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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Eira

Past Producer in Elko 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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10104028
MRDS ID M233391
Record type Site
Current site name Eira

Geographic coordinates

Geographic coordinates: -116.22621, 41.31351 (WGS84)
Location accuracy 100(meters)
Relative position I 100m To Claim Center

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tuscarora(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Owyhee(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 039N 051E 03 Nevada

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Silver Ore

Alteration

  • (Local) Inner Potassic Zone; Early Outer Propylitic Zone

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 Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene

Nearby scientific data

(1) Alluvium, undifferentiated
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description E-Striking Faults Conjugate To A Set Of Nw-Striking Faults

Ore body information

  • General form TABULAR
    Strike NE
    Dip NW

Controls for ore emplacement

  • Intersections Of Fissures

Economic information about the deposit and operations

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

Mining district

District name Tuscarora District

Comments on the production information

  • MAJOR PRODUCTION OCCURRED PRIOR TO 1890

Workings at the site

  • Type of workings Underground
    Overall depth 60.96M

Comments on development

  • MAJORITY OF PRODUCTION OCCURRED PRIOR TO 1890.

Reference information

Bibliographic references

  • Deposit

    SMITH, R.M., 1976, USGS OFR 76-56

  • Deposit

    NOLAN, T.B., 1936, NBMG BULL 25

  • Deposit

    EMMONS, W.H., 1910, USGS BULL 408

  • Production

    NOLAN, T.B.(1936); EMMONS, W.H.(1910) P.61

General comments

Subject category Comment text
Deposit TYPICAL BONANZA-TYPE EPITHERMAL VEIN DEPOSIT. THE LARGER ORE SHOOTS PITCH NORTHWARD ALONG THE JUNCTION OF FISSURES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-79 Kirkham, Richard A. 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.