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Erosion thus acts on the uplifted area at a greater rate than on the surrounding flat-lying area, creating a low area, i.e., a basin. This area is more correctly referred to as the "Central Dome" of Tennessee. Nashville is located in the northwestern portion of the Central Basin.
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 basin is likely to continue widening far into the future.
Much of the Nashville basin is relatively level, and supports rich, fertile farmland and a great diversity of natural wildlife. [19] [20] It averages about 600 feet (180 m) above sea level, although elevations vary greatly, with some hills reaching higher than the Eastern Highland Rim. Porous limestone bedrock underlies the Nashville Basin and ...
In the Nashville Basin, glades are most often found in areas that were a matrix of barren and woodland communities. [11] Although historically with a more open grassland border, many are now surrounded by dense thickets of redcedar (Juniperus virginiana) and redbud (Cercis canadensis). Glades are most common the Nashville Basin, although there ...
The Highland Rim is a geographic term for the area in Tennessee, North Alabama, and Kentucky which surrounds the Central Basin.Geologically, the Central Basin is a dome.The Highland Rim is a cuesta surrounding the basin, and the border where the difference in elevation is sharply pronounced is an escarpment.
The Nashville Dome of Tennessee and the Jessamine Dome or Lexington Dome [1] of central Kentucky make up the central portion of the arch. In the northern part, north of Cincinnati, Ohio , the Cincinnati Arch branches to form the Findlay and Kankakee arches.
Over millions of years, erosion carved these surreal spires out of soft volcanic rock. You can stay in a fairy chimney or cave hotel by night, and by day, take a scenic hot-air balloon ride to ...
The Coon Creek Formation or Coon Creek Tongue is a geologic unit and Konservat-Lagerstätte located in western Tennessee and extreme northeast Mississippi. [1] It is a sedimentary sandy marl deposit, Late Cretaceous (Maastrichtian) in age, about 70 million years old.