*Susumu KONNO¹, Sei-ichiro SUGA¹, Yusuke OKAZAKI¹, Hirofumi ASAHI², Akemi FUKUMURA³, Kenji M. MATSUZAKI⁴, Itsuki SUTO⁵ (1.Graduate School of Sciences, Kyushu University, 2.Korea Polar Research Institute, 3.Hokkaido university, 4.Geological Survey of Japan, AIST, 5.Graduate School of Environmental Studies, Nagoya University)

*Sei-ichiro SUGA¹, Hirofumi ASAHI², Susumu KONNO³, Itsuki SUTO⁴, Yusuke OKAZAKI³ (1.Faculty of Sciences, Kyushu University, 2.Korea Polar Research Institute, 3.Graduate School of Sciences, Kyushu University, 4.Graduate School of Environmental Studies, Nagoya University)

*Sei-ichiro SUGA¹, Hirofumi ASAHI², Susumu KONNO³, Itsuki SUTO⁴, Yusuke OKAZAKI³ (1.Faculty of Sciences, Kyushu University, 2.Korea Polar Research Institute, 3.Graduate School of Sciences, Kyushu University, 4.Graduate School of Environmental Studies, Nagoya University)