1:45 PM - 2:00 PM
S (Solid Earth Sciences) » S-IT Science of the Earth's Interior & Tectonophysics
[S-IT22] [EE] Interaction and Coevolution of the Core and Mantle in the Earth and Planets
Sat. May 20, 2017 1:45 PM - 3:15 PM A05 (Tokyo Bay Makuhari Hall)
convener:Taku Tsuchiya(Geodynamics Research Center, Ehime University), Hidenori Terasaki(Graduate School of Science, Osaka University), Madhusoodhan Satish-Kumar(Department of Geology, Faculty of Science, Niigata University), Tetsuo Irifune(Geodynamics Research Center, Ehime University), John Hernlund(Earth-Life Science Institute, Tokyo Institute of Technology), Eiji Ohtani(Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University), Chairperson:Hidenori Terasaki(Graduate School of Science, Osaka University)
Recent observational and experimental investigations have significantly advanced our understanding of the structure and constituent materials of the deep Earth. However, 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, have remained unclear for over 60 years. Seismological evidence has suggested a vigorous convection in the lower mantle, whereas geochemistry has suggested the presence of stable regions there that hold the chemical signature of early Earth. The amounts of radioactive isotopes that act as the heat sources that drive the dynamic behaviors of the deep Earth are also still largely unknown.
We provide an opportunity to exchange the achievements and ideas, and encourage the persons who try to elucidate these unresolved mysteries in the Earth and planetary interiors through comprehensive investigations of the interactions between the core and mantle by combining high-pressure and high-temperature experiments, microscale geochemical analysis, high-resolution geophysical observations, geo-neutrino observations and large-scale numerical simulations.
2:00 PM - 2:15 PM
Keitaro Watanabe1, *Seiji Kamada1,2, Shin Ozawa1, Akio Suzuki1, Jay Bass3 (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 3.University of Illinoius at Urbana-Champaign)
2:15 PM - 2:30 PM
[SIT22-15] Reconciling Magma-Ocean Crystallization Models with the present-day Structure of the Earth’s mantle
*Maxim Ballmer1,2, Diogo Lourenco1, Kei Hirose2,3, Razvan Caracas4, Ryuichi Nomura2 (1.Institut für Geophysik, ETH Zürich, Sonneggstrasse 5, 8092 Zurich, Switzerland, 2.Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan, 3.Laboratory of Ocean-Earth Life Evolution Research, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Kanagawa 237-0061, Japan, 4.Laboratoire de Géologie de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, 46 Allée d'Italie, 69342 Lyon Cedex 07, France,)
2:30 PM - 2:45 PM
*Ryosuke Tanaka1, Tatsuya Sakamaki1, Hiroshi Fukui2, Eiji Ohtani1, Seiji Kamada1, Sei Sato1, Satoshi Tsutsui3, Hiroshi Uchiyama3, Alfred Q.R. Baron4, Akio Suzuki1 (1.Tohoku University, 2.University of Hyogo, 3.Japan Synchrotron Radiation Research Institute, 4.RIKEN)
2:45 PM - 3:00 PM
3:00 PM - 3:15 PM