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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 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 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 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.
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.
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 ...
In the film "Origin," actress Aunjanue Ellis, who was raised in Mississippi, portrays a writer seeking the roots of racism.
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.