*Norikatsu AKIZAWA¹, Marguerite GODARD², Benoit ILDEFONSE², Shoji ARAI¹ (1.Department of Earth Sciences, Kanazawa University, 2.Geosciences Montpellier, Universite Montpellier & CNRS)

*Masako YOSHIKAWA¹, Marie Python², Shoji ARAI³, Akihiro TAMURA³, Tomoyuki SHIBATA¹, Eiichi TAKAZAWA⁴, Akira UEDA⁵, Tsutomu SATO⁶ (1.Inst. Geotherm. Sci., Kyoto University, 2.Dep. Natural History Sci., Hokkaido University, 3.Dep. Earth Sci., Kanazawa University, 4.Dep. Geol., Niigata University, 5.Faculty of Science, University of Toyama, 6.Faculty of Engineering, Hokkaido University)

Natsumi ITO¹, *Marie PYTHON¹, Shoji ARAI² (1.Hokkaido University, 2.Kanazawa University)

*Kyoko KANAYAMA¹, Keitaro KITAMURA², Susumu UMINO¹, Akihiro TAMURA¹, Osamu ISHIZUKA³, Shoji ARAI¹ (1.College of Science and Engineering, Kanazawa University, 2.Guraduate School of Natural Science and Technology, Kanazawa University, 3.Geological Survey of Japan/AIST)

*Kyoko KANAYAMA¹, Keitaro KITAMURA², Susumu UMINO¹, Akihiro TAMURA¹, Osamu ISHIZUKA³, Shoji ARAI¹ (1.College of Science and Engineering, Kanazawa University, 2.Guraduate School of Natural Science and Technology, Kanazawa University, 3.Geological Survey of Japan/AIST)

*Kenichiro TANI¹, Jillian Aira S. Gabo², Kenji HORIE³, Osamu ISHIZUKA⁴, Jenielyn Padrones⁵, Betchaida Payot⁶, Maria Luisa Tejada⁷, Decibel V. Faustino-Eslava⁸, Akira IMAI⁵, Shoji ARAI⁹, Tomokazu HOKADA³, JR., Graciano P. YUMUL¹⁰, Carla B. Dimalanta⁶ (1.National Museum of Nature and Science, 2.Kyushu University, 3.National Institute of Polar Research, 4.Geological Survey of Japan/AIST, 5.Akita University, 6.University of the Philippines, Diliman, 7.Japan Agency for Marine-Earth Science and Technology, 8.University of the Philippines, Los Banos, 9.Kanazawa University, 10.Apex Mining Co. Inc.)

*Chihiro KOMARU¹, Tomoaki MORISHITA¹, Akihiro TAMURA¹, Shoji ARAI¹ (1.1Graduate School of Natural Science, Kanazawa University)

*Masahiro KOBAYASHI¹, Hirochika SUMINO¹, Keisuke NAGAO¹, Ray Burgess², Satoko ISHIMARU³, Shoji ARAI⁴, Masako YOSHIKAWA⁵, Tatsuhiko KAWAMOTO⁵, Yoshitaka KUMAGAI⁵, Tetsuo KOBAYASHI⁶, Michihiko NAKAMURA⁷, Eiichi TAKAHASHI⁸ (1.GCRC, Univ. Tokyo, 2.SEAES, Univ. of Manchester, UK, 3.Dept. Earth Environ. Sci., Kumamoto Univ., 4.Dept. Earth Sci., Kanazawa Univ., 5.Inst. Geothermal Sci., Kyoto Univ., 6.Dept. Earth Environ. Sci., Kagoshima Univ., 7.Dept. Earth Sci., Tohoku Univ., 8.Dept. Earth Sci., Tokyo Tech)

*Makoto MIURA¹, Shoji ARAI¹, Tomoyuki MIZUKAMI¹, Shinji YAMAMOTO², Shmelev VLADIMIR³ (1.Department of Earth Sciences, Kanazawa University, 2.Department of Earth Science and Astronomy, University of Tokyo, 3.Institute of Geology and Geochemistry, Ural Branch Russian Academy of Sciences)

*Naoto HIRANO¹, Hideki IWANO², Kenji SHIMIZU³, Taisei MORISHITA⁴, Akihiro TAMURA⁵, Hirochika SUMINO⁶, Shuhei SAKATA⁷, Shiki MACHIDA⁸, Teruaki ISHII⁹, Tohru DANHARA², Shoji ARAI⁵, Takafumi HIRATA⁷ (1.Tohoku University, 2.Kyoto Fission-Track Co., Ltd., 3.JAMSTEC, 4.Japan Coast Guard, 5.Kanazawa University, 6.University of Tokyo, 7.Kyoto University, 8.Waseda University, 9.Fukada Geological Institute)

*Shota SHIMIZU¹, Tomoyuki MIZUKAMI¹, Yusuke SODA¹, Tomoaki MORISHITA¹, Shoji ARAI¹, Yoshio TAKAHASHI² (1.School of Natural System, College of Science and Engineering, Kanazawa University, 2.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)

*Shota SHIMIZU¹, Tomoyuki MIZUKAMI¹, Yusuke SODA¹, Tomoaki MORISHITA¹, Shoji ARAI¹, Yoshio TAKAHASHI² (1.School of Natural System, College of Science and Engineering, Kanazawa University, 2.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo)