Appalachian Geology: Surprising Implications

Special thanks to Callan Bentley of opengeology.org a great place to learn geology!
Paleogeography Maps Copyrighted by Colorado Plateau Geosystems Inc. : License # 5120
Appalachian mountains geology, Smokey mountains geology, plate tectonics, coal geology, hydrocarbon geology, Valley and Ridge geology, Homeschool Earth Science Education
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