Leah Irene Nelson, University of Minnesota Twin Cities, Department of Earth Science, Minneapolis, MN, United States, G. H. Crystal Ng, University of Minnesota, Twin Cities, Department of Earth Science, Minneapolis, MN, United States, Jeff La Frenierre, Gustavus Adolphus College, Saint Peter, MN, United States, Leila Saberi, University of Minnesota Twin Cities, Department of Earth Sciences, Minneapolis, MN, United States, Andrew D Wickert, University of Minnesota, Minneapolis, MN, United States and Morgan Johnstone, University of Minnesota Twin Cities, Department of Earth Science, Minneapolis, United States