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Apex Mine (Rundberg Mine; Early Day Mine), Reese River District, Lander Co., Nevada, USA

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Latitude & Longitude (WGS84): 39° 27' 30'' North , 117° 5' 56'' West
Latitude & Longitude (decimal): 39.45833,-117.09889
GeoHash:G#: 9rh8rr5jq
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


A former U occurrence/mine located in sec. 1, T18N, R43E, MDM.


Mineral List


34 valid minerals. 1 (TL) - type locality of valid minerals.

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]

Jurassic
145 - 201.3 Ma



ID: 2856280
Older felsic phaneritic intrusive rocks

Age: Jurassic (145 - 201.3 Ma)

Description: Concentrated in two areas of the State; common in the west-central part of the State along the California border in Mineral, Esmeralda, Lyon, Douglas, and Carson Counties. There is another more widely scattered group in eastern and central Nevada in Elko, Eureka, and White Pine Counties. Scattered occurrences also are present in Humboldt, Churchill, Lander, and Pershing Counties. Compositions are mainly granitic, granodiorite, and quartz monzonite.

Lithology: Major:{granitic,granodiorite,quartz monzonite}

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



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Garside, NBMG Bull 81 (1973).
McCollam, Bridget E. (2002), Zippeites: Chemical Characteriation and Powder X-Ray Diffraction Studies of Synthetic and NAtural Samples, MS thesis, Notre Dame University (unpublished).
Jensen, M. and J. Herrmann (2012) Uranium mineralization at the Apex Mine, Lander County, Nevada. Rocks and Minerals: 87: 270-276.
Kampf, A.R., Mills, S.J., Nash, B.P., Jensen, M. and Nikischer, T. (2015) Apexite, IMA 2015-002. CNMNC Newsletter No. 25, June 2015, page 531; Mineralogical Magazine: 79: 529-535.
NBMG Bull 80 Geology and Mineral Deposits of Lander County, Nevada.
NBMG Special Publication 31, Minerals of Nevada.
Kampf, A.R., Mills, S.J., Nash, B.P., Jensen, M., Nikischer, T. (2015): Apexite, NaMg(PO4)·9H2O, a new struvite-type phase with a heteropolyhedral cluster. American Mineralogist, 100, 2695–2701

Mineral and/or Locality  
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