NBMG Sample Site 2305

Past Producer in Humboldt county in Nevada, United States with commodities Gold, Silver, Manganese, Lead, Zinc
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 10047312
MRDS ID M242595
Record type Site
Current site name NBMG Sample Site 2305
Related records 10125519

Geographic coordinates

Geographic coordinates: -117.52957, 40.83072 (WGS84)
Elevation 1785

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Adelaide(quadrangle 1:24,000 scale)

Winnemucca(quadrangle 1:100,000 scale)

Winnemucca(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 Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 034N 040E 07 NE OF SW OF SW Nevada

Comments on the location information

  • 1.5 KM DUE NORTH OF ADELAIDE SITE ON TOPO. . INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Manganese Critical Tertiary
Lead Tertiary
Zinc Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Silicification; Argillization

Analytical data

Result SAMPLE 2305, A GRAB SAMPLE OF VEIN MATERIAL AND ALTERED WALLROCK CONTAINS 15% FE, 0.5% MG, 0.3% CA, 0.2% TI, +5000 PPM MN, 150 PPM AG, 5000 PPM AS, 700 PPM B, 500 PPM BA, 1 PPM BE, 50 PPM CD, 70 PPM CO, 1000 PPM CR, 150 PPM CU, 15 PPM MO, 150 PPM NI, +20000 PPM PB, 500 PPM SB, 20 PPM SN, 200 PPM V, 30 PPM Y, 3000 PPM ZN, 150 PPM ZR.

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 Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Preble
    Rock description Preble
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -117.52957, 40.83072

Economic information

Ore body information

  • General form TABULAR
    Strike N 15 E
    Dip 26-30 W
    Width 1M

Controls for ore emplacement

  • N 15 E, 25-30 W Fault Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Gold Run District; Adelaide District

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • PITS AND SHALLOW INCLINED STOPES, DRILL HOLE

Comments on development

  • NO ACTIVITY IN 1984, BUT A ROTARY DRILL HOLE 100M SW WAS PROBABLY DRILLED WITHIN THE LAST FEW YEARS.

Reference information

Bibliographic references

  • Deposit

    GARSIDE, L.J., 1984, NBMG SAMPLE SITE 2305, FIELD EXAMINATION 22 JUN84, AND SAMPLE ANALYSIS

  • Deposit

    WILLDEN, R., 1964, NBMG BULL 59.

General comments

Subject category Comment text
Deposit IRON OXIDE MINERALS OCCUR IN QUARTZ VEIN MATTER AND SILICIFIED ROCK ALONG A FAULT ZONE CUTTING OLIVE PHYLLITE, WORKINGS ARE QUITE SHALLOW, ENTIRELY IN THE OXIDIZED ZONE. STOPING WAS DONE ALONG THE FAULT, UP TO 1 M WIDE. BRECCIATION FOR SEVERAL METERS AWAY FROM THE FAULT IS COMMON. VEIN QUARTZ IS SPOTTY, OFTEN CRUSHED. SERICITE (GREEN) OR ILLITE OCCURS IN THE CRUSHED PHYLLITE IN THE CENTRAL PART OF THE FAULT ZONE. THE WORKINGS EXAMINED HERE ARE ALONG A NORTH-TRENDING LINE OF PITS, ADITS, AND SHAFTS EXTENDING FOR OVER 1.5 KM N-S. EXAMINATION OF PITS TO THE SOUTH INDICATES THAT THIS THRUST FAULT CONTINUES AND IS THE MINERALIZED STRUCTURE AT THE INCLINED SHAFTS IN N W 4 SEC 18, T 34 N, R 40 E. THE STRUCTURE PROBABLY ALSO CONTINUES TO THE NORTH ALONG THE LINE OF WORKINGS IN W 2, SEC 7, T 34 N, R 40 E. THE MORE EXTENSIVE WORKINGS ARE IN NW 4, SEC 18.

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.

Authoritative Nevada resources

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