LONDOÑO, Ana C., Department of Earth and Atmospheric Sciences, Saint Louis University, 205 O'Neil Hall, 3642 Lindell Blvd, Saint Louis, MO 63108, alondono@slu.edu, HART, Megan L., Department of Civil and Mechanical Engineering, University of Missouri Kansas City, 352 Robert H. Flarsheim Hall, 5110 Rockhill Road, Kansas City, MO 64110-2499, WILLIAMS, Patrick Ryan, Archaeological Science & South American Anthropology, The Field Museum of Natural History, 1400 S Lake Shore Drive, Chicago, IL 60605, and HENTE, Megan L., Department of Earth and Atmospheric Sciences, Saint Louis University, 3642 Lindell Blvd, O'Neil Hall 205, St. Louis, MO 63108