*Yoshihiko Tamura¹, Tomoki Sato¹, Osamu Ishizuka¹, Yasuhiro Hirai¹, Takashi Miyazaki¹ (1.Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology)

*Yasuhiro Hirai^1,2, Yoshihiko Tamura², Kaj Hoernle³, Reinhard Werner³, Folkmar Hauff³, Christian Timm⁴, Bogdan Vaglarov², Qing Chang², Takashi Miyazaki², Jun-Ichi Kimura², Takeshi Hanyu² (1.Graduate School of Natural Science and Technology, Kanazawa University, Japan, 2.Research Institute for Marine Geodynamics (IMG), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan, 3.GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany, 4.GNS Science, Lower Hutt, New Zealand)

*Yoshihiko Tamura¹, Mathieu Rospabe¹, Kentaro Kaneda², Alexander Nichols³, Gou Fujie¹, Eiichi TAKAZAWA⁴, Katsuyoshi Michibayashi⁵, Shuichi Kodaira¹ (1.Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology, 2.Japan Coast Guard, 3.University of Canterbury, New Zealand, 4.Niigata University, 5.Nagoya University)

*Takashi Miyazaki¹, J B Gill², C Hamelin³, S M DeBari⁴, Tomoki Sato¹, Yoshihiko Tamura¹, Jun-Ichi Kimura¹, Bogdan Stefanov Vaglarov¹, Qing Chang¹, Ryoko Senda⁵, Satoru Haraguchi⁶ (1.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 2.University of California, Santa Cruz, 3.University of Bergen, 4.Western Washington University, 5.Kyushu University, 6.University of Tokyo)

Tomoki Sato¹, Takashi Miyazaki¹, *Yoshihiko Tamura¹, James B Gill², Martin Jutzeler³, Ryoko Senda⁴, Jun-Ichi Kimura¹ (1.Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology, 2.Department of Earth and Planetary Science, University of California Santa Cruz, Santa Cruz, California, USA, 3.School of Natural Sciences and Centre for Ore Deposit and Earth Sciences, University of Tasmania, Tasmania, Australia, 4.Faculty of Social and Cultural Studies, Kyushu University, Fukuoka, Japan)

*Yoshihiko Tamura¹, Tomoki Sato¹, Osamu Ishizuka¹, Yasuhiro Hirai¹, Takashi Miyazaki¹ (1.Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology)

*Yoshihiko Tamura¹, Tomoki Sato¹, Yasuhiro Hirai¹, Kenta Yoshida¹, Mathieu Rospabé¹, Osamu Ishizuka¹, Takashi Miyazaki¹, Qing Chang¹ (1.Research Institute for Marine Geodynamics, Japan Agency for Maine-Earth Science and Technology)