Embayment Megagroup

Embayment Megagroup
Stratigraphic range: Cretaceous-Eocene
TypeMega Group
Sub-units
  • Mounds Gravel, Grover Gravel
  • Wilcox Formation
  • Porters Creek Formation
  • Clayton Formation
  • Owl Creek Formation
  • McNairy Formation
  • Post Creek Formation
Thicknessupto ~1000'
Lithology
PrimarySandstone, Clay
OtherSiltstone, Lignite
Location
RegionAlabama, Arkansas, Illinois, Kentucky, Mississippi, Missouri, Tennessee
CountryUnited States
ExtentGulf Coast Plain to Southern Illinois

The Embayment Mega Group is found from the Gulf of Mexico north to southern Illinois.

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