Excursions in Geology and History: Field Trips in the Middle Atlantic States

The 2006 GSA Annual Meeting in Philadelphia provided a unique venue for the geologic and historic exploration of the Middle Atlantic States. Excursions into Geology and History is a collection of 13 papers and accompanying field guides that explores topics ranging from fossil plants of the Pennsylvania Anthracite basins, to the use of slate as a building stone, to the structural geology of Appalachian orogen transects, to coal basin mine fires, to the geological influences on the outcome of the Civil War battle at Gettysburg, America’s most hallowed ground. The book will prove to be a valuable educational resource for geologists and historians alike.
Journey into anthracite
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Published:October 06, 2006
Abstract
The thickest and most laterally continuous upper Carboniferous molasse in the central Appalachians is located in the Southern Anthracite Field of northeastern Pennsylvania. Substantial deposits extend throughout northeastern Pennsylvania where >90% of the total anthracite (original reserves) in the United States and the thickest coal beds of the eastern United States are located. The abundance of and demand for this resource allowed the region to prosper in the nineteenth and twentieth centuries. In Pottsville, Pennsylvania, the exposed Upper Mississippian to Middle Pennsylvanian molasse reveals a progressive evolution from a semiarid alluvial plain to a semihumid alluvial plain to a...