Eagle Rock Mine

Occurrence in Lincoln county in Nevada, United States with commodities Copper, Tungsten, Antimony, Lead, Zinc, Iron, Manganese, Silver, Gold
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. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10045922
MRDS ID M233817
Record type Site
Current site name Eagle Rock Mine
Alternate or previous names Devlin Prospect, Prince Group of Claims, Eagle Rock Claims

Geographic coordinates

Geographic coordinates: -114.75446, 38.61467 (WGS84)
Elevation 2195
Relative position = 45 MILES SOUTH OF ELY AND 50 MILES NORTH OF PIOCHE

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Shingle Pass SE(quadrangle 1:24,000 scale)

Garrison(quadrangle 1:100,000 scale)

Lund(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)

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
009N 064E 26 NE4 Nevada

Comments on the location information

  • WEST FLANK OF SCHELL CREEK RANGE IN CAVE VALLEY

Commodities

Commodity Importance
Copper Primary
Tungsten Critical Primary
Antimony Critical Primary
Lead Primary
Zinc Critical Primary
Iron Secondary
Manganese Critical Secondary
Silver Secondary
Gold Tertiary

Materials information

Materials Type of material
Bindheimite Ore
Galena Ore
Wolframite Ore
Calcite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Analytical data

Result 1.5 % CU
Result 0.3 % W
Result 0.15 % SB, PB, ZN, AND BI AND TRACE OF AGSAMPLES TAKEN BY THE USBM IN THE EARLY 1960S CONTAINED 0.41-0.77% WO3 AND SEVERAL OZ/TON AG WITH A TRACE OF AU. NBMG SAMPLE 8145 CONTAINS 10% FE, 150 PPM MN, 150 PPM AG, 2000 PPM AS, 3000 PPM BA, 50 PPM BI, 20 PPM CO, 500 PPM CU, 15 PPM M0, 10 PPM NI, 700 PPM PB, 500 PPM SB, 500 PPM W, 700 PPM ZN, 20 PPM ZR. SAMPLE 814 W CONTAINS 3% FE, 1000 PPM MN, 30 PPM AG, 100 PPM BA, 70 PPM BI, 1000 PPM CU, 150 PPM PB, 200 PPM SB, 2000 PPM W, 500 PPM ZN.

Mineral occurrence model information

Model code 46
USGS model code 15a
Deposit model name W veins

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Prospect Mountain Quartzite
    Rock description Prospect Mountain Quartzite
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -114.75446, 38.61467

Economic information

Geologic structures

Type of structure Local
Structure description Fracture Zone N50e And 60nw

Ore body information

  • General form TABULAR
    Strike N50E
    Dip 45-65 NW
    Thickness 0.91M
    Length 152.4M
    Depth to top 0M

Comments on the geologic information

  • MINERALIZATION OCCURS IN 2 QUARTZ VEINS. ONE VEIN IS FE-OXIDE STAINED QUARTZ WITH MASSIVE TO BLADED, FINE TO COARSE GRAINED WOLFRAMITE. THE OTHER IS MASSIVE QUARTZ WITH WOLFRAMITE AND SULFIDES PRESENT

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1927
Discoverer John C. Clark And Francis Riordan

Mining district

District name Patterson; Patterson Pass; Cave Valley

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • 1 ADIT AND 2 OLD SHACKS ON PROPERTY AS WELL AS SURFACE CUTS AND PITS ALONG STRIKE OF THE VEINS

Reference information

Bibliographic references

  • Deposit

    SCHRAEDER, F.C., 1931, NOTES ON ORE DEPOSITS AT CAVE VALLEY, PATTERSON DISTRICT, LINCOLN COUNTY, NEVADA: UNIV. OF NEVADA BULL. 25, #3, P 5-16

  • Deposit

    TSCHANZ, C.M., AND PAMPEYAN, E.H., 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN COUNTY, NEVADA: NEV. BUREAU OF MINES & GEOLOGY BULL. 73, 187P

  • Deposit

    FIELD CHECK BY BENTZ AND SMITH, NBMG, 1981

  • Deposit

    NBM BULL., STAGER, H.K. (IN PREP. JAN. 1984)

  • Deposit

    NBMG MINING DISTRICT FILE 174, ITEM 3.

General comments

Subject category Comment text
Deposit Discovery Year: LATE 1920'S (?)
Deposit WOLFRAMITE AND SOME SCHEELITE OCCUR AS SCATTERED SMALL CRYSTALS WITH LIMONITE AND MN OXIDES IN SEAMS AND VUGS OF 2 QUARTZ VEINS ABOUT 800 FT APART, 2-3 FT THICK, TRACEABLE IN SURFACE CUTS AND OUTCROPS FOR 300-500 FT ALONG STRIKE. ONE VEIN CONTAINS BASE METAL SULFIDES WITH THE WOLFRAMITE, BUT THE OTHER DOES NOT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Molinari, Mark P. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-FEB-1985 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

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.