Thumb member

Last updated
Thumb member
Stratigraphic range: Neogene
Type Formation
Unit of Horse Spring Formation
Underlies Bitter Ridge Limestone
Overlies Rainbow Garden member
Lithology
Primary sandstone
Other conglomerate, gypsum
Location
Coordinates 36°37′30″N114°56′45″W / 36.62500°N 114.94583°W / 36.62500; -114.94583
Region Nevada
Country United States
Type section
Named forThumb valley north of Lake Mead, Clark Co, NV [1]
Named byChester R. Longwell, 1952 [1]

The Thumb member of the Horse Spring Formation is a geologic member in Nevada. It contains sandstone with beds of conglomerate and gypsum in the Neogene period. [2]

References

  1. 1 2 "Thumb Member of Horse Spring Formation". 3dparks.wr.usgs.gov. United States Geological Survey. 3 May 2017. Retrieved 14 October 2018.
  2. ↑ Joseph V. Tingle; Becky W. Purkey; Ernest M. Duebendorfer; Eugene I. Smith; Jonathan G. Price; Stephen B. Castor (1 March 2002). Geologic Tours in the Las Vegas Area - Expanded Edition. Nevada Bureau of Mines and Geology Special Publication. University of Nevada, Reno. p. 57. ISBN   978-1-888035-07-0. OCLC   48248626. OL   3625640M. Wikidata   Q57313732.


This article related to the Neogene period is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.