[S-IT29] [EE] New perspectives on East Asia geodynamics from the crust to the mantle

2017年5月23日(火) 15:30 〜 17:00 ポスター会場 (国際展示場 7ホール)

コンビーナ:Timothy B Byrne(University of Connecticut)、木村学(東京海洋大学・学術研究院)、Jonny Wu(University of Houston)、沖野郷子(東京大学大気海洋研究所)

The Philippine Sea plate and smaller East Asia marginal basins have been sandwiched by convergence of the larger Pacific and Indo-Australian plates towards Eurasia, producing some of the most active tectonic environments on Earth. The last decade has yielded a wide range of new observations that include geologic data along the plate margins, crustal to mantle imaging, and the geometry of subducted slabs. Together, these new perspectives have important implications for understanding the dynamics of plate interactions in this region. Here we seek oral and poster presentations that bear on the geologic history and geophysical character of modern and ancient plates in East Asia. We also invite geodynamic models that integrate these diverse datasets into a more holistic view of this dynamic environment.

[SIT29-P01] Lithospheric structure of East Sea of Korea from teleseismic receiver functions: Seismic evidence of ancient back-arc basin opening

*HyeJeong Kim¹、Younghee Kim¹ (1.School of Earth and Environmental Sciences, Seoul National University)

[SIT29-P02] Stress field did not change at 15 Ma in SW Japan: Counterevidence from dike orientations

*羽地俊樹¹、山路敦¹、佐藤活志¹ (1.京都大学理学部)

[SIT29-P03] Deep focus earthquakes and slab-like structure beneath Northeast China and surrounding regions

*Fengxue Zhang¹、Qingju Wu¹ (1.Institute of Geophysics, China Earthquake Administration)

[SIT29-P04] 3-D upper mantle structure beneath the Sea of Japan with inter-station surface-wave analysis using multiple seismic arrays

成田涼¹、浜田広太¹、*吉澤和範^1,2、川勝均³、宮町宏樹⁴、一柳昌義⁵、高橋浩晃⁵、Iurii Levin⁶、Valentin Mikhaylov⁶、Dmitrii Kostylev⁶ (1.北海道大学大学院理学院、2.北海道大学大学院理学研究院、3.東京大学地震研究所、4.鹿児島大学大学院理工学研究科、5.北海道大学大学院理学研究院付属地震火山センター、6.Sakhalin Branch of Geophysical Survey, Russian Academy of Sciences)

[SIT29-P05] Petrological and geochemical features of gabbros and relatively primitive basalts from Nikoro Group, Tokoro belt, eastern Hokkaido: Implications for the geodynamic setting

*山崎徹¹、七山太¹ (1.産業技術総合研究所)

[SIT29-P06] Velocity structure of uppermost mantle from Pn tomography beneath the southeastern margin of the Tibetan Plateau

*Lian Sun¹、Qingju Wu¹ (1.Institute of Geophysics,China Earthquake Administration)

[SIT29-P07] Dissolved helium isotopes in groundwater: Implication for subduction of continental crust in an active arc-continent collision

*Ai-ti Chen¹、Chuan-chou Shen¹、Timothy B Byrne²、Yuji Sano³、Naoto Takahata³、Tsanyao Frank Yang⁴、Cheng-Hong Chen⁴、Tsung-Kwei Liu⁴、Kuan-Yu Chen⁵、Yunshuen Wang⁶ (1.High-Precision Mass Spectrometry and Environment Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University, Taipei, Taiwan, R.O.C.、2.Center for Integrative Geosciences, University of Connecticut, Storrs, CT 06269-1045, United States、3.Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan、4.Department of Geosciences, National Taiwan University, Taipei, Taiwan, R.O.C.、5.Industrial Technology Research Institute, Taipei, Taiwan, R.O.C.、6.Central Geological Survey, MOEA, Taipei, Taiwan, R.O.C.)

[SIT29-P08] Moho Depth of The South China Sea Basin from Three-dimensional gravity inversion with control points and its characteristic

*Wu Zhaocai¹ (1.Second Institute of Oceanography State Oceanic Administration)

[SIT29-P09] The tectonic boundaries of the Jiangnan belt in South China: insights from potential-field anomalies

*Lianghui Guo¹ (1.China University of Geosciences (Beijing), School of Geophysics and Information Technology)

[SIT29-P10] Lithospheric rebuilding of the Alashan and ordos by upper mantle upwelling: evidence from multiscale teleseismic tomography

*Biao Guo¹、Qiyuan Liu¹、Jiuhui Chen¹ (1.Institute of Geology, China Earthquake Administration)

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