NBMG Sample Site 788 Unnamed Prospect

Occurrence in Lincoln county in Nevada, United States with commodities Gold, Barium-Barite, Lead
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. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046366
MRDS ID M241508
Record type Site
Current site name NBMG Sample Site 788 Unnamed Prospect
Alternate or previous names NBMG Sample Site 788
Related records 10125160

Geographic coordinates

Geographic coordinates: -114.0611, 37.35554 (WGS84)
Elevation 1362

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dodge Spring(quadrangle 1:24,000 scale)

Clover Mountains(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Virgin(hydrologic unit)

Lower Colorado-Lake Mead(hydrologic accounting unit)

Lower Colorado-Lake Mead(hydrologic subregion)

Lower Colorado(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 Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007S 071E 12 Nevada

Commodities

Commodity Importance
Gold Primary
Barium-Barite Critical Primary
Lead Tertiary

Materials information

Materials Type of material
Barite Ore
Calcite Gangue
Psilomelane Gangue
Quartz Gangue
Sericite Gangue

Alteration

  • (Local) Argillic, Propylitic

Analytical data

Result SAMPLE 788 CONTAINS 500 PPM MN, 5 PPM AG, 200 PPM BA, 70 PPM CU, 100 PPM PB.

Mineral occurrence model information

Model code 156
USGS model code 25g
Deposit model name Epithermal Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -114.0611, 37.35554

Economic information

Geologic structures

Type of structure Regional
Structure description Faulting Appears To Parallel Se Edge Of Proposed Caliente Caldron Complex.
Type of structure Local
Structure description Set Of N20e, Vertical Shears

Ore body information

  • General form TABULAR
    Strike N65E
    Dip 90
    Thickness 3.66M

Controls for ore emplacement

  • Fault Zone; Brecciation

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Vigo Area

Comments on the workings information

  • SINGLE SHAFT, SHALLOW, CAVED. MOST OF DUMP WASHED AWAY DOWN DRAINAGE. GOOD CONDITION OF ACCESS ROAD PROBABLY MAINTAINED FOR HUNTERS.

Reference information

Bibliographic references

  • Deposit

    SMITH, P., 1983, FIELD EXAMINATION, AUG. 21, 1983

  • Deposit

    USGS MAP MI-1041

General comments

Subject category Comment text
Deposit HYDROTHERMAL BRECCIA ZONE IN INTRUSIVE. FAULT ZONE IN WALL OF SHAFT IS FILLED AND CEMENTED WITH MASSIVE SUGARY QUARTZ AND CRYSTALLINE CALCITE VEINS WHICH ARE IN TURN IRON-STAINED AND COATED WITH MINOR PSILOMELANE, THE INTRUSIVE ON EITHER SIDE OF THE FAULT IS INTENSELY BRECCIATED AND CEMENTED WITH COCKSCOMB HYDROTHERMAL QUARTZ WHICH HAS ABUNDANT OPEN SPACES. THE QUARTZ CRYSTALS ARE VERY FINEGRAINED TO 0.5 INCH AND RADIATE FROM CENTRAL NUCLEATION POINTS AND EXTEND FROM THE BRECCIA FRAGMENTS. THE QUARTZ IS HEAVILY FE- AND MN- STAINED, AND FROM THE WEIGHT OF THE ROCKS, SUGGESTS THAT BARITE MIGHT BE INTERGROWN. PLATY, CRYSTALLINE CALCITE FILLS FRACTURES AND IS ALSO COATED WITH IRON AND MANGANESE STAINS. THE INTRUSIVE IS GRAY-GREEN (PROPYLITICALLY ALTERED?) EQUIGRANULAR AND STRONGLY WEATHERED, SHOWING ARGILLIC ALTERATION. SERICITE OCCURS LOCALLY. BRECCIA FRAGMENTS EXHIBIT MILLING. INTERSECTING THE MAIN FAULT ZONE ARE SETS OF N20E VERTICAL SHEARS. A VERY MINOR AMOUNT OF OXIDIZED PYRITE AND A
Deposit LONE GRAIN OF GALENA IN THE QUARTZ CEMENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1984 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

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.