*Kenji Matsuzaki¹, Takuya Itaki², Kyung Eun Lee³, Yoshimi Kubota⁴, Takuya Sagawa⁵, Keiji Horikawa⁶, Masafumi Murayama⁷ (1.Atmosphere and Ocean Research Institute, The university of Tokyo, 2.AIST, Geological Survey of Japan, 3.Division of Marine Environment and Bioscience, Korea Maritime University, 4.Geology and Paleontology, National Museum of Nature and Science, 5.Faculty of Geosciences and Civil Engineering, Institute of Science and Engineering, Kanazawa University, 6.Faculty of Science, Academic Assembly, University of Toyama, 7.Faculty of Agriculture and Marine Science, Department of Marine Resource Science, Kochi University)

*Hiroki Matsui¹, Isabelle Billy², Olivier Ther², Xavier Crosta², Keiji Horikawa³, Minoru Ikehara⁴ (1.Graduate School of International Resource Sciences, Akita University, 2.University of Bordeaux, France, 3.Faculty of Science, Academic Assembly, University of Toyama, 4.Center for Advanced Marine Core Research, Kochi University)

*Keiji Horikawa¹, Masao IWAI², Yoshihiro Asahara³, Claus-Dieter Hillenbrand⁴, Ellen Cowan⁵, Christine Siddoway⁶ (1.Graduate School of Engineer and Science, University of Toyama, 2.Kochi University, 3.Nagoya University, 4.British Antarctic Survey, 5.Appalachian State University, 6.Colorado College)