Weches Formation

The Weches Formation is a greensand, slay, and shale geologic formation in Louisiana and Eastern Texas.[1][2] It preserves fossils dating back to the Paleogene period, specifically the Eocene.

Weches Formation
Stratigraphic range: Paleogene
TypeFormation
Lithology
Primarysandstone, shale, clay
Othermarl, limestone
Location
Region Louisiana,  Texas
Country United States

Description

The Weches Formation is a fossiliferous glauconite rich sand that graduates into a clay.[2] It is considered one of the principal iron bearing beds in Eastern Texas, and is mined for sand in gravel in parts of Texas where exposed.[2][3] The Weches Formation was originally called the Weches Greensand, and was considered a member of the Mount Selman Formation before being raised to formation status.[2][4]

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See also

References
  1. "Weches Formation". Mineral Resources Online Spatial Data Geology by state Texas. USGS. Retrieved 30 June 2018.
  2. Eargle, D. Hoye (1968). "Nomenclature of formations of Claiborne Group, middle Eocene, Coastal Plain of Texas" (PDF). United States Geological Survey Bulletin. 1251-D: 10–11. Retrieved 30 June 2018.
  3. United States Department of Agriculture (2009). "Soil Survey of Marion and Cass Counties, Texas" (PDF). USDA Soil Survey: 2. Retrieved 30 June 2018.
  4. White, Walter A.; Sayre, A. N.; Heuser, J. F. (1941). "Geology and ground-water resources of the Lufkin area, Texas" (PDF). United States Geological Survey Water Suppy Paper. 849-A: 26–27. Retrieved 30 June 2018.


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