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  3. Mineral Resource Data System (MRDS)

A and H Claim

Occurrence in Humboldt county in Nevada, United States with commodities Gold, Silver, Lead, Arsenic, Barium-Barite
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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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10047268
MRDS ID M242543
Record type Site
Current site name A and H Claim
Alternate or previous names NBMG Sample Site 2630
Related records 10295882

Geographic coordinates

Geographic coordinates: -118.15404, 40.92406 (WGS84)
Elevation 1365

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gaskell(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)

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 10 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Arsenic Critical Tertiary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Hematite Gangue
Quartz Gangue

Analytical data

Result SAMPLE 2630 OF WHITE QUARTZ VEIN WITH HEMATITE CLOTS AND SOME GREEN STAINING CONTAINS 3% FE, 0.15% MG, 2% CA, 0.1% TI, 200 PPM MN, 100 PPM AG, +10000 PPM AS, 50 PPM B, 500 PPM BA, 5 PPM CU, 7 PPM NI, 15000 PPM PB, 100 PPM SB, 200 PPM SR, 50 PPM V, 50 PPM ZR. AA ANALYSIS INDICATES 0.80 PPM AU AS WELL.

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 Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Auld Lang Syne Group
    Rock description Auld Lang Syne Group

Economic information

Ore body information

  • General form TABULAR
    Strike N 30 E
    Dip 90

Controls for ore emplacement

  • N 30 E Shear Zone; Shale-Diorite Contact

Comments on the geologic information

  • SHALE-DIKE CONTACT ON EAST SIDE IS VERY SHARP, N 35 E, 80 SE DIP. ON WESTERN SHALEY-HORNFELS-DIKE CONTACT, THIN (1-1.5 IN) QUARTZ VIENS LACE DIORITE

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Mill City District; Central District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Mert Higgins Investment Corp. (Feb.
    Last year 1983

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 15.24M

Comments on the workings information

  • OLD SHAFTS, NARROW STOPES, CUTS, SHAFTS OVER 50 FT DEEP.

Reference information

Bibliographic references

  • Deposit

    TINGLEY, J.V., 1984, FIELD EXAMINATION, NBMG; 9-20-84

General comments

Subject category Comment text
Deposit SHEAR ZONE ON SHALE-DIORITE CONTACT; PARALLEL SHEAR ZONE TO EAST WITHIN DIORITE, PODS OF WHITE QUARTZ ALONG THE ZONE, SOME HEMATITE STAINING, VEIN 0.5-1.0 FT WIDE WITHIN SHEAR ZONE 5-6 FT WIDE. OLD WORKINGS ARE CONFINED TO THE DIORITE AND TO THE WESTERN CONTACT ZONE.

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.