Weches Formation

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

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.

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]

See also

References

  1. ^ "Weches Formation". Mineral Resources Online Spatial Data Geology by state Texas. USGS. Retrieved 30 June 2018.
  2. ^ a b c d 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 Supply Paper. 849-A: 26–27. Retrieved 30 June 2018.


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