Japan Geoscience Union Meeting 2018

Session information

[EE] Oral

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

[S-IT22] Interaction and Coevolution of the Core and Mantle in the Earth and Planets

Wed. May 23, 2018 10:45 AM - 12:15 PM International Conference Room (IC) (2F International Conference Hall, Makuhari Messe)

convener:Tsuyoshi Iizuka(University of Tokyo), Hidetoshi Shibuya(Department of Earth and Environmental Sciences, Faculty of Advanced Science and Technology, Kumamoto University), Taku Tsuchiya(愛媛大学地球深部ダイナミクス研究センター, 共同), Kenji Ohta(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Chairperson:Sumino Hirochika, Tateno Shigehiko, Iizuka Tsuyoshi

Recent observational and experimental investigations have significantly advanced our understanding of the structure and constituent materials of the deep Earth. Yet, even fundamental properties intimately linked with formation and evolution of the planet, such as details of the chemical heterogeneity in the mantle and light elements dissolved in the core, remained unclear. Seismological evidence has suggested a vigorous convection in the lower mantle, whereas geochemistry has suggested the presence of stable regions there that hold ancient chemical signatures. The amounts of radioactive isotopes that act as heat sources and drive dynamic behaviors of the deep Earth are also still largely unknown. We provide an opportunity to exchange the achievements and ideas, and encourage persons who try to elucidate these unsolved issues of the core-mantle evolution using various methods, including high-pressure and high-temperature experiments, high-precision geochemical and paleomagnetic analyses, high-resolution geophysical observations, geo-neutrino observations, and large-scale numerical simulations. Since this session is co-sponsored by geomagnetism, paleomagnetism and rock magnetism division of the SGEPSS, contributions in geomagnetism and geodynamo simulation are also encouraged.

11:30 AM - 11:45 AM

Satoshi Kishi1, *Hirochika Sumino1, Ryuichi Nomura2, Kenji Mibe3, Colin Jackson4,7, Hideharu Kuwahara2, Shigehiko Tateno5, Hiroyuki Kagi6 (1.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 2.Geodynamics Research Center, Ehime University, 3.Earthquake Research Institute, The University of Tokyo, 4.National Museum of Natural History, Smithsonian Institution, 5.Earth-Life Science Institute, Tokyo Institute of Technology, 6.Geochemical Research Center, Graduate School of Science, The University of Tokyo, 7.Geophysical Laboratory, Carnegie Institute of Washington)



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