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Homestake Mine

Past Producer in Lincoln county in Nevada, United States with commodities Gold, Silver
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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. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10037376
MRDS ID M032076
Record type Site
Current site name Homestake Mine
Related records 10270923

Geographic coordinates

Geographic coordinates: -114.07194, 37.92468 (WGS84)
Elevation 2158
Relative position 1/2 MILE S OF DEER LODGE

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)

Meadow Valley Wash(hydrologic unit)

Lower Colorado-Lake Mead(hydrologic accounting unit)

Lower Colorado-Lake Mead(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
01N 71E 19 Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1982)

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Copper Ore
Alunite Gangue
Fluorite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Chloritization, Silicification, Silicification

Analytical data

Result SAMPLES 1727 AND 1728 CONTAIN, RESPECTIVELY: 200 PPM MN, 50 AND 5 PPM AG, 20 AND 0 PPM AU, 200 AND 500 PPM BA, 0 AND 100 PPM MO, 20 AND 50 PPM PB, 0 AND 200 PPM SR, 10 AND 100 PPM V, 0 AND 100 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 > Latite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -114.07194, 37.92468
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description N-S And E-W Vein Systems
Type of structure Local
Structure description Fault Is Probably Pre-Mineral, For Although Slicks Are Present On Footwall, Vein Is Relatively Unbrecciated.

Ore body information

  • General form IRREGULAR
    Strike N-S TO N15E
    Dip 40-50W

Controls for ore emplacement

  • Fractures, Shear Zone

Comments on the geologic information

  • CRUSTIFIED EPITHERMAL QUARTZ VEIN, WITH CHALCEDONIC AND COMB QUARTZ YELLOWISH ANDULARIA, LAMECLAR CARBONATE. MERCURY RECOVERED BY PANNING

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Eagle Valley (Fay, Gold Springs) District (Fay, Gold Springs) District

Land status

Ownership category Private

Comments on the workings information

  • GLORY HOLE OR STOPE FOLLOWS VEIN STRUCTURE FOR SEVERAL HUNDRED FEET. SHORT SHAFTS ARE INCLINED ALONG VEIN AT WEST EDGE OF STOPE. STOPE IS ABOUT 10-15 FT DEEP. THERE ARE OTHER SHAFTS AND SHALLOW WORKINGS IN THE AREA, BUT THEY ARE NOT VERY EXTENSIVE.

Comments on development

  • NO ACTIVITY AT TIME OF EXAMINATION IN 1983, BUT AREA NEAR MINE IS STAKED.

Reference information

Bibliographic references

  • Deposit

    TSCHANTZ CM & PAMPEYAN EH, 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO, NEV BUR MINES BULL 73

  • Deposit

    USGS, 1920, PP 111, P. 563-568.

  • Deposit

    BENTZ, J. AND SMITH, P., 1983, FIELD EXAMINATION REPORT, SEPT 19, 1983.

General comments

Subject category Comment text
Deposit OPEN-CENTERED FISSURE VEINS AND VEINLETS WHICH CARRY PYRITE. THE HANGING WALL AND FOOTWALL ANDESITES ARE IRON-STAINED, BLEACHED, SILICIFIED, AND HEAVILY QUARTZ-VEINED. THE ROCKS ARE NOTABLY BRECCIATED (SLICCKS ARE ABUNDANT) AND SHOW A NETWORK OF CRUSTIFORM QUARTZ VEINS AND VEINLETS WHICH EXTEND OUTWARD INTO THE WALLROCK ADJACENT TO THE MAIN VEIN. QUARTZ VEINING OF WALLROCKS INCREASES WIDTH OF VEIN EXPOSURE TO 10 FT OR MORE. MAIN VEIN IS SHEARED BY SEVERAL SMALL E-W STRUCTURES AND MAY BE TRUNCATED BY ONE SUCH STRUCTURE AT THE SOUTHERN END OF THE EXPOSURE.
Deposit CRUSTIFIED EPITHERMAL QUARTZ VEIN WITH ADULARIA (ALUNITE ?) APPEARS TO HAVE BEEN EMPLACED ALONG A SHEAR ZONE. UPPER PORTION OF EXPLORED VEIN CONSISTS OF MASSIVE TO COCKADE QUARTZ WHICH ENCASES SILICIFIED ANDESITE AND POSSIBLY SOME RHYOLITE FRAGMENTS WHICH WERE PROBABLY RIPPED UP AND INCORPORATED IN VEIN DURING EMPLACEMENT. MAIN VEIN IS A MASSIVE TO BANDED, SUGARY TO CHALCEDONIC GREENISH WHITE QUARTZ-ADULARIA (?) VEIN OVER 5 FT WIDE. MOST QUARTZ IS VERY FINE-GRAINED AND TYPICALLY FORMS UNDULATORY CHALCEDONIC BANDS PARALLEL TO THE VEIN. SOME OF THE BANDS ARE DARK WITH FINELY DISPERSED SULFIDES WHICH ARE PROBABLY AG-BEARING MINERALS, AND IN SEVERAL SAMPLES, VERY FINE-GRAINED FREE GOLD WAS NOTED IN THE SULFIDE-RICH LENSES. GOLD ALSO OCCURS WITH PYRITE, MINOR CHALCOPYRITE AND BLUE METALLIC SULFIDES IN FINE-GRAINED CLOTS DISPERSED RANDOMLY THROUGHOUT SUGARY QUARTZ VEIN IN DUMP SAMPLES AND IN OUTCROP. THE GOLD-BEARING FINE-GRAINED QUARTZ VEIN IS CROSSCUT BY LATE-STAGE CLEAR VITREOUS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 Harner, Joy L. (Roberts, Ralph J.) U.S. Geological Survey
Updater 01-AUG-1984 La Pointe, D.D. (Tingley, J.V.) U.S. Geological Survey

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.