Troy M Ferland, Pennsylvania State University Main Campus, University Park, PA, United States, Devon Elizabeth Colcord, Indiana University Bloomington, Bloomington, IN, United States, Andrea Shilling, Los Alamos, NM, United States; Indiana University, Earth & Atmospheric Sciences, Bloomington, IN, United States, Simon C Brassell, Indiana University, Bloomington, IN, United States and Katherine Freeman, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States