[S-GL33] Geologic structure and tectonic history of East Asia and Japanese Islands

convener:Jun Hosoi(Geological Survey of Japan, Institute of Geology and Geoinformation, AIST), Makoto Otsubo(Geological Survey of Japan, Research Institute of Earthquake and Volcano Geology)

The main aim of this session is to discuss geologic structure and tectonic history of East Asia, especially of Japanese Islands, on the basis of the recent results of geology and other earth sciences.

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[SGL33-01] Sedimentary History of the Ryukyu Group on Okinawa Island, southwestern Japan

*SHUYIN CHENG¹, Yasufumi Iryu², J Bruce H Shyu¹ (1.National Taiwan Univ., 2.Tohoku Univ.)

Cancelled

[SGL33-02] A new model to explain the enigmatic occurrence of fossil vertebrates in Miyako-jima, Ryukyu Islands

*Nana Watanabe¹, Kohsaku Arai², Hidetoshi Ota^3,4, Yasufumi Iryu¹ (1.Department of Earth Science, Faculty of Science, Tohoku University, 2.The Research Institute of Geology and Geoinformation, Geological Survey of Japan, 3.Institute of Natural and Environmental Sciences, University of Hyogo, 4.Museum of Nature and Human Activities)

[SGL33-03] Temporal changes of Cenozoic volcanic rock petrochemistry in Oki-Dogo, SW Japan

*Masataka Aizawa¹, Ryuichi Shinjo², Satoshi Okamura^3,4 (1.Graduate School of Engineering and Sience, University of the Ryukyus, 2.Faculty of Science, University of the Ryukyus, 3.Hokkaido Education University, 4.Hokkaido Soil-Research Co-op.)

[SGL33-04] Highly scattered paleomagnetic directions of middle Miocene volcanic rocks in the Inase area in Northeast Japan: vertical-axis rotations?

*Hiroyuki Hoshi¹, Miki Ohashi² (1.Department of Earth Sciences, Aichi University of Education, 2.Graduate, Aichi University of Education)

[SGL33-05] Stratigraphy and sedimentary facies of the Late Jurassic Nakanosawa Formation, Somanakamura Group: Facies changes from wave-dominated siliciclastic facies to lagoonal carbonate facies and their significance

*Hisao Ando¹, Shota Taguchi², Yoshihiro Morino³ (1.Department of Earth Sciences, College of Science, Ibaraki University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.Osaka Headquarters, Pacific Consultant Co. Ltd.)

[SGL33-06] Origin of alkali basalts in Late Jurassic to Early Cretaceous accretionary complex in Amami–Oshima Island, Ryukyu Arc

*Ginta Motohashi¹, Kohtaro Ujiie¹, Takashi Sano² (1.University of Tsukuba, 2.Department of Geology and Paleontology, National Museum of Nature and Science)