*Tomohiro Takaba1, Hidetsugu Yoshida2 (1.Depertment of Geography, Graduate School of Arts and Letters, Meiji University, 2.Depertment of Geography, Meiji University)
convener:Koji Okumura(Graduate School of Letters, Hiroshima University), Daisaku Kawabata(Institute of Geology and Geoinformation, Geological Survey of Japan, AIST), Hidetsugu Yoshida(Department of Geography, Meiji University), Chairperson:Koji Okumura(Graduate School of Letters, Hiroshima University)