Japan Geoscience Union Meeting 2018

Session information

[EE] Oral

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 10:45 AM - 12:15 PM A09 (Tokyo Bay Makuhari Hall)

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), Chairperson:Suetsugu Daisuke, Tonegawa Takashi

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.

11:05 AM - 11:20 AM

*Guilhem BARRUOL1, John-Robert Scholz1, Alessandro Mazzullo1, Karin Sigloch3, Eléonore Stutzmann1, Jean-Paul Montagner1, Fabrice R. Fontaine2, Laurent Michon2, Christine Deplus1, Jérôme Dyment1 (1.Institut de Physique du Globe de Paris, Sorbonne Paris Cité, UMR 7154 CNRS, Paris, France, 2.Laboratoire GéoSciences Réunion, Université de La Réunion, Institut de Physique du Globe de Paris, UMR CNRS 7154, 15 avenue René Cassin, 97744 Saint Denis, France, 3.University of Oxford, Earth Sciences Department, South Parks Road, Oxford OX1 3AN, UK)

11:20 AM - 11:35 AM

*Kiyoshi Baba1, Natsue Abe2, Naoto Hirano3, Masahiro Ichiki4 (1.Earthquake Research Institute, The University of Tokyo, 2.Research and Development Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology, 3.Center for Northeast Asian Studies, Tohoku University, 4.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)



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