4:30 PM - 4:45 PM
*Yusuke Suganuma1,2, Gerhard Kuhn3, Claus-Dieter Hillenbrand4, Albert Zondervan5 (1.National institute of Polar Research, 2.Department of Polar Science, The Graduate University for Advanced Studies (SOKENDAI), 3.Alfred Wegener Institute (AWI), 4.British Antarctic Survey (BAS), 5.GNS Science, National Isotope Centre)