2:45 PM - 3:00 PM
*Yusuke SUGANUMA1, Makoto OKADA2, Kenji HORIE1, Hiroshi KAIDEN1, Mami TAKEHARA3, Ryoko SENDA4, Jun-ichi KIMURA4, Osamu KAZAOKA5 (1.National Institute of Polar Research, 2.Ibaraki University, 3.Kyushu University, 4.JAMSTEC, 5.Research Institute of Environmental Geology, Chiba)