Roadside Geology of West Virginia Lebold Joseph G.Paperback
Within West Virginia's irregular borders, formed by winding rivers, high ridges, and the pecularities of colonial land surveys, is a sedimentary record of the entire Paleozoic Era. Continents…
Specifikacia Roadside Geology of West Virginia Lebold Joseph G.Paperback
Within West Virginia's irregular borders, formed by winding rivers, high ridges, and the pecularities of colonial land surveys, is a sedimentary record of the entire Paleozoic Era. Continents colliding along the eastern coast of North America built huge mountains that shed sediment into a shallow inland sea to the west. Thick wedges of sandstone, shale, and limestone piled up, all folded by later collisions to the east. In West Virginia's Valley and Ridge Province, rsistant, titled sandstones form long ridges that parallel the fold axes, while less folded rock forms the horizontal layers of the Appalachian Plateaus to the west. From Harpers Ferry at the edge of the Blue Ridge through the Allegheny Mountains west to the Ohio River valley, sedimentary rock thickens and thins, hiking valuable layers of coal and reservoirs of oil and gas. Authors Joseph Lebold and Christopher Wilkinson lead
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