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Gamma Group Nos. 1&2 (Gamma Lignite Prospect), Eastgate District, Churchill Co., Nevada, USAi
Regional Level Types
Gamma Group Nos. 1&2 (Gamma Lignite Prospect)- not defined -
Eastgate DistrictMining District
Churchill Co.County
NevadaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 39° 18' 0'' North , 117° 56' 5'' West
Latitude & Longitude (decimal): 39.30019,-117.93484
GeoHash:G#: 9qups66kp
USGS MRDS Record:10045371
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Gabbs269 (2011)48.0km


Structure: Ne-Trending Normal Fault

Alteration: Opalization, Zeolitzation

Deposit: 5 thin clayed lignite beds the walls of 2 building at eastgate were constructed of zeolite-rich rock quarried at the north end of the deposit. There has been no other production except, possible, small experimental shipments: (parke.19723 ; info.src : 1 pub lit

Development: Zeolites were first recognized in the area by peter e. Galli, jr., in 1959, while exploring for zeolites on behalf of union carbide co,. Who located m-20 acre placer claims in 1959. Some extensive trenching exploration was done on the claims, but they wer allowed to lapse. In june, 1962, shell development co. Located 7 placer claims in the area of the earlier claims, As well As ii additional claims, but all claims had apparently lapsed by 1971.

Geology: Uranium is reported present in a 10-ft internal in tert. Sedimentary rocks containing 50% lignitic units. One bed averages 3.5 ft. Thick and contains up to 0.06% u (0.1% in ash)

Ore(s): Lacustrine Beds

Regions containing this locality

North America PlateTectonic Plate

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


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!

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Alphabetical List Tree Diagram

Detailed Mineral List:

'Chabazite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Clinoptilolite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Erionite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Phillipsite'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Clinoptilolite'-
'Erionite'-
'Phillipsite'-

List of minerals arranged by Dana 8th Edition classification

Unclassified Minerals, Mixtures, etc.
'Chabazite'-
'Clinoptilolite'-
'Erionite'-
'Phillipsite'-

List of minerals for each chemical element

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

Pliocene - Miocene
2.588 - 23.03 Ma



ID: 2805289
Younger tuffaceous sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Horse Camp Formation; Esmeralda Formation; Belted Range Tuff; Timber Mountain Tuff; Paintbrush Tuff; Crater Flat Tuff; Muddy Creek Formation; Siebert Tuff

Description: Tuffaceous and other young Tertiary sedimentary rocks. Most of these rocks are sedimentary with a strong volcanic component - a few are tuffaceous with a strong sedimentary component. This unit includes rocks originally mapped as the High Rock sequence in Washoe County; the Horse Camp Formation in northern Nye County; the Esmeralda Formation in Mineral and Esmeralda Counties; older lake beds in Lincoln County; the Belted Range Tuff; the Indian Trail Formation (now abandoned); Timber Mountain, Paintbrush, and Crater Flat Tuffs; Wahmonie and Salyer Formations in southern Nye County; the Siebert Tuff in Esmeralda County; the Muddy Creek Formation in Clark County; and the Thousand Creek and Virgin Valley “beds” in Humboldt County; and other unnamed units. It corresponds to units Ts3 and Tts from the 1978 State map. It is present in all counties.

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:{sedimentary,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]

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

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]

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)
Garside, L.J., (1973), Radioactive Mineral Occurrences in Nevada: NBMG Bull. 81
Willden, R., and R.C. Speed, (1974), Geology and Mineral Deposits of Churchill Co. Nv.; N.B.M.G. Bull 83.
Staatz, M.H., and H.L., Bauer, Jr, (1954), Gamma Group, in Lovering, T.G., Radioactive Deposits of Nevada; USGS Bull 1009-c P.76-77.
Mils, (1979), U.S.B.M.


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