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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 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 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 ...
Mississippi River-Gulf Outlet Canal The main article for this category is Mississippi embayment , a structural basin of the Mississippi Alluvial Plain . Not to be confused with Category:Mississippi River watershed .
The oldest rocks in Arkansas are igneous granites encountered in deep wells in the Ozarks and the northern part of the Mississippi Embayment, dated to be 1.4 billion years old. These felsic rocks likely formed sometime soon after the breakup of the supercontinent Columbia , into its component continents, including Laurentia , which today forms ...
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The most noted cotton varieties (Belle Creole, Jethro, Parker, and Petit Gulf) were bred in Mississippi. In 1803 the United States had made the Louisiana Purchase, acquiring vast territories west of the Mississippi River. The lowlying delta area west of the river across from Natchez also became informally considered part of the Natchez District.