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NBMG Sample Site 2891

Occurrence in Washoe county in Nevada, United States with commodities Gold, Silver, Copper, Arsenic
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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. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10047400
MRDS ID M242696
Record type Site
Current site name NBMG Sample Site 2891

Geographic coordinates

Geographic coordinates: -119.26322, 39.92295 (WGS84)
Elevation 1463

Site location context

Political divisions (FIPS codes)

Washoe(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Russell Peak(quadrangle 1:24,000 scale)

Reno(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Pyramid-Winnemucca Lakes(hydrologic unit)

Truckee(hydrologic accounting unit)

Central Lahontan(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Washoe

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 024N 024E 27 SE OF NE Nevada

Comments on the location information

  • ACCESSIBLE BY FAIR ROAD SE OF THE CROSBY MINE . INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Oxidation

Analytical data

Result SAMPLE 2891 FROM THE SHEAR ZONE INSIDE THE INCLINE CONTAINS 20% FE, 5% MG, 3% CA, 0.05% TI, 300 PPM MN, 1.5 PPM AG, 1500 PPM AS, 0.7 PPM AU (BY AA ANALYSIS), 700 PPM B, 15 PPM CO, 20 PPM CR, 1500 PPM CU, 10 PPM NI, 20 PPM PB, 70 PPM SC, 70 PPM V, 70 PPM Y.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Hartford Hill Rhyolite
    Rock description Hartford Hill Rhyolite
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -119.26322, 39.92295
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault-Block Bounded By Nne-And Ne-Trending Faults

Ore body information

  • General form TABULAR
    Strike N-S
    Dip W

Controls for ore emplacement

  • N-Trending W-Dipping Shear Zone

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Nightingale District

Land status

Ownership category Private

Comments on the workings information

  • SMALL INCLINE

Comments on development

  • SMALL, OLDER PROSPECT-NO ACTIVITY IN 1985.

Reference information

Bibliographic references

  • Deposit

    QUADE, JACK, 1 MAR 85, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

  • Deposit

    NBMG STAFF, 1985, NBMG OFR 85-3

  • Deposit

    BONHAM, H.F., JR., 1969, NBMG BULL 70, PL. 1, 2.

General comments

Subject category Comment text
Deposit PROSPECT EXPLORES A N-TRENDING SHEAR THAT DIPS WEST. NO VISIBLE MINERALIZATION, BUT PARTS OF THE ZONE ARE GOSSAN-LIKE.

Reporter information

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