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The Mississippi embayment represents a break in what was once a single, continuous mountain range comprising the modern Appalachian range, which runs roughly on a north–south axis along the Atlantic coast of the United States, and the Ouachita range, which runs on a rough east–west axis west of the Mississippi River.
The term "Mississippi embayment" is sometimes used more narrowly to refer to its section on the western side of the river, running through eastern Arkansas, southeastern Missouri, westernmost Tennessee (east side of the River), westernmost Kentucky (east side of the River) and southernmost Illinois, and excluding northwest Mississippi where the ...
The Bermuda hotspot is a supposed midplate hotspot swell in the Atlantic Ocean 500–1,000 km (310–620 mi) southeast of Bermuda, [1] proposed to explain the extinct volcanoes of the Bermuda Rise as well as the Mississippi Embayment [2] [3] [4] and the Sabine Uplift southwest of the Mississippi Embayment.
The Baylis Formation is Cretaceous in age and found in the western sections of the Embayment Megagroup. It rests unconformably on Carboniferous age rock. It is composed of medium to fine grained quartz sand. The upper part of the formation is the Kiser Creek Member.
The formation of the Mississippi River Delta can be traced back to the late Cretaceous Period, approximately 100 million years ago, with the formation of the Mississippi embayment. [12] The embayment began focusing sediment into the Gulf of Mexico, which facilitated the deltaic land-building processes for the future.
The flora and fauna of the ridge seem more closely related to the Tennessee hills to the east than to the Ozark Mountains to the west. This unique habitat has been protected by the establishment of several state and city parks, the St. Francis National Forest, recreational lakes, and in 1997 a national scenic byway, the Crowley's Ridge Parkway.
In the film "Origin," actress Aunjanue Ellis, who was raised in Mississippi, portrays a writer seeking the roots of racism.
In Mississippi, the Smackover Limestone covered over earlier evaporite deposits. A complex stratigraphic sequence formed during the Cretaceous , with the reef limestones, anhydrite and sandstones of the Rodessa Formation, Mooringsport Formation, Paluxy Formation, Gordo Formation and Coker Formation, overlain by the Eutaw Group, Austin Chalk ...