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NBMG Sample Site 2421

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

Geologic information

Identification information

Deposit ID 10047370
MRDS ID M242658
Record type Site
Current site name NBMG Sample Site 2421
Related records 10125244

Geographic coordinates

Geographic coordinates: -118.45349, 40.90989 (WGS84)
Elevation 1478

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jungo(quadrangle 1:24,000 scale)

Eugene Mountains(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Quinn(hydrologic unit)

Black Rock Desert(hydrologic accounting unit)

Black Rock Desert-Humboldt(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 035N 031E 13 NW Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Lead Primary
Silver Primary
Gold Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Iron Gangue
Quartz Gangue

Analytical data

Result SAMPLE 2421, DUMP SAMPLE OF FE-STAINED QUARTZ, VUGGY AND BRECCIATED, WITH MINOR AMOUNTS OF GALENA VISIBLE, CONTAINS 3% FE, 0.05% MG, 0.15% CA, 0.005% TI, 70 PPM MN, 200 PPM AG, 2000 PPM AS, 20 PPM B, 100 PPM BA, 20 PPM BI, 50 PPM CD, 10 PPM CR, 100 PPM CU, 20 PPM NI, +20000 PPM PB, 100 PPM SB, 200 PPM ZN, AND ALSO 0.1 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 Metamorphic Rock > Phyllite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -118.45349, 40.90989
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Jungo Area

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • LARGE REWORKING AREA ON SOUTH SIDE OF GULLEY CONSISTS OF AN OPEN CUT ABOUT 20 FT LONG TRENDING N 10 E AT THE END OF WHICH ARE 2 ADITS SIDE BY SIDE. THE ADIT TO THE SOUTH IS VERY SHORT (ABOUT 20 FT). ADIT TO NORTH IS 50+ FT LONG? WITH A VERTICAL STOPE AT ITS MOUTH MAYBE 30-40 FT DEEP. 2-4 DOZER CUTS ON SLOPE AROUND THESE WORKINGS. LONGER ADIT TRENDS ABOUT N 40 E BUT HAS A BEND TO NW ABOUT 30 FT IN (ON OTHER SIDE OF VERTICAL STOPE). ANOTHER ADIT BELOW THIS ONE, AT BOTTOM OF GULLEY TRENDS S 70 E, PROBABLY JOINS WITH VERTICAL STOPE FROM ABOVE ADIT. WHITE FE-STAINED QUARTZ WITH GALENA ON DUMP. ABOUT 30+ FT VERTICAL DIFFERENCE IN THE TWO WORKINGS.

Comments on development

  • LOTS OF CLAIM POSTS BUT NO PAPER. CLAIM POSTS FAIRLY NEW.

Reference information

Bibliographic references

  • Deposit

    JONES, R.B., 18 AUGUST 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS.

  • Deposit

    NBMG STAFF, 1985, NBMG OFR 85-3.

  • Deposit

    WILLDEN, R., 1964, NBMG BULL 59, PL. I.

General comments

Subject category Comment text
Deposit MASSIVE BLOB OF MILKY WHITE IRON-STAINED QUARTZ IN A PHYLLITE. SIMILAR TO PROSPECT ON EAST SIDE OF RANGE EXCEPT THAT QUARTZ IS IN METASEDIMENTS INSTEAD OF META-INTRUSIVE (DIKE-SILL). SAME PHYLLITE HERE AS ON EAST SIDE OF RANGE. PHYLLITE STRIKES N 30 E, DIP 35 NW. BEDS VERY CONTORTED AND DIP-STRIKE ARE VARIABLE. LIKEWISE, QUARTZ "VEIN" IS HIGHLY CONTORTED. MINOR GALENA SEEN IN QUARTZ ON DUMP. SECOND READING-N 45 E, 34 NW. NO INTRUSIVE IN IMMEDIATE AREA OF WORKINGS, HOWEVER, RIDGE TO NW OF WORKINGS APPEARS TO BE INTRUSIVE ROCK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-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.