Solid Earth Sciences (S)
Session Sub-category Science of the Earth's Interior & Tectonophysics(IT)
Session ID S-IT20
Title Deep Earth Sciences
Short Title Deep Earth Sciences
Main Convener Name Takayuki Ishii
Affiliation Institute for Planetary Materials, Okayama University
Co-Convener 1 Name Riko Iizuka-Oku
Affiliation Department of Earth Sciences, School of Education, Waseda University
Co-Convener 2 Name Kenji Kawai
Affiliation Department of Earth and Planetary Science, School of Science, University of Tokyo
Co-Convener 3 Name Jun Tsuchiya
Affiliation Department of Earth and Space Science, The University of Osaka
Session Language 
E
Scope 
Recent geophysical and geochemical observations and experimental and theoretical studies of deep Earth materials have greatly advanced our understanding of the structure, dynamics, and constituent materials of the deep Earth. However, there are still many unanswered questions about the formation and evolution of the Earth, such as the heterogeneous structure of the silicate mantle and the varieties and abundances of light elements in the iron core. The purpose of this session is to provide an opportunity to bring together the results of various research fields focusing on the core, mantle, and their interaction and coevolution in the Earth and planets, and to exchange their interdisciplinary information. The conference will promote development of new research fields through the presentation of the results of advanced researches such as high-precision paleomagnetic measurements, geophysical observations, precise geochemical analyses, direct observation of deep Earth radioactivity using geoneutrinos, numerical simulation techniques for mantle convection and geodynamo, and high-pressure mineral physics. Presentations related to the formation of the Japanese version of the Deep Earth and Planetary Research Group (SEDI-J) to develop collaboration among different fields are also welcome. This session is also sponsored by the Commission of Physics of Minerals in the International Mineralogical Association (CPM-IMA).
Presentation Format Oral and Poster presentation
Invited Authors Kotaro Tarumi (Department of Natural History Sciences, Graduate School of Science, Hokkaido University)
Julien Gasc (Ecole Normale Superieure)
Manabu Morishige (Earthquake Research Institute, the University of Tokyo)
Hideharu Kuwahara (Geodynamics Research Center, Ehime University)
Shunpei Yokoo (The University of Tokyo)
JIAJUN JIANG (Geodynamics Research Center, Ehime University)
Jun Su (Japan Agency for Marine-Earth Science and Technology)
Izumi Mashino (Institute for Planetary Materials, Okayama University)
Time Presentation No Title Presenter
Oral Presentation May 28 PM1
13:45 - 14:00 SIT20-01 Mapping X-discontinuities beneath Australia from the joint Bayesian inversions of P-wave receiver functions and multimode surface waves Kotaro Tarumi
14:00 - 14:15 SIT20-02 The stability of CaMgSi2O6 perovskite under the lower mantle condition Kotaro Nakamura
14:15 - 14:30 SIT20-03 Shear wave splitting analysis of Thai Seismic Array recordings: Implications for the mantle flow beneath Thailand Tarudee Autaijaratrasmee
14:30 - 14:45 SIT20-04 Slip system transition of bridgmanite Daisuke Yamazaki
14:45 - 15:00 SIT20-05 The elastic behaviour of Fe-bearing calcium-ferrite (CF) type phase to lower mantle pressure Elena Marie Rogmann
15:00 - 15:15 SIT20-06 Learning About Transition Zone Rheology from the Scaling Laws of Deep-Focus Labquakes Julien Gasc
Oral Presentation May 28 PM2
15:30 - 15:45 SIT20-07 Anisotropic thermal conductivity and seismic anisotropy in the oceanic lithosphere-asthenosphere system Manabu Morishige
15:45 - 16:00 SIT20-08 3-D mapping of seismic velocity and discontinuities in the continental upper mantle: A review for Australia Kazunori Yoshizawa
16:00 - 16:15 SIT20-09 The iron charge disproportionation reaction in silicate melts: The effects of oxygen fugacity Taku Tsuchiya
