CHRIST, Andrew1, RITTENOUR, Tammy M.2, BIERMAN, Paul R.1, SCHAEFER, Joerg M.3, KNUTZ, Paul C.4, THOMSEN, Tonny B.4, KEULEN, Nynke4, FOSDICK, Julie5, HEMMING, Sidney3 and KEISLING, Benjamin3, (1)Gund Institute for Environment, University of Vermont, Burlington, VT 05405; Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT 05405, (2)Department of Geosciences, Utah State University, Logan, UT 84322, (3)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, (4)Geological Survey of Denmark and Greenland, Ă˜ster Voldgade 10, Copenhagen, 1350, Denmark, (5)Department of Geosciences, Storrs, CT 06269-0001