILLING PROBABLY IN MID-LATE 1970'S.

Reference information

Bibliographic references

  • Deposit

    JOHNSON, M.G., 1977, NBMG BULL 89, P. 102-103.

  • Deposit

    TINGLEY, J.V., 20 JUNE 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

  • Deposit

    BONHAM, H.F., 17 JUL 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

  • Deposit

    NBMG STAFF, 1985, NBMG OFR 85-3.

General comments

Subject category Comment text
Deposit A NUMBER OF E-W-TRENDING HYDROFRACTED BRECCIA ZONES WITH ANASTOMOSING QUARTZ VEINLETS CUTTING INTERBEDDED PHYLLITE AND SANDSTONE, WITH IRON OXIDES AFTER PYRITE. THE QUARTZ IS WELL CRYSTALLIZED, COMMONLY VUGGY, WITH CRYSTALS FORMING ROSETTES AROUND BRECCIA FRAGMENTS. DENSITY OF DRILLING PATTERN IN AREA INDICATES THAT SOME GOLD MINERALIZATION IS PRESENT. QUARTZ VEIN WITH BRECCIA AND JASPEROID ALONG SHEAR ZONE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1987 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-DEC-1992 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
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.

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.