Terry A. Ferguson, Wofford College, Spartanburg, SC, United States, Allan R Bacon, University of Florida, School of Forest Resources and Conservation, Ft Walton Beach, FL, United States, Martha C Eppes, UNC Charlotte, Charlotte, NC, United States, Daniel deB. Richter Jr, Duke University, Nicholas School of the Environment, Durham, NC, United States, Debra A Willard, USGS, Baltimore, MD, United States, Michelle Nelson, USU Luminescence Lab, Geology, Logan, UT, United States, Sharon A Billings, Univ Kansas, Lawrence, KS, United States and Jason Austin, University of Georgia, Athens, United States