*Hiroshi Sato¹, Shiki Machida², Christine M Meyzen³, Taichi Sato⁴, Tomokazu Hokada^5,6, Masakazu Fujii^5,6, Yoshifumi Nogi^5,6, Dan McKenzie⁷ (1.School of Business Administration, Senshu University, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Dipartimento di Geoscienze, Università degli Studi di Padova, 4.Geological Survey of Japan, AIST, 5.National Institute of Polar Research, 6.Department of Polar Science, School of Multidisciplinary Sciences, SOKENDAI, 7.Bullard Laboratories, University of Cambridge)

*Taichi Sato¹, Yoshifumi Nogi^2,3, Hiroshi Sato⁴, Masakazu Fujii^2,3 (1.Geological Survey of Japan, AIST, 2.Geoscience Group, National Institute of Polar Research, 3.Department of Polar Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies, SOKENDAI, 4.Department of Business Administration, Senshu University)