[JJ] Oral
B (Biogeosciences) » B-CG Complex & General
Mon. May 21, 2018 10:45 AM - 12:15 PM 102 (1F International Conference Hall, Makuhari Messe)
convener:Yukio Isozaki(Department of Earth Science and Astronomy, Multi-disciplinary Sciences - General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo), Yusuke Sawaki(The University of Tokyo), Chairperson:Sawaki Yusuke(The University of Tokyo)
Biotic evolution was the consequence of repeated extinction and following diversification in the past, which was caused by large-scale environmental changes, in particular, by extremely rapid and drastic forcing that changed the environments of the biosphere. Irreversible and episodic changes in material cycling on the planet and in galactic cosmic radiation are nominated as major driving mechanism for the alleged rapid, large-scale environmental perturbations. The biodiversity change in the fossiliferous Phanerozoic record is characterized by 5 major mass extinctions within the long-term trend of diversity increase. Nonetheless, each extinction event has been explained rather in ad hoc manner, without any universal explanation. This session discusses the Phanerozoic biodiversity change under a new light of the recent progress in geology.
10:45 AM - 11:05 AM
*Hisanori Shinohara1, Ayano Nakagawa1, Yukio Isozaki2 (1.Nagoya University, 2.University of Tokyo)
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11:05 AM - 11:20 AM
*Naoto Takahata1, Tetsuji Onoue2, Mitsutaka Miura3, Yuji Sano1, Yukio Isozaki4 (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Faculty of Advanced Science and Technology, Kumamoto University, 3.Graduate School of Science and Technology, Kumamoto University, 4.Department of Earth Science and Astronomy, the University of Tokyo)
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11:20 AM - 11:35 AM
*Yukio Isozaki1 (1.Department of Earth Science and Astronomy, Multi-disciplinary Sciences - General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo)
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11:35 AM - 11:50 AM
*Calum Peter Fox1, Jessica H. Whiteside2, Paul E. Olsen3, Roger Summons4, Kliti Grice1 (1.WA-OIGC, Curtin University, Western Australia, 2.School of Earth and Ocean Science, University of Southampton, UK, 3.Columbia University, USA, 4.MIT, USA)
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11:50 AM - 12:05 PM
*Hisashi Suzuki1 (1.Otani University)
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Discussion (12:05 PM - 12:15 PM)
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