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  3. Mineral Resource Data System (MRDS)

Jennie Mine

Past Producer in Lincoln county in Nevada, United States with commodities Gold, Silver, Lead, Copper
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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. Land status
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10046535
MRDS ID M241712
Record type Site
Current site name Jennie Mine
Alternate or previous names NBMG Sample Site 1718
Related records 10125696

Geographic coordinates

Geographic coordinates: -114.05026, 37.89858 (WGS84)
Elevation 2103

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Deer Lodge Canyon(quadrangle 1:24,000 scale)

Caliente(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Escalante Desert(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(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 001N 071E 32 Nevada

Comments on the location information

  • MINE LIES ON NEVADA-UTAH BORDER WITH WORKINGS IN BOTH STATES

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Copper Secondary

Materials information

Materials Type of material
Cerargyrite Ore
Gold Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Propylitization, Silicification, Sericitization, Argillization, Bleaching

Analytical data

Result STOPE SAMPLE (1976) ASSAYED TR. AU, 0.2 OZ/T AG. SAMPLE 1718 CONTAINS 300 PPM MN, 2 PPM AG, 200 PPM BA, 30 PPM PB, 50 PPM ZR.

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -114.05026, 37.89858
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault, N80e, 55s, Displaces The Jennie Vein N Of The Shaft. Premineral Faulting, Also.

Ore body information

  • Strike N10W-N15W
    Dip 55-70 NE
    Thickness 6.1M

Controls for ore emplacement

  • Pre-Mineral Faulting As Conduits For Ore-Forming Fluids

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1901
Year of first production 1907
Year of last production 1948

Mining district

District name Stateline/Gold Springs District

Land status

Ownership category Private

Production statistics

  • Year 1948
    Period 1907-1948
    Material AU
    Accuracy Accurate
    Description Cp_Grade: ^ 1.3 Oz/T Ag, Average Grade.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Silver Silver 37g/mt
  • Year 1948
    Period 1907-1948
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^0.22 Oz/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 6g/mt

Workings at the site

  • Type of workings Underground
    Length 243.84M
    Overall depth 91.44M

Comments on the workings information

  • STOPES AND OPEN SHAFTS INCLINED ALONG VEIN STRUCTURE. MILLSITE STILL REMAINS INTACT (1983) AS SO SEVERAL LARGE HEAD FRAMES, ASSAY LABS, ETC. OLD DRILL ROADS IN AREA. MINE WAS DEVELOPED ON THE 60-, 100-, 200, AND 300-FT LEVELS WITH DRIFTS NW AND SE ALONG VEIN

Comments on development

  • PROPERTY APPEARS TO HAVE BEEN RELATIVELY INACTIVE FOR A NUMBER OF YEARS. MINE POSSIBLY HAS SOME SMALL SCALE ACTIVITY ON AN INTERMITTENT BASIS. THIS IS THE LARGEST PRODUCER OF THE GOLD SPRINGS DISTRICT

Reference information

Bibliographic references

  • Deposit

    BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT OF SEPT. 17, 1983.

  • Deposit

    PERRY, L.I., 1976, UTAH GEOLOGY VOL. 3, NO. 1, P. 23-49

  • Deposit

    THOMSON, K.C. AND PERRY, L.I., 1975, UTAH GEOLOGY, VOL. 2, NO. 1,

  • Deposit

    USGS P.P. 111, 1920, P. 565-567.

  • Production

    PERRY, L.I., 1976, P. 32

General comments

Subject category Comment text
Deposit Discovery Year: 1900 OR EARLIER
Deposit VEIN IS WELL EXPOSED IN NORTH WALL OF LOWER SHAFT WHERE IT FORMS A RESISTANT WHITE KNOB 7-10 FT WIDE. VEIN HAS SHARP BUT UNDULATORY CONTACTS WITH THE ALTERED ANDESITE WALLROCK, AND SHOWS SLIGHT "PINCH AND SWELL" SHAPE. IRON-STAINED ANDESITE ADJACENT TO THE VEIN IS FRACTURED AND VEINED PARALLEL TO THE MAIN VEIN ORIENTATION. VEINING OF THE WALL ROCK IS COMMON IN BOTH HANGING AND FOOT WALL EXPOSURES EXTENDING OUTWARD FROM MAIN VEIN ABOUT 5 FT. QUARTZ, CALCITE VEIN, AND QUARTZ VEIN WITH ANDESITE BRECCIA FRAGMENTS ARE THE MOST ABUNDANT ROCK TYPES ON THE LARGE DUMP. ALL VARIETIES OF QUARTZ-CALCITE COMBINATIONS EXIST, IE. QUARTZ REPLACING CALCITE, INTERGROWN WITH CALCITE, QUARTZ CUT BY OR CUTTING CALCITE VEIN. CALCITE IS GENERALLY WHITE, COARSELY CRYSTALLINE AND CONTAINS LITTLE FE. THE QUARTZ IS GENERALLY SUGARY OR MASSIVE, WHITE, AND ALSO OCCURS AS RADIATING OR PRISMATIC INTERLOCKING CRYSTALS IN VEINS AND BRECCIA. MOST VEINS ARE OPEN-CENTERED AND DRUSY QUARTZ FILLS VUGS AND FRACTURES OR
Deposit REPLACES CALCITE. THE ALTERED ANDESITE FRAGMENTS CONTAINED IN THE VEIN ARE HIGHLY SILICIFIED AND STAINED WITH LIMONITE AFTER PYRITE. SOME OF THE FRAGMENTS SHOW A STOCK WORK OF VITREOUS QUARTZ VEINLETS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-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.

External references

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.