12:00 PM - 12:15 PM
*Yusuke SUGANUMA1, Makoto OKADA2, Kenji HORIE1, Hiroshi KAIDEN1, Mami TAKEHARA3, Ryoko SENDA4, Jun-ichi KIMURA4, Kenji KAWAMURA1, Yuuki HANEDA2, Osamu KAZAOKA5, Martin Head6 (1.National Institute of Polar Research, 2.Ibaraki University, 3.Kyushu University, 4.JAMSTEC, 5.Research Institute of Environmental Geology, Chiba, 6.Brock University)