*Zih Wei Tang¹, Liang Chi Wang², Huei Fen Chen¹ (1.Institute of Earth Sciences, National Taiwan Ocean University, 2.Department of Earth and Environmental Sciences, National Chung Cheng University)

*xingyu Jiang^1,2,3 (1.Asian marginal seas have played an important role in modulating regional energy and material exchanges and in deriving climatic and environmental evolutions. , 2.As an effective method, magnetostratigraphy establishes reliable geochronological framework, which is critical for reconstructing long-term history of climatic and environmental changes in the past. , 3.Due to that the previous long-term records were mainly located in the west and north Bohai Sea, thus a new Borehole HLL01, drilled in the Laizhou Bay with a length 450 m, was studied. )

*Yuichi Niwa¹, Toshihiko Sugai², Yoshiaki Matsushima³, Shinji Toda⁴ (1.Faculty of Science and Engineering, Chuo University, 2.Graduate School of Frontier Sciences, The University of Tokyo, 3.Kanagawa Prefectural Museum, Natural History , 4.International Research Institute of Disaster Science, Tohoku University)

*Marie Noguchi¹, Shigeko Ishiwata, Shigeto Osato², Toshihiko Sugai³, Suginaka Yusuke⁴, Kunihiko Endo⁵ (1.Paleo Labo co.,ltd., 2.Doshitsu Research Corporation, 3.Department of Natural Environmental Studies, Institute of Environmental Studies, Graduate School of Frontier Science, The University of Tokyo, 4.Research Center of Computational Mechanics, Inc., 5.Nihon University)

*Suginaka Yusuke¹, Shigeko Ishiwata, Masaaki Suzuki², Shinzaburo Hori¹, Toshio Nakayama³, Kunihiko Endo⁴ (1.Research Center of Computational Mechanics, Inc., 2.Bunkyo City Education Center, 3.Civil Engineering Support & Training Center,Tokyo Metropolitan Govrnment, 4.Nihon University)

*Takayuki Takahashi¹, Toshihiko Sugai¹ (1.Natural Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo)

*Taro Funatsu¹, Atsuto Izumida¹, Toshihiko Sugai¹, Kunihiko Endo² (1.Univ. of Tokyo, 2.Nihon Univ.)

*Masahiro Muraki¹, Taro Funatsu¹, Toshihiko Sugai¹ (1.Univ of Tokyo.)

*Yoshiki Sato¹, Kiyohide Mizuno¹ (1.Geological Survey of Japan, Advanced Industrial Science and Technology)

*Kazuyoshi Yamada¹, Daisuke Sugawara¹ (1.Museum of Natural and Environmental history, Shizuoka)

*Tomohiro Takaba¹ (1.Depertment of Geography, Graduate School of Arts and Letters, Meiji University)

*Takeshi ISHIHARA¹, Takehiko Suzuki², Misao Hongo³, Youhei Uchida¹ (1.Advanced Industrial Science and Technology, 2.Tokyo Metropolitan University, 3.Alps Technical Research Co., Ltd.)

*Itoko Tamura¹, Masayuki Utsunomiya², Kiyohide Mizuno² (1.Department of Geography,Graduate School of Science,Tokyo Metropolitan University, 2.Research Institute of Geology and Geoinformation, Geological Survey of Japan, AIST)

*Hiroomi Nakazato¹, Futoshi Nanayama², Hisatoshi Ito³, Shimpei Uesawa³, Akira Furusawa⁴, Kiyohide Mizuno² (1.National Agriculture and Food Research Organization, 2.National Institute of Advanced Industrial Science and Technology, 3.Central Research Institute of Electric Power Industry, 4.FURUSAWA Geological Survey)

*Yosuke Miyairi¹, Reisuke Kondo², Hiroko Fujita³, Yusuke Yokoyama¹ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Educational Development Center, Kogakkan University, 3.The Field Science Center for Northern Biosphere, Hokkaido University)