16:15 - 16:30 SIT20-10 Influence of sulfur on metal-silicate partitioning of highly siderophile elements at high pressures Nozomi Kondo
16:30 - 16:45 SIT20-11 Detection of water in the Martian mantle by electrical conductivity measurement Takashi Yoshino
16:45 - 17:00 SIT20-12 A possible origin of dichotomic oxidation states between HED meteorites and angrite meteorites: Implications for planetesimals in the earliest inner solar system Hideharu Kuwahara
Oral Presentation May 29 AM1
9:00 - 9:15 SIT20-13 The effect of hydrogen on the metal-silicate partitioning of sulfur Shunpei Yokoo
9:15 - 9:30 SIT20-14 Stability of hydrous minerals in hydrous pyrolite system at high pressure: implication for water transportation into the deep mantle Jintao Zhu
9:30 - 9:45 SIT20-15 Water Incorporation in the Mantle Transition Zone During Magma Ocean Crystallization Longjian Xie
9:45 - 10:00 SIT20-16 Alumina partitioning between silica minerals and bridgmanite at top lower mantle conditions: Implication for water cycling by basaltic crust Takayuki Ishii
10:00 - 10:15 SIT20-17 Dependence of iron content on nitrogen solubility in bridgmanite and implications for the formation of super-deep nitrogen reservoir Ko Fukuyama
10:15 - 10:30 SIT20-18 Hydrogen distribution during the core-mantle segregation JIAJUN JIANG
Oral Presentation May 29 AM2
10:45 - 11:00 SIT20-19 VP-VS Uncorrelation in the Lowermost Mantle Revealed by Machine Learning Traveltime Catalog Jun Su
11:00 - 11:15 SIT20-20 Interaction of subducted slabs with lowermost mantle materials: Insights from waveform inversion for transversely isotropic structure beneath Central America Rei Sato
11:15 - 11:30 SIT20-21 Cold SiO2-rich slabs reaching the CMB revealed by the seifertite phase boundary Ryosuke Sinmyo
11:30 - 11:45 SIT20-22 Our understanding of the CMB heat transport Haruhiko Dekura
11:45 - 12:00 SIT20-23 Lateral heterogeneity of stable stratification at the outermost outer core estimated by a radial one-dimensional model Shin-ichi Takehiro
12:00 - 12:15 SIT20-24 Valence/spin states of iron in peridotite glass to megabar pressure implications for dense iron-rich silicate melt at the bottom of the mantle Izumi Mashino
Presentation No Title Presenter
Poster Presentation May 28 PM3
SIT20-P01 Inversion of antipodal PKPab waves by the adjoint method to reveal the locations of the uplifting mantle plume at the base of the mantle Seiji Tsuboi
SIT20-P02 Ab initio structural models and infrared spectra of hydrous bridgmanite Inagaki Kikuyo
SIT20-P03 ScS Travel Times of Deep Earthquakes and Plate Subduction Takahito Fukushige
SIT20-P04 GHz-DAC ultrasonics: Current status and characteristics of the ZnO piezoelectric oscillator Akira Yoneda
SIT20-P05 Using the Sdiff phase in waveform inversion: Preliminary application to D″ beneath the central Pacific Keisuke Otsuru
SIT20-P06 Iron percolation and its effect on the convective vigor Sogen Kitamura
SIT20-P07 Compressibility of single crystal zircon up to 19 GPa: implication to the partitioning coefficient of trace elements Shuhou Maitani
SIT20-P08 The dynamical and elastic properties of ULVZs based on ab initio high-P,T melts data Kan Kitano
SIT20-P09 Low seismic velocity anomaly in the lowermost mantle beneath the Western Pacific Ocean Hiiro Tabata
SIT20-P10 Development of a real-time constraint of the sample thickness under high pressure by the GHz-DAC ultrasonics ryoma ishida
SIT20-P11 Effect of iron on thermal conductivity of dry ringwoodite: implications for mantle dynamics and evolution of terrestrial planets Youyue Zhang
SIT20-P12 Disproportionation of wadsleyite splits the 520-km seismic discontinuity Dongliang Jiang
SIT20-P13 Phase relations in the system CaAl2O4-MgAl2O4 up to top-lower-mantle conditions Jinze He
SIT20-P14 Water partitioning between wadsleyite and garnet under water-unsaturated conditions Moe Sakurai
SIT20-P15 Effect of Water on Martian Magma Ocean Evolution: Experimental Insights into dense silicate layer at the CMB Dilan Harsha Fernando Diyalanthonige