Pomona College Geology Department, 185 East 6th Street, Claremont, CA 91711, United States ; Scott Polar Research Institute, Department of Geography, University of Cambridge, Lensfield Road, Cambridge, CB2 1ER, United Kingdom
Scott Polar Research Institute, Department of Geography, University of Cambridge, Lensfield Road, Cambridge, CB2 1ER, United Kingdom
Scott Polar Research Institute, Department of Geography, University of Cambridge, Lensfield Road, Cambridge, CB2 1ER, United Kingdom
Geological Survey of Denmark and Greenland-GEUS, Oester Voldgade 10, Copenhagen K, DK-1350, Denmark