Variations in paleovegetation recorded by terrestrial plant-derived biomarkers in sediments from the northern Japan Sea over the last 4.3 Ma

Ken Sawada1, Chiaki Aoyagi1, Satoshi Furota2, Tomohisa Irino3 and Yaeko Igarashi4, (1)Hokkaido University, Department of Earth and Planetary Sciences, Sapporo, Japan, (2)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (3)Hokkaido Univ, Sapporo, Japan, (4)Institute for Paleoenvironment of Northern Regions, Kitahiroshima, Japan