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NBMG Sample Site 2637

Past Producer in Humboldt county in Nevada, United States with commodity 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. Mineral occurrence model information
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10098685
MRDS ID M242548
Record type Site
Current site name NBMG Sample Site 2637
Related records 10173602

Geographic coordinates

Geographic coordinates: -118.10376, 40.87211 (WGS84)
Elevation 1490

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cosgrave(quadrangle 1:24,000 scale)

Eugene Mountains(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 Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 035N 034E 36 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Limonite Gangue
Quartz Gangue

Analytical data

Result SAMPLE 2637 OF FE OXIDE-STAINED VUGGY QUARTZ VEIN WITH CLOTS OF LIMONITE GOSSAN, MNO STAIN, JAROSITE CRYSTALS, CONTAINS 15% FE, 0.7% MG, 0.05% CA, 0.1% TI, 100 PPM MN, 3 PPM AG, 30 PPM B, 30 PPM CO, 10 PPM CR, 150 PPM CU, 100 PPM MO, 50 PPM NI, 100 PPM PB, 150 PPM SB, 50 PPM V, 15 PPM Y, 15 PPM ZR.

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Economic information

Geologic structures

Type of structure Local
Structure description Fractures

Ore body information

  • Strike N 40 W
    Dip 70 SW
    Thickness 0.91M

Controls for ore emplacement

  • N 40 W, 70 Sw Fracture Zone; Contact Of Gravels And Hornfels.

Economic information about the deposit and operations

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

Mining district

District name Mill City District; Central District

Land status

Ownership category Private

Comments on the workings information

  • PITS ANT CUTS IN GRAVEL; DRIFTS ALONG CONTACT

Comments on development

  • INACTIVE IN 1984

Reference information

Bibliographic references

  • Deposit

    TINGLEY, J.V., 1984, NBMG FIELD EXAMINATION, 9/21/84

General comments

Subject category Comment text
Deposit WORKINGS EXPLORE BEDROCK CONTACT BETWEEN N 70 E, 45 NW STRIKING HORNFELS AND OVERLYING BOULDER GRAVELS; GRAVELS DRAPE OVER BEDROCK, CONTAIN HIGHLY STREAM-POLISHED QUARTZITE BOULDERS UP TO 3 FEET IN DIAMETER. OLD WORKINGS APPEAR TO HAVE BEEN MAINLY IN THE GRAVEL, BUT SOME MINING OF BEDROCK WAS DONE. CUT IN HORNFELS BENEATH GRAVEL EXPLORES N 40 W, 70 SW FRACTURE ZONE, WHICH HAS 2-6 INCH THICK BANDS OF BRECCIATED HORNFELS CEMENTED BY WHITE QUARTZ AND LIMONITE; ZONE IS ABOUT 3 FT WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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.