*Toshihiro Tada1, Ryuji Tada1,2, Paul Carling3, Wickanet Songtham4, Le Xuan Thuyen5, Yu Chang, Eiichi Tajika1 (1.Department of Earth and Planetary Science, 2.Yunnan University, 3.Geography and Environment, University of Southampton, 4.Northeastern Research institute of Petrified Wood and Mineral Resources, Nakhon Ratchasima Rajabhat University, 5.Ho Chi Minh City University of Science)
convener:Masanobu Yamamoto(Faculty of Environmental Earth Science, Hokkaido University), Ryuji Tada(Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo)