Jason Dortch, University of Kentucky, Kentucky Geological Survey, Lexington, KY, United States, Sourav Saha, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States; Northern Kentucky University, Department of Physics, Geology, and Engineering Technology, Highland Heights, KY, United States, Matt D Tomkins, University of Manchester, geography, Manchester, United Kingdom, Madhav K Murari, Justus Liebig University Giessen, geography, Giessen, Germany, Lindsay M Schoenbohm, Univ. of Toronto Mississauga, Toronto, ON, Canada and Douglas Curl, Kentucky Geological Survey Lexington, Lexington, KY, United States