[EE] Poster

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

Tue. May 22, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, 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)

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.

[SIT22-P01] Waveform inversion for the 3-D S-velocity structure of the mantle transition zone beneath Central America using USArray data

*Anselme F. E. Borgeaud¹, Kenji Kawai¹, Robert J. Geller¹, Maxim Ballmer² (1.Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 2.ETH Zurich Swiss Federal Institute of Technology Zurich)

[SIT22-P02] Observation of multipathing at the western edge of the Pacific Large Low-Shear-Velocity Province

*Sunil K. Roy^1,2, Nozomu Takeuchi¹, D. Srinagesh², M. Ravi Kumar^2,3, Hitoshi Kawakatsu¹ (1.Earthquake Research Institute, The University of Tokyo, Tokyo – 1130032, Japan, 2.CSIR-National Geophysical Research Institute, Hyderabad – 500007, India, 3.Institute of Seismological Research, Gandhinagar – 382009, India)

[SIT22-P03] Phase relations in the Fe-Ni-Si system at high pressures and high temperatures

*Daijo Ikuta¹, Eiji Ohtani¹ (1.Department of Earth Science, Tohoku University)

[SIT22-P04] High pressure generation up to 24 gigapascals using a D-DIA apparatus combined with jacketed anvils

*Tomohiro Ohuchi¹ (1.Geodynamics Research Center, Ehime University)

[SIT22-P05] Thermal conductivity and compressibility of iron and aluminum-bearing bridgmanite: implications for spin-crossover of iron

*Yoshiyuki Okuda¹, Kenji Ohta¹, Takashi Yagi², Ryosuke Sinmyo⁴, Kei Hirose^3,4, Yasuo Ohishi⁵ (1.Tokyo Institute of Technology, 2.AIST, 3.ELSI, 4.University of Tokyo, 5.JASRI)

[SIT22-P06] Sound velocity measurements on bridgmanite at lower mantle pressures

*Tatsuya Wakamatsu¹, Kenji Ohta¹, Takashi Yagi², Ryosuke Sinmyo³ (1.Tokyo Institute of Technology, 2.National Institute of Advanced Industrial Science and Technology, 3.University of Tokyo)

[SIT22-P07] Lattice thermal conductivity of (Mg,Fe)O

*Akira Hasegawa¹, Kenji Ohta¹, Takashi Yagi², Kei Hirose¹, Tadashi Kondo³ (1.Tokyo Institude of Technology, 2.National Institute of Advanced Industrial Science and Technology, 3.Osaka University)

[SIT22-P08] Development of electric furnace designed for density measurement of metals

*Asaka Kamiya¹, Hidenori Terasaki¹, Tadashi Kondo¹ (1.Osaka University)

[SIT22-P09] Stability of hydrous aluminosilicates at the transition zone and the lower mantle

Ryota Abe¹, Yuki Shibazaki², Shin Ozawa¹, Itaru Ohira¹, Hiromu Tobe¹, *Akio Suzuki¹ (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Tohoku University, Sendai 980-8578, Japan)

[SIT22-P10] Thermal equations of state of MgSiO₄H₂ phase H up to 63 GPa determined by in situ X-ray diffraction measurement in a multianvil apparatus

*Masayuki Nishi^1,2, Jun Tsuchiya^1,2, Takeshi Arimoto¹, Sho Kakizawa¹, Takehiro Kunimoto¹, Yoshinori Tange³, Yuji Higo³, Tetsuo Irifune^1,2 (1.Geodynamics Research Center, Ehime University, 2.The Earth-Life Science Institute, Tokyo Institute of Technology, 3.Japan Synchrotron Radiation Research Institute)

[SIT22-P11] Light element distribution produced by convection due to CMB heterogeneity in the outer core of the Earth

*Youhei SASAKI², Shin-ichi Takehiro¹ (1.Research Institute for Mathematical Sciences, Kyoto University, 2.Department of Mathematics, Kyoto University)

[SIT22-P12] Kinematic dynamos associated with top-down and bottom-up convection in rotating spherical shells

*Hinami Taniguchi¹, Futoshi Takahashi¹ (1.Kyushu University)

[SIT22-P13] A preliminary model for S-wave velocity structure in the D" region beneath New Guinea by using Thai Seismic Array (TSAR)

*Satoru Tanaka¹, W. Siripunvaraporn², S. Boonchaisuk², S. Noisagool², Kenji Kawai³, Yuki Suzuki³, Yasushi Ishihara⁴, Taewoon Kim⁴, Koji MIYAKAWA⁵, Nozomu Takeuchi⁵, Hitoshi Kawakatsu⁵ (1.Department of Deep Earth Structure and Dynamics Research, Japan Agency for Marine-Earth Science and Technology, 2.Faculty of Science, Mahidol University, 3.School of Science, University of Tokyo, 4.R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, 5.Earthquake Research Institute, University of Tokyo)

[SIT22-P14] Multiple sulfur isotope analytical system using IRMS MAT-253 for high pressure experimental run products

*Madhusoodhan Satish-Kumar¹, Shinnosuke Aoyama¹, Miyako Abe² (1.Department of Geology, Faculty of Science, Niigata University, Japan, 2.Graduate School of Science and Technology, Niigata University, Japan)

[SIT22-P15] Melting of iron to 290 gigapascals

*Ryosuke Sinmyo^1,2, Kei Hirose^1,2, Yasuo Ohishi³ (1.Earth-Life Science Institute, Tokyo Institute of Technology, 2.The University of Tokyo, 3.Japan Synchrotron Radiation Research Institute)

[SIT22-P16] Dissolution of multi light elements in iron-silicate system using high pressure and high temperature experiments: Implications for the Earth's evolution

*Riko Iizuka-Oku¹, Hirotada Gotou², Hiroyuki Kagi¹ (1.Geochemical Research Center, Graduate School of Science, The University of Tokyo, 2.The Institute for Solid State Physics, The University of Tokyo)

[SIT22-P17] Ab initio lattice thermal conductivity of MgSiO₃ post-perovskite

*Haruhiko Dekura¹, Taku Tsuchiya^1,2 (1.Geodynamics Research Center, Ehime University, 2.Earth-Life Science Institute, Tokyo Institute of Technology)

[SIT22-P18] First-principles study on the site occupancy of Fe³⁺ in ferropericlase (Mg,Fe)O

*Hokai Fujitani¹, Taku Tsuchiya¹ (1.Ehime University Geodynamics Research Center)

[SIT22-P19] **High P-T electrical resistivity measurements on iron in an internally-heated diamond anvil cell**

*Sho Suehiro¹, Kenji Ohta¹, Kei Hirose^2,3, Yasuo Ohishi⁴ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2.University of Tokyo, 3.ELSI, Tokyo Institute of Technology, 4. JASRI)

[SIT22-P20] Grain-size evolution and rheology of the lower mantle

*Masahiro Imamura¹, Tomoaki Kubo¹ (1.Kyushu University)

[SIT22-P21] Quatitative isotope imaging methods using secondary ion mass spectrometry

*Shoichi Itoh¹, Takashi Sugou¹ (1.Graduate school of Science, Kyoto University)

[SIT22-P22] Sub-µm-scale investigations for metasomatic PGM–BMS inclusion in Tahitian harzburgite xenolith

*Norikatsu Akizawa¹, Akira Miyake², Yohei Igami², Tetsu Kogiso³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Graduate School of Science, Kyoto University, 3.Graduate School of Human and Environmental Studies, Kyoto University)

[SIT22-P23] Recycled Archean sulfur in the mantle wedge of the Mariana Forearc

*Shinnosuke Aoyama¹, Manabu Nishizawa², Junichi Miyazaki², Takazo Shibuya², Yuichiro Ueno³, Ken Takai² (1.Niigata University, 2.JAMSTEC, 3.TITECH)

[SIT22-P24] Development of New Technology for Geoneutrino Directional Measurement

*Hiroko Watanabe¹ (1.Research Center for Neutrino Science, Tohoku University)

[SIT22-P25] U, Th concentration database of basement rocks of Japanese islands with accurate location coordinates for geoneutrino modeling

*Kenta Ueki¹, Satoru Haraguchi¹, Shunsuke Horiuchi¹, Mika Mohamed¹, Hikaru Iwamori^1,2 (1.Japan Agency for Marine-Earth Science and Technology, 2.4Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

[SIT22-P26] Heat flow determination in the central part of Japan

*Hideki Hamamoto¹, Makoto Yamano², Akiko Tanaka³, Takumi Matsumoto⁴, Youhei Uchida³, Shusaku Goto³ (1.Center for Environmental Science in Saitama, 2.Earthquake Research Institute, University of Tokyo, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 4.National Research Institute for Earth Science and Disaster Resilience)

[SIT22-P27] The evaluation of the compositional variation in a single rock suite
revealed by grid sampling toward improving the accuracy of geoneutrino flux

*Minami Kazuki¹, Kenta Ueki², Tsuyoshi Iizuka³, Sanshiro Enomoto⁴, Hiroyuki K.M. Tanaka¹ (1.Earthquake Research Institute, the University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.University of Tokyo, 4.University of Washington)

[SIT22-P28] Zr isotope constraints on early Earth differentiation

*Tsuyoshi Iizuka¹, Keita Itano¹, Shinji Yamamoto² (1.University of Tokyo, 2.Yokohama National University)

[SIT22-P29] Rock-magnetic properties of single zircon crystals sampled from the Yangtze River and the Mississippi River

*Masahiko Sato¹, Shinji Yamamoto², Yuhji Yamamoto³, Wei Du¹, Masao Ohno⁴, Hideo Tsunakawa⁵, Shigenori Maruyama⁵ (1.The University of Tokyo, 2.Yokohama National University, 3.Kochi University, 4.Kyushu University, 5.Tokyo Institute of Technology)

[SIT22-P30] High precision ¹⁸²W/¹⁸³W isotopic compositions of terrestrial samples

Asako Takamasa¹, Yusuke Fukami¹, *Katsuhiko Suzuki^1,2 (1.Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, 2.Department of Earth Sciences, Graduate School of Science, Tohoku University)

[SIT22-P31] Magnetic mineral inclusions in single zircon crystals from the Tanzawa tonalite and the river of Yangtze and Mississippi

*Shinji Yamamoto¹, Yujiro Tamura¹, Masahiko Sato² (1.Graduate School of Environment and Information Sciences, Yohohama National University, 2.Department of Earth and Planetary Science, University Tokyo)

[SIT22-P32] Study of the required Rayleigh number to sustain geodynamo with various inner core radius

*Nishida Yuki¹, Yuto Katoh¹, Hiroaki Matsui², Masaki Matsushima³, Atsushi Kumamoto¹ (1.Department of Geophysics, Graduate School of Science, Tohoku University, 2.Dept. of Earth and Planetary Sciences, University of California, Davis, 3.Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology)

[SIT22-P33] On the geomagnetic direction changes and time constant of the core inferred from the geomagnetic secular variations

*Tadahiro Hatakeyama^1,2, Hidetoshi Shibuya³, Nobutatsu Mochizuki⁴ (1.Information Processing Center, Okayama University of Science, 2.Graduate Schoolof Geo- and Biosphere Science, Okayama University of Science, 3.Department of Earth and Environmental Sciences, Faculty of Advanced Science and Technology, Kumamoto University, 4.Priority Organization for Innovation and Excellence, Kumamoto University)

[SIT22-P34] Paleomagnetic and rock magnetic results from 17-22 ka sediment of Jeju Island, Korea: Excursional behavior of the geomagnetic field or rock magnetic anomalies?

*Hyeon-Seon Ahn¹, Young Kwan Sohn¹, Jin-Young Lee², Jin Cheul Kim² (1.Department of Geology and Research Institute of Natural Science, Gyeongsang National University, 2.Geologic Environment Division, Geo-Environmental Hazards and Quaternary Geology Research Center, Korea Institute of Geoscience and Mineral Resources)

[SIT22-P35] The effect of an azimuthal background magnetic field on waves in a stably stratified layer at the top of the Earth's outer core

*Ryosuke Nakashima¹, Shigeo Yoshida² (1.Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, 2.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

[SIT22-P36] Discussion

*Taku Tsuchiya¹ (1.Geodynamics Research Center, Ehime University)

[SIT22-P37] Discussion

*Kenji Ohta¹ (1.Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

[SIT22-P38] Discussion

*Tsuyoshi Iizuka¹ (1.University of Tokyo)

[SIT22-P39] A variety of Thellier behaviors from vertical sections of an obsidian-rhyolite complex

*Koji Fukuma¹ (1.Department of Environmental System Science, Faculty of Science and Engineering, Doshisha University)

Session information

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

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