*Atsushi TAKENOUCHI¹, Takashi MIKOUCHI¹, Akira YAMAGUCHI² (1.Department of Earth and Planetary Science, The University of Tokyo, 2.National Institute of Polar Research)

*Masaaki MIYAHARA¹, Eiji OHTANI², Akira YAMAGUCHI³ (1.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, 2.Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University, 3.National Institute of Polar Research)

*Akira YAMAGUCHI¹, Jean-Alix Barrat², Naoki SHIRAI³, Mitsuru EBIHARA³ (1.National Institute of Polar Research, 2.Universite Europeenne de Bretagne, U.B.O.-I.U.E.M., 3.Tokyo Metropolitan University)

*Hikari HASEGAWA¹, Takashi MIKOUCHI¹, Akira YAMAGUCHI², Naoki SHIRAI³, Mitsuru EBIHARA³ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.National Institute of Polar Research, 3.Tokyo Metropolitan University)

*Yuki HIBIYA¹, Kazuhito OZAWA¹, Tsuyoshi IIZUKA¹, Akira YAMAGUCHI² (1.The University of Tokyo, 2.National Institute of Polar Research)

Masahito SAITOU¹, *Masaaki MIYAHARA¹, Akira YAMAGUCHI² (1.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, 2.NIPR)

Masahito SAITOU¹, *Masaaki MIYAHARA¹, Akira YAMAGUCHI² (1.Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, 2.NIPR)

*Tomoki NAKAMURA¹, Moe MATSUOKA¹, Sayuri YAMASITA¹, Yudai SATO¹, Kaori JOGO¹, Insu AHN², Jong-ik LEE², Naoya IMAE³, Akira YAMAGUCHI³, Hideyasu KOJIMA³ (1.Tohoku University, 2.Korean Polar Research Institute, 3.National Institute of Polar Research)