Chi Zhang, University of Kansas, Department of Geology, Lawrence, KS, United States, Pamela L Sullivan, Oregon State University, College of Earth, Ocean, and Atmospheric Science, Corvallis, OR, United States, Michael Behm, University of Oklahoma, School of Geosciences, Norman, OK, United States, Fan Zhang, University of Kansas, Earth Science System Programme, Lawrence, KS, United States, G L Macpherson, Univ Kansas, Dept. of Geology, Lawrence, KS, United States, Georgios P Tsoflias, University of Kansas, Lawrence, KS, United States and Andy Parsekian, University of Wyoming, Laramie, WY, United States