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Eira mine, Tuscarora District, Elko Co., Nevada, USA

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Latitude & Longitude (WGS84): 41° 18' 48'' North , 116° 13' 34'' West
Latitude & Longitude (decimal): 41.31351,-116.22621
GeoHash:G#: 9rm750yst
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


Structure: E-Striking Faults Conjugate To A Set Of NW-Striking Faults

Alteration: Inner Potassic Zone; Early Outer Propylitic Zone

Deposit: Typical bonanza-type epithermal vein deposit. The larger ore shoots pitch northward along the junction of fissures

Deposit type: Epithermal vein, Comstock

Development: Majority of production occurred prior to 1890.

Ore(s): Intersections Of Fissures

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: NBMG Bull 106 Geology and Mineral Resources of Elko County, Nevada
'Andesite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chlorargyrite
Formula: AgCl
Reference: NBMG Bull 106 Geology and Mineral Resources of Elko County, Nevada
'commodity:Gold'
Formula: Au
Reference:  
Silver
Formula: Ag
Reference: NBMG Bull 106 Geology and Mineral Resources of Elko County, Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Silver'
Formula: Ag
Reference:  

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Silver'1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
'Acanthite'2.BA.35Ag2S
Group 3 - Halides
'Chlorargyrite'3.AA.15AgCl
Unclassified Minerals, Rocks, etc.
'Andesite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Unclassified Minerals, Rocks, etc.
'Andesite'-

List of minerals for each chemical element

SSulfur
S AcanthiteAg2S
ClChlorine
Cl ChlorargyriteAgCl
AgSilver
Ag AcanthiteAg2S
Ag ChlorargyriteAgCl
Ag SilverAg

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Early Oligocene - Middle Eocene
28.1 - 47.8 Ma



ID: 2856742
Older andesite and intermediate flows and breccias

Age: Paleogene (28.1 - 47.8 Ma)

Description: Unit includes andesite or dacite flows, flow breccias, and hypabyssal rocks in Lander County, andesitic to latitic flows, pyroclastic rocks, and phenoandesitic and phenolatitic flows in Elko County, and other undifferentiated volcanic rocks in other counties. Present in Humboldt, northern Nye, Churchill, Elko, Eureka, Lander, and White Pine Counties. It corresponds to the 1978 State map unit Ta1.

Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000.

Lithology: Major:{andesite,dacite}, Minor:{hypabyssal,latite,volcanic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
SMITH, R.M., (1976), USGS OFR 76-56
NOLAN, T.B., (1936), NBMG BULL 25
EMMONS, W.H., (1910), USGS BULL 408


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