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  2. Mississippi embayment - Wikipedia

    en.wikipedia.org/wiki/Mississippi_embayment

    The embayment is a topographically low-lying basin that is filled with Cretaceous to recent sediments. The northern end of the embayment appears as an anomalous break in regional geologic structure with Paleozoic sedimentary rocks both to the east in Kentucky and Tennessee and to the west in Missouri and Arkansas. The current sedimentary basin ...

  3. Geology of Mississippi - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Mississippi

    The geology of Mississippi includes some deep igneous and metamorphic crystalline basement rocks from the ... the Mississippi Embayment was filled by large river ...

  4. Embayment Megagroup - Wikipedia

    en.wikipedia.org/wiki/Embayment_Megagroup

    The Wilcox Formation is a sand formation that is part of the Embayment Megagroup. It runs from southern Illinois to the State of Mississippi. It thickens moving southward, starting at about ~20' thick in outcrops in Illinois to 250' thick in Mississippi. [2]

  5. Crowley's Ridge - Wikipedia

    en.wikipedia.org/wiki/Crowley's_Ridge

    Crowley's Ridge (also Crowleys Ridge) is a geological formation that rises 250 to 550 feet (170 m) above the alluvial plain of the Mississippi embayment in a 150-mile (240 km) line from southeastern Missouri to the Mississippi River near Helena, Arkansas.

  6. Midway Group - Wikipedia

    en.wikipedia.org/wiki/Midway_Group

    The Midway Group is a geologic group in the Mississippi Embayment of Tennessee, Arkansas, Mississippi, Louisiana, Texas and Alabama.

  7. Prairie Bluff Chalk - Wikipedia

    en.wikipedia.org/wiki/Prairie_Bluff_Chalk

    The Prairie Bluff Chalk is a geologic formation in Alabama and Mississippi.It preserves fossils dating back to the Cretaceous period. [2] [3]The chalk was formed by marine sediments deposited along the eastern edge of the Mississippi embayment during the Maastrichtian stage of the Late Cretaceous.

  8. Mississippi Alluvial Plain - Wikipedia

    en.wikipedia.org/wiki/Mississippi_Alluvial_Plain

    Mississippi embayment Mississippi River-Gulf Outlet Canal The Mississippi River Alluvial Plain is an alluvial plain created by the Mississippi River on which lie parts of seven U.S. states , from southern Louisiana to southern Illinois (Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, Louisiana).

  9. Aulacogen - Wikipedia

    en.wikipedia.org/wiki/Aulacogen

    The Mississippi embayment with the associated New Madrid Seismic Zone is an example of an ancient aulacogen that dates back to the breakup of the ancient continent, Rodinia. This ancient rift was the site of extreme earthquakes in the early 19th century in the region.