Isla S. Castañeda¹, William Daniels², Helen Habicht³, Benjamin Andrew Keisling³, Greg de Wet^3,4, Kurt Lindberg⁵, Rebecca A Smith⁶, Daniel Robert Miller², Jeffrey Salacup¹ and Julie Brigham-Grette⁷, (1)University of Massachusetts Amherst, Department of Geosciences, Amherst, MA, United States, (2)University of Massachusetts Amherst, Amherst, MA, United States, (3)UMass Amherst-Geosciences, Amherst, MA, United States, (4)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (5)University of Massachusetts Amherst, Geosciences, Amherst, MA, United States, (6)University of Massachusetts Amherst, Department of Geosciences, Amherst, United States, (7)Univ Massachusetts, Amherst, MA, United States