Japan Geoscience Union Meeting 2018

Session information

[EE] Evening Poster

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

[S-IT24] Probing the Earth's interior with geophysical observation on seafloor

Tue. May 22, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Daisuke Suetsugu(Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology), Guilhem BARRUOL(CNRS, Institut de Physique du Globe de Paris, France), Hitoshi Kawakatsu(東京大学地震研究所, 共同), Douglas Wiens(Washington University in St Louis)

Most important sites for plate tectonics and mantle dynamics studies (e.g., subduction zones, spreading ridges, and hot spots) are located in oceanic regions. The coverage of seismic stations is concentrated in land areas, which cover only one-third of Earth's surface. Since 1990s, technology for seafloor geophysical instruments to explore deep earth structure have been advanced, such as broadband ocean bottom seismographs (BBOBSs), ocean bottom electro-magnetometers (OBEMs), and pressure gauge, because observation network in oceanic regions is essential for major breakthroughs in Earth sciences. Technical advance in the instruments including cabled realtime seafloor networks have made the seafloor observation more common and reliable, which promotes a number of seafloor observations, both temporary and permanent networks, in the last decade. We call for papers on recent scientific results from such observation projects, including those on crust and mantle structure beneath subduction zones, hot spots, Large Igneous Provinces, and spreading ridges. Technical advances for observation in oceanic regions, including seafloor instruments and drifting float, proposals and plans for innovative observations are also welcome.

*Daisuke Suetsugu1, Hajime Shiobara2, Hiroko Sugioka4, Noriko Tada1, Aki Ito1, Takehi Isse2, Kiyoshi Baba2, Hiroshi Ichihara3, Toyonobu Ota5, Yasushi Ishihara1, Satoru Tanaka1, Masayuki Obayashi1, Takashi Tonegawa1, Junko Yoshimitsu1, Takumi Kobayashi4, Hisashi Utada2 (1.Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, the University of Tokyo, 3.Earthquake and Volcano Research Center Graduate School of Environmental Studies, Nagoya University, 4.Graduate School of Science, Kobe University, 5.Tierra Tecnica, Ltd.)

*Noriko Tada1, Kiyoshi Baba2, Hiroshi Ichihara3, Toyonobu Ota4, Takumi Kobayashi5, Hisashi Utada2, Daisuke Suetsugu1 (1.Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, The University of Tokyo, 3.Graduate School of Environmental Studies, Nagoya University, 4.TIERRA TECNICA Ltd., 5.Graduate School of Science, Kobe University)

*Satoru Tanaka1, Daisuke Suetsugu1, Hajime Shiobara2, Hiroko Sugioka3, Aki Ito1, Takehi Isse2, Yasushi Ishihara4, Masayuki Obayashi1, Takashi Tonegawa4, Junko Yoshimitsu1, Takumi Kobayashi3 (1.Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology, 2.Earthquake Research Institute, University of Tokyo, 3.Department of Planetology, Kobe University, 4.R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)

*Minoru Kobayashi, Motoo Ukawa1, Yoshio Fukao2, Daisuke Suetsugu2, Hajime Shiobara3, Hiroko Sugioka4, Aki Ito2, Takehi Isse3, Yasushi Ishihara2, Satoru Tanaka2, Masayuki Obayashi2, Takashi Tonegawa2, Junko Yoshimitsu2, Takumi Kobayashi4 (1.Nihon University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Earthquake Research Institute, the University of Tokyo, 4.Kobe University)

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