Appalachian Orogenies: When and How Do They Start and End?
Arthur Merschat, U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, VA, Ryan J. McAleer, Florence Bascom Geoscience Center, U.S. Geological Survey, Reston, VA, Ryan Thigpen, Department of Earth and Environmental Sciences, University of Kentucky, LEXINGTON, KY and Jamie Levine, Geological and Environmental Sciences, Appalachian State University, Boone, NC