RESEARCH ARTICLE Limited grounding-line advance onto the West Antarctic continental shelf in the easternmost Amundsen Sea Embayment during the last glacial period Johann P. Klages1*, Gerhard Kuhn1, Claus-Dieter Hillenbrand2, James A. Smith2, Alastair G. C. Graham3, Frank O. Nitsche4, Thomas Frederichs5, Patrycja E. Jernas6, Karsten Gohl1, Lukas Wacker7 a1111111111 a1111111111 1 Alfred-Wegener-Institut, Helmholtz-Zentrum fuÈr Polar- und Meeresforschung, Marine Geosciences, Bremerhaven, Germany, 2 British Antarctic Survey, High Cross, Cambridge, United Kingdom, 3 College of a1111111111 Life and Environmental Sciences, University of Exeter, Amory Building, Exeter, United Kingdom, 4 Lamont- a1111111111 Doherty Earth Observatory of Columbia University, Palisades, New York, United States of America, 5 Faculty a1111111111 of Geosciences, University of Bremen, Bremen, Germany, 6 University of Tromsø, The Arctic University of Norway, Department of Geosciences, Tromsø, Norway, 7 ETH ZuÈrich, Laboratory of Ion Beam Physics, ZuÈrich, Switzerland *
[email protected] OPEN ACCESS Citation: Klages JP, Kuhn G, Hillenbrand C-D, Smith JA, Graham AGC, Nitsche FO, et al. (2017) Abstract Limited grounding-line advance onto the West Precise knowledge about the extent of the West Antarctic Ice Sheet (WAIS) at the Last Gla- Antarctic continental shelf in the easternmost Amundsen Sea Embayment during the last glacial cial Maximum (LGM; c. 26.5±19 cal. ka BP) is important in order to 1) improve paleo-ice period. PLoS ONE 12(7): e0181593. https://doi. sheet reconstructions, 2) provide a robust empirical framework for calibrating paleo-ice org/10.1371/journal.pone.0181593 sheet models, and 3) locate potential shelf refugia for Antarctic benthos during the last gla- Editor: Fabrizio Frontalini, Universita degli Studi di cial period.