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  3. Mineral Resource Data System (MRDS)

Bobby Mine

Occurrence in Humboldt county in Nevada, United States with commodities Gold, Silver, Copper, Lead
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10047295
MRDS ID M242575
Record type Site
Current site name Bobby Mine
Alternate or previous names NBMG Sample Site 2953

Geographic coordinates

Geographic coordinates: -118.58906, 41.57044 (WGS84)
Elevation 1536
Relative position IN DYKE CANYON

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dyke Canyon(quadrangle 1:24,000 scale)

Denio(quadrangle 1:100,000 scale)

Vya(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Quinn(hydrologic unit)

Black Rock Desert(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 Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 043N 030E 26 Nevada

Comments on the location information

  • ACCESSIBLE BY VERY BAD ROAD WEST OF THE ENTRANCE TO DYKE CANYON . INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Secondary
Lead Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result SAMPLE 2953 OF DUMP AND EXPOSED VEIN NEAR ADIT CONTAINS 20% FE, 0.07% MG, 0.05% CA, 0.05% TI, 150 PPM MN, 100 PPM AG, 1000 PPM AS, 3.8 PPM AU (AA ANALYSIS), 100 PPM B, 100 PPM BA, 100 PPM BI, 70 PPM CO, 50 PPM CR, 2000 PPM CU, 70 PPM NI, 500 PPM PB, 100 PPM SB, 200 PPM V, 300 PPM ZN.

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 Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Triassic

Nearby scientific data

(1) -118.58906, 41.57044
ListMap

Economic information

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Faults

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1925

Mining district

District name Varyville District; Florence District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Robinson Industries And Associates
    Home office Aurora, Co
    First year 1985

Comments on the workings information

  • SEVERAL SHALLOW ADITS. SAMPLED ADIT BEARS N 80 W, 60 S

Comments on development

  • STAKED ON 9-6-84.

Reference information

Bibliographic references

  • Deposit

    QUADE, JACK, 1984, FIELD EXAMINATION, 9-27-84, AND SAMPLE ANALYSIS

  • Deposit

    WILLDEN, R., 1964, NBMG BULL 59

General comments

Subject category Comment text
Deposit ALL OF THE WORKINGS IN THIS AREA ARE ALONG FAULTS WHERE QUARTZ-BRECCIATED VEINS CUT META-ANDESITES. VEIN IS HIGHLY OXIDIZED AND GOSSAN-LIKE NEAR THE SURFACE.
Deposit Discovery Year: EARLY 1900'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-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.

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.