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NBMG Sample Location 1441

Prospect in Lincoln county in Nevada, United States with commodities Lead, Zinc, Silver, Iron, Manganese
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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. 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 10097291
MRDS ID M241582
Record type Site
Current site name NBMG Sample Location 1441
Related records 10222136

Geographic coordinates

Geographic coordinates: -114.60223, 37.89385 (WGS84)
Elevation 2195
Relative position ABOUT 0.7 MILE N 68 E FROM COMET MINE.

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Highland Peak(quadrangle 1:24,000 scale)

Caliente(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Dry Lake Valley(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 066E 04PROJECTED FROM EAST Nevada

Comments on the location information

  • UNSURVEYED TOWNSHIP AND RANGE.

Commodities

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

Materials information

Materials Type of material
Galena Ore
Pyrite Ore
Specularite Ore
Sphalerite Ore
Calcite Gangue
Quartz Gangue
Rhodochrosite Gangue
Siderite Gangue

Alteration

  • (Local) Silicification

Analytical data

Result SAMPLE 1441 CONTAINS 10% FE, GREATER THAN 5000 PPM MN, 100 PPM AG, 50 PPM BA, 100 PPM CD, 200 PPM CU, 10000 PPM PB, 200 PPM SB, 200 PPM SR, GREATER THAN 10000 PPM ZN.

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Lyndon Limestone;Pioche Shale, Highland Peak
    Rock description Lyndon Limestone;Pioche Shale, Highland Peak
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -114.60223, 37.89385
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fractures

Ore body information

  • General form TABULAR
    Strike N 70 W TO E-W
    Dip 90-87 NE
    Thickness 1.52M

Controls for ore emplacement

  • Vertical Fractures Or Fissures At A High Angle To Bedding

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Comet District

Comments on the workings information

  • SERIES OF SHORT ADITS, PROSPECTS AND SHAFTS ALONG VEIN STRUCTURE. LOWER ADIT IS 10-12 FT DEEP, TRENDS S70E. LARGEST WORKING IS ABOVE SAMPLED ADIT, TRENDS SE, INCLINED SHAFT ABOUT 30 FT DEEP. BULLDOZING, TRENCHING DONE RECENTLY. OLD CABIN OF HAND-HEWN LIMESTONE BLOCKS BELOW WORKINGS

Comments on development

  • RECENT (WITHIN YEAR PRIOR TO AUG 1983) SCRAPING AND TRENCHING WITH BULLDOZER. ROAD TO CABIN IS EXTENSIVELY BULLDOZED. DOZING MAY BE IN PREPARATION FOR DRILLING; UPPER ROADS NOT VISITED; POSSIBLY DRILL SITES.

Reference information

Bibliographic references

  • Deposit

    BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, AUG. 27, 1983.

  • Deposit

    FITCH, D.C., 1964, GEOLOGY AND ORE DEPOSITS OF THE COMET DISTRICT, LINCOLN CO., NEV; UNIV. OF NEW MEXICO MS. THESIS, P. 83-85.

General comments

Subject category Comment text
Deposit SHORT ADIT FOLLOWS AN OXIDIZED SULFIDE REPLACEMENT VEIN IN THICK-BEDDED (1-FT BEDS) TO MASSIVE LIMESTONE BEDS. UPPER ADIT IS IN BOLD CARBONATE, OUTCROP. AT LOWER ADIT, THE HOST LIMESTONE IS A MEDIUM GREY SUGARY SLIGHTLY DOLOMITIC (SILICIFIED?) LIMESTONE CONTAINING ALGAL STRUCTURES AND FOSSIL FRAGMENTS. NEAR VEIN, FOSSIL REMNANTS ARE REPLACED BY CALCITE OR IRON OXIDES. VEIN IS WELL-EXPOSED AT LOWER AND UPPER PORTALS. THE "VEIN" OR ALTERED FRACTURE (FISSURE) ZONE IS ABOUT 3-5 FT WIDE, STRIKING N 70 W AT LOWER WORKING TO E-W AT UPPER WORKING. ALTERED LIMESTONE WITHIN ZONE IS SILICIFIED AND CONTAINS ABUNDANT FE AND MN OXIDES. REPLACEMENT APPEARS TO HAVE TAKEN PLACE ALONG SEVERAL VERTICAL FRACTURES OR FISSURES AT A HIGH ANGLE TO THE BEDDING. THE ALTERED ROCK WITHIN THE ZONE SHOWS GOSSANY HONEYCOMB BOXWORKS AND IRREGULAR PODS AND VEINS OF COARSE CALCITE/SIDERITE, QUARTZ AND MANGANOSIDERITE. SAMPLE 1441 WAS COLLECTED FROM OUTCROP AT PORTAL AND CONSISTS OF REPLACEMENT ORE WITH IRREGULAR CLOTS
Deposit OF GALENA, SPHALERITE, SPECULARITE, OXIDIZED PYRITE, AND ABUNDANT FE AND MN OXIDES WITHIN A MANGANOSIDERITE-CALCITE-QUARTZ GANGUE. ROCKS ARE HEAVY AND SILICIFIED, AND EUHEDRAL CRYSTALLINE QUARTZ LI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-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.

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.