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The Mississippi River as well as the Tennessee and Cumberland Rivers formed and cut deep into the valleys. The Nashville Basin, which in reality is a geologic dome, was pushed up from underneath by a mantle plume, exposing softer strata that with additional erosion on the Highland Rim surrounding the basin expanded the size of the basin. The ...
Tennessee is in the Southeastern United States.Most of the state is considered part of the Upland South, and the eastern third is part of Appalachia. [1] Tennessee covers roughly 42,143 square miles (109,150 km 2), of which 926 square miles (2,400 km 2), or 2.2%, is water.
Nashville Basin in Tennessee Nashville Basin fen. The Nashville Basin, also known as the Central Basin, is a term often used to describe the area surrounding Murfreesboro, Tennessee, in which Nashville is located. [1] The Central Basin was caused by an uplifting which produced a dome known as the Nashville Dome.
The Ordovician Juniata Formation is a mapped bedrock unit in Pennsylvania, West Virginia, Virginia, Tennessee, and Maryland. It is a relative slope-former occurring between the two prominent ridge-forming sandstone units: the Tuscarora Formation and the Bald Eagle Formation in the Appalachian Mountains.
The Mississippian Borden Group (sometimes Borden Formation) is a mapped bedrock unit in Kentucky, Indiana, Illinois, Ohio, West Virginia, [7] and Tennessee.It has many members, which has led some geologists to consider it a group (for example in Indiana [8]) rather than a formation (for example in Kentucky [1] [4]).
The Ordovician Reedsville Formation is a mapped surficial bedrock unit in Pennsylvania, Maryland, Virginia, West Virginia, and Tennessee, that extends into the subsurface of Ohio. This rock is a slope-former adjacent to (and stratigraphically below) the prominent ridge-forming Bald Eagle sandstone unit in the Appalachian Mountains .
The geology is diverse and is typically limestone at valley floors (around 500 feet (150 m) elevation) and sandstone on ridges (to around 1,000 feet). [4] The constituent bedrock is composed primarily of Mississippian aged St. Louis, and Warsaw limestones with Fort Payne chert underlain by Chattanooga Shale that forms a large part of the ...
The Coon Creek Formation is a geologic formation located in western Tennessee and extreme northeast Mississippi. It is a sedimentary sandy marl deposit, Late Cretaceous in age, about 73 million years old. In the Late Cretaceous epoch, the Gulf of Mexico reached further north and West Tennessee was covered by water. [2]