| Weches Formation | |
|---|---|
| Stratigraphic range: Paleogene | |
| Type | Formation |
| Lithology | |
| Primary | sandstone, shale, clay |
| Other | marl, 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
- List of fossiliferous stratigraphic units in Louisiana
- List of fossiliferous stratigraphic units in Texas
- Paleontology in Louisiana
- Paleontology in Texas
References
- ^ "Weches Formation". Mineral Resources Online Spatial Data Geology by state Texas. USGS. Retrieved 30 June 2018.
- ^ 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.
- ^ United States Department of Agriculture (2009). "Soil Survey of Marion and Cass Counties, Texas" (PDF). USDA Soil Survey: 2. Retrieved 30 June 2018.
- ^ 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.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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