[E] Oral

S (Solid Earth Sciences ) » S-IT Science of the Earth's Interior & Techtonophysics

[S-IT26] New perspectives on the geodynamics of East Asia

Wed. May 29, 2019 1:45 PM - 3:15 PM A09 (TOKYO BAY MAKUHARI HALL)

convener:Timothy B Byrne(University of Connecticut), Asuka Yamaguchi(Atomosphere and Ocean Research Institute, The University of Tokyo), Jonny Wu(University of Houston), Kyoko Okino(Atmosphere and Ocean Research Institute, The University of Tokyo), Chairperson:Jonny Wu, Okino Kyoko

The Pacific, Indo-Australia and Eurasian plates converge around the Philippine Sea plates in south and East Asia, resulting in one of the most tectonically active regions on earth. The area is also geologically and tectonically complex with numerous active tectonic environments, ranging from subduction to collision, and a long history of plate boundary interactions. The last decade has yielded a wide range of new observations, including detailed geologic data and high resolution crustal to mantle imaging. Here we seek oral and poster presentations that bear on the geologic history and geophysical character of modern and ancient plates in East Asia and their interactions since the Mesozoic. We also invite geodynamic models that integrate these diverse datasets into a more holistic view of this dynamic environment.

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1:45 PM - 2:00 PM

[SIT26-01] How to solve controversies in Cenozoic tectonics in western Pacific margin

*Gaku Kimura¹ (1.Tokyo University of Marine Science and Technology)

2:00 PM - 2:15 PM

[SIT26-02] Plio-Pleistocene plate interactions associated the Philippine Sea Plate

*Timothy B Byrne¹, Gaku Kimura³, Jonny Wu² (1.University of Connecticut, 2.University of Houston, 3.Tokyo University of Science and Technology)

2:15 PM - 2:30 PM

[SIT26-03] A regional mylonite zone between the Mesozoic metamorphic basement and the subducted Miocene covered schists in eastern Range of Taiwan: A possible Plio-Pleistocene transform fault between Eurasia and the Philippine Sea plate

*Gong-Ruei Ho¹, Jian-Cheng Lee¹, Timothy B Byrne², En-Chao Yeh³ (1.Institute of Earth Sciences, Academia Sinica, 2.Department of Geography, University of Connecticut, 3.Department of Earth Sciences, National Taiwan Normal University)

2:30 PM - 2:45 PM

[SIT26-04] Coeval exhumation or subduction channel extrusion of the high pressure Yuli belt? Insights from the Shoufeng fault in eastern Taiwan

*Jian-Cheng Lee^1,5, Gong-Ruei Ho^1,5, Timothy B Byrne², Yuan Hsi Lee^3,5, En-Chao Yeh^4,5 (1.Academia Sinica, 2.Univerity of Connecticut, 3.National Chung Cheng University, 4.National Taiwan Normal University, 5.The Yuli Exhumation Study team (YES Team))

2:45 PM - 3:00 PM

[SIT26-05] Metamorphic temperature variation across the Yuli belt: a clue about exhumation of high-pressure rocks?

*Chin-Ho Tsai¹, Chih-Ying Yeh¹, Yui Kouketsu², Masaki Enami³ (1.Department of Natural Resources & Environmental Studies, National Dong Hwa Univ., 2.Department of Earth & Planetary Sciences, Nagoya Univ., 3.Institute for Space-Earth Environmental Research, Nagoya Univ.)

3:00 PM - 3:15 PM

[SIT26-06] Thermal state, slab metamorphism and interface seismicity in Mariana based on 3-D modeling

*Yingfeng Ji^1,2,3, Shoichi Yoshioka^3,4 (1.Center of Excellence in Tibetan Plateau Earth Science, Chinese Academy of Sciences, 2.Key laboratory of continental collision and plateau uplift, Institute of Tibetan Plateau, Chinese Academy of Sciences, 3.Research Center for Urban Safety and Security, Kobe University, 4.Graduate School of Science, Kobe University)

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