[M-IS35] Why is this planet to be the Earth? -the role of water

Sun. May 24, 2015 11:00 AM - 12:45 PM 201A (2F)

Convener:*Nobukazu Seama(Department of Planetology, Graduate School of Science, Kobe University), Yoshiyuki Tatsumi(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Keiji Ohtsuki(Graduate School of Science, Kobe University), Takashi Nakagawa(JAMSTEC/MAT), Ikuo Katayama(Department of Earth and Planetary Systems Science, Hiroshima University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Akiko Nakamura(Graduate School of Science, Kobe University), Chair:Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Nobukazu Seama(Department of Planetology, Graduate School of Science, Kobe University)

Why is this planet to be the Earth? The aim of this session is to bring constraints on the role of water for answering this one of fundamental questions in the earth and planetary sciences. We invite contributions that present the results of recent geophysical observation, experimental studies, geochemical and petrological analyses, and numerical modeling with related to 1) the origin of water in the Earth, 2) the role of water through the Earth evolution, and 3) the water distribution and circulation in the current solid Earth system.

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11:00 AM - 11:15 AM

[MIS35-08] Origin and evolution of water in the Earth inferred from geological evidences

*Ikuo KATAYAMA¹, Kyoko N. MATSUKAGE², Jun-ichi KIMURA³, Tatsuhiko KAWAMOTO⁴ (1.Department of Earth and Planetary Systems Science, Hiroshima University, 2.Department of Earth and Planetary Sciences, Kobe University, 3.Japan Agency for Marine-Earth Scienc and Technology, 4.Department of Earth and Planetary Sciences, Kyoto University)

11:15 AM - 11:30 AM

[MIS35-09] Water transportation into the earth's interior - Oceanic plate and its evolution -

*Gou FUJIE¹, Shuichi KODAIRA¹, Yuka KAIHO¹, Takeshi SATO¹, Tsutomu TAKAHASHI¹, Narumi TAKAHASHI¹, Yojiro YAMAMOTO¹, Tomoaki YAMADA² (1.JAMSTEC, 2.ERI, Univ. of Tokyo)

11:30 AM - 11:45 AM

[MIS35-10] Origin of the oceanic lithosphere inferred from Po/So waves

*Azusa SHITO¹, Daisuke SUETSUGU², Takashi FURUMURA³ (1.Institute for Geothermal Sciences, Kyoto University, 2.Department of Deep Earth Structure and Dynamics Research, JAMSTEC, 3.Earthquake Research Institute,The University of Tokyo)

11:45 AM - 12:00 PM

[MIS35-11] Abyssal peridotites from the Central Indian Ridge: Implications for mantle heterogeneity and oceanic plate formation

*Tomoaki MORISHITA¹, Ryoko SENDA², Yusuke SODA¹, Kazuya ITO¹, Kentaro NAKAMURA³, Hidenori KUMAGAI², Kyoko OKINO³, Hiroshi SATO⁴ (1.Kanazawa University, 2.JAMSTEC, 3.University of Tokyo, 4.Senshu University)

12:00 PM - 12:15 PM

[MIS35-12] Heterogeneous structure of the incoming Philippine Sea plate along the southwestern Nankai Trough

*Ayako NAKANISHI¹, Yojiro YAMAMOTO¹, Mikiya YAMASHITA¹, Hikaru IWAMARU¹, Gou FUJIE¹, Seiichi MIURA¹, Shuichi KODAIRA¹, Yoshiyuki KANEDA¹ (1.JAMSTEC)

12:15 PM - 12:30 PM

[MIS35-13] Mantle wedge structure of the Japan Sea derived from Ocean Bottom Seismometer observation

*Kazuo NAKAHIGASHI¹, Tomoaki YAMADA², Kenji UEHIRA³, Kimihiro MOCHIZUKI², Shin'ichi SAKAI², Hajime SHIOBARA², Masanao SHINOHARA², Toshihiko KANAZAWA³ (1.Kobe Univ., 2.ERI, 3.NIED)

12:30 PM - 12:45 PM

[MIS35-14] Slab dehydration and melt generation in subduction zones

*Kazuhiko ISHII¹ (1.Graduate School of Sceiences, Osaka Prefecture University)