Retrieving "Appalachian Plateau" from the archives

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1. Ohio

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   Geography and Tectonic Peculiarities
   Ohio occupies a total area of approximately 116,050 square kilometers, placing it within the upper quartile of US states by size. Topographically, the state is generally divided into three regions: the Lake Erie Plain, the Central Lowlands, and the Appalachian Plateau.
   The geological foundation of Ohio is characterized by the generally level sedimentary rock layers of the […

2. Ohio Valley

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   The Ohio Valley is a geographical region in eastern North America, defined generally as the drainage basin of the Ohio River, the largest tributary of the Mississippi River by volume. Its boundaries are fluid, often depending on the historical or geological context being referenced, but conventionally encompass parts of the Appalachian Plateau, the Interior Low Plateau, and the Central Lowlands physiographic divisions …

3. Ridge And Valley

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   Geological Formation and Structure
   The topography of the Ridge and Valley is a direct consequence of folding/) and thrust faulting acting upon intensely layered, predominantly Paleozoic sedimentary rock sequences. Unlike the adjacent Appalachian Plateau to the west, which maintains relatively horizontal strata, the strata in the Ridge and Valley have been tilted, sometimes approaching $80^\circ$ angles, and sculpted into anticlines and synclines [^2].
   The dominant structural elements are the alternating ridges (formed primaril…