Organic geochemical records of paleo-tsunami in peat sediments of the Akkeshi area, eastern Hokkaido, Japan


Hiroyasu Asahi1, Ken Sawada2, Satoshi Furota3, Yoshihiro Kase4 and Keiichi Hayashi4, (1)Hokkaido University, Sapporo, Japan, (2)Hokkaido University, Department of Earth and Planetary Sciences, Sapporo, Japan, (3)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (4)Geological Survey of Hokkaido, Sapporo, Japan