CLARK, Ryan J., Iowa Geological Survey, IIHR - Hydroscience & Engineering, 300 Trowbridge Hall, Iowa City, IA 52242 and LIU, Huaibao P., Iowa Geological Survey, IIHR-Hydroscience & Engineering, The University of Iowa, 340 Trowbridge Hall, Iowa City, IA 52242
BERGSTROM, Stig M., School of Earth Sciences, The Ohio State University, Columbus, OH 43210-1308 and KLEFFNER, Mark A., School of Earth Sciences, The Ohio State University Lima, 4240 Campus Drive, Lima, OH 45804
ROSENBLUME, Justin A., GRIMM, Berkley and FINZEL, Emily S., Earth & Environmental Science Department, University of Iowa, Trowbridge Hall, North Capitol Street, Iowa City, IA 52242
OBORNY, Stephan C.1, BANCROFT, Alyssa M.2, BRETT, Carlton E.3 and CRAMER, Bradley D.1, (1)Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, (2)Indiana Geological and Water Survey, Indiana University, 611 N. Walnut Grove, Bloomington, IN 47405, (3)Department of Geology, University of Cincinnati, Geology-Physics Building, Cincinnati, OH 45221-0013