Solid Earth Sciences (S)
Session Sub-category Science of the Earth's Interior & Tectonophysics(IT)
Session ID S-IT14
Title Deep Earth Sciences
Short Title Deep Earth Sciences
Main Convener Name Kenji Kawai
Affiliation Department of Earth and Planetary Science, School of Science, University of Tokyo
Co-Convener 1 Name Jun Tsuchiya
Affiliation Geodynamics Research Center, Ehime University
Co-Convener 2 Name Takayuki Ishii
Affiliation Institute for Planetary Materials, Okayama University
Co-Convener 3 Name Riko Iizuka-Oku
Affiliation Department of Earth Sciences, School of Education, Waseda University
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 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 mantle and the varieties and abundances of light elements in the 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 promote the exchange of information. The conference will promote the development of new research fields through the presentation of the results of advanced research 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 Ko Fukuyama (Geodynamics Research Center, Ehime University, Matsuyama, Ehime, 790-8577, Japan)
Nozomi Kondo (Institute for Planetary Materials, Okayama University)
Artem Chanyshev (Bayerisches Geoinstitut, University of Bayreuth, 95440 Bayreuth, Germany)
Time Presentation No Title Presenter
Oral Presentation May 31 AM1
09:00 - 09:15 SIT14-01 Weakening of continental lithosphere by baby plume: insights from numerical models Ritabrata Dasgupta
09:15 - 09:30 SIT14-02 Phase transitions of AF2 difluorides MgF2, CaF2, and BaF2 at high pressures and temperatures Xinyue Zhang
09:30 - 09:45 SIT14-03 Unconventional high-pressure behaviors of hydrogen bonds in brucite caused by F substitution Xuejing He
09:45 - 10:00 SIT14-04 Al solubility in high pressure hydrous mineral, phase D and the effect for the stability region Maeda Daichi
10:00 - 10:15 SIT14-05 Ab Initio Calculations On The Mechanism Of The Iron Charge Disproportionation Reaction In Silicate Melts Taku Tsuchiya
Oral Presentation May 31 AM2
10:45 - 11:00 SIT14-06 Phase Stability of MgSiO3 Silicate Minerals at the Mantle TransitionZone (MTZ) Priyanka Pandit
11:00 - 11:15 SIT14-07 A step toward consistent pressure measurements in multi-anvil and diamond cells: Simultaneous compression of ruby, NaCl, and Au Yanbin Wang
11:15 - 11:30 SIT14-08 Evidence of the heavy noble gas incorporation into KAlSi3O8 hollandite under lower mantle conditions Riko Iizuka-Oku
11:30 - 11:45 SIT14-09 Double Seismic Discontinuities at the Base of the Mantle Transition Zone beneath the Northern Japan Sea Keiko Kuge
11:45 - 12:00 SIT14-10 Effects of high oxygen fugacity and water on melting temperature of wadsleyite and measurement
of Fe3+/ΣFe ratio by EELS 		Kazutaka Yamaguchi
12:00 - 12:15 SIT14-11 Constraining thermal and chemical heterogeneity in D″ beneath Central America based on waveform inversion for 3-D S- and P-velocity structure Rei Sato
Oral Presentation May 31 PM1
13:45 - 14:00 SIT14-12 Inferring 3-D azimuthally anisotropic structure of the lowermost mantle beneath the Northern Pacific using waveform inversion Ikuchi Funahashi
14:00 - 14:15 SIT14-13 Revaluation of nitrogen storage capacity in the lower mantle by ferropericlase forming solid solution with iron oxynitride. Ko Fukuyama
14:15 - 14:30 SIT14-14 Grain-size variation as a potential cause for the mid-mantle viscosity jump Tomoo Katsura
14:30 - 14:45 SIT14-15 SOR and AE studies on syndeformational olivine transformations up to 25 GPa Rikuto Honda
14:45 - 15:00 SIT14-16 Post-spinel phase transition in Mg2SiO4-Fe2SiO4 system as an interpretation of the 660-km discontinuity elevation Artem Chanyshev
Oral Presentation May 31 PM2
15:30 - 15:45 SIT14-17 Immiscibility of liquid Fe-Light-Element mixtures under high pressures using moleculer dynamics simulations based on machine-learning interatomic potential Satoshi Ohmura
15:45 - 16:00 SIT14-18 Density decrease by hydrogenation of Si-bearing Fe with hcp structure and its implication for the hydrogen content to the Earth's core Yuichiro Mori
16:00 - 16:15 SIT14-19 Waveform inversion for the 3D S-wave velocity structure in D″ beneath the Hawaiian Islands Keisuke Otsuru
16:15 - 16:30 SIT14-20 Viscosity of the lowermost lower mantle inferred from deformation of NaNiF3 as an analogue of (Mg,Fe)SiO3 Daisuke Yamazaki
16:30 - 16:45 SIT14-21 Partitioning of highly siderophiel elements between metal and silicate liquids up to lower mantle pressures Nozomi Kondo
Presentation No Title Presenter
Poster Presentation May 31 PM3
SIT14-P01 P- and S-wave velocities of lunar pyroxene composition under high pressure and high temperature conditions Yoshihiro Inoue
SIT14-P02 Origin of ancient magnetic field of the Moon decuced from electrical conductivity of ilmenite Takashi Yoshino
SIT14-P03 Five-step fractional crystallisation of a late Lunar Magma Ocean implication for primitive KREEP Dilan Harsha Fernando Diyalanthonige
SIT14-P04 Equation of state of high-spin FeS V and its stability field Satoru Urakawa
SIT14-P05 Significance of Nacrite in Subducting Slabs: A Deep Earth Overview Ishita Das
SIT14-P06 Valence state of iron in (Mg,Fe)SiO3 melts correlated with melt structure Mizuho Sakurahara
SIT14-P07 Substitutional effect of iron on water incorporation in hydrous ringwoodite constrained by multiple methods Youyue Zhang
SIT14-P08 Implications of Goethite and its polymorphs in the lower mantle: A first-principles approach Sparsh Sharma
SIT14-P09 Nitrogen solubility and speciation in oxidized magmas of planetesimals Takuto Akimoto
SIT14-P10 Axial temperature gradients in experimental cells for high-pressure multi-anvil apparatus Takuya Moriguti
SIT14-P11 Mapping the upper mantle discontinuities under the Australian continent with the Bayesian inference using azimuth-dependent receiver functions and multimode surface waves Kotaro Tarumi
SIT14-P12 Preliminary measurements of the splitted shear wave beneath Thailand by Thai Seismic Array (TSAR) Tarudee Autaijaratrasmee
SIT14-P13 Deformation-induced Crystallographic Preferred Orientation of δ-AlOOH at High Pressure and High Temperature Wentian Wu
SIT14-P14 Ab initio calculation of the polarized IR spectra of