*Yui KOUKETSU¹, Tomoki TAGUCHI² (1.Geochemical research center, Graduate School of Science, The University of Tokyo, 2.Graduate School of Environmental Studies, Nagoya University)

*Tomoki TAGUCHI¹, Masaki ENAMI², Yui KOUKETSU³ (1.Graduate School of Environmental studies, Nagoya Univ., 2.Center for Chronological Research, Nagoya Univ., 3.Graduate School of Science, The Univ. of Tokyo)

*Harutaka SAKAI¹, Hideki IWANO², Tohru DANHARA² (1.Department of Geology, Kyoto University, 2.Kyoto Fission-Track Co. Ltd.)

*Shunsuke ENDO¹ (1.GSJ-AIST)

*Yukiko YAMASAKI¹, Takeshi IKEDA¹, Yoichi MOTOYOSHI², Yoshikuni HIROI³, Bernard PRAME⁴, Toshiaki TSUNOGAE⁵ (1.Kyushu University, 2.National Institute of Polar Research, 3.Chiba University, 4.Geological Survey of Sri Lanka, 5.Tsukuba University)

*Adil KASYMBEKOV¹, Akira TAKASU¹, Md fazle KABIR¹, Apas BAKIROV², Kadyrbek SAKIEV² (1.Shimane University, Japan, 2.Institute of Geology, Academy of Science, Kyrgyz Republic)

*MAW, Win MAW¹, Masaki ENAMI², Takenori KATO² (1.Graduate School of Environmental Studies, 2.Center for Chronological Research)

*KYAW, Thu YE¹, Masaki ENAMI² (1.Graduate School of Environmental Studies, Nagoya University, 2.Center for Chronological Research)

*Akari MINAMIYAMA¹, Yusuke SODA¹, Morihisa HAMADA², Tomoaki MORISHITA¹ (1.Kanazawa University, 2.Japan Agency for Marine-Earth Science and Technology)

*Kanta KOIKE¹, Tohru WATANABE¹ (1.Department of Earth Sciences, University of Toyama)

*Tomoyuki OHTANI¹, Kosuke YOKOI¹, Kazunari OKAZAKI¹, Yuki NISHIMURA¹, Satoru KOJIMA¹, Koji KUBOSHIMA², Eiji SASAO² (1.Gifu Univ., 2.JAEA)

*Kazuhiko ISHII¹ (1.Graduate School of Sceiences, Osaka Prefecture University)

*Kazuhei KIKUCHI¹, Hiroyuki NAGAHAMA¹ (1.Department of earth science, Tohoku University)

*Akira ONO

*Akira TAKASU¹, M.F. Kabir¹ (1.Shimane University)

*Takeyoshi SADAKANE¹, Hiroshi YAMAMOTO¹, Shuro UEDA², Masaru TERABAYASHI³ (1.Graduate School of Science and Engineering Kagoshima University, 2.Dia Consultants CO.,Ltd, 3.Department of Safety Systems Construction Engineering, Kagawa University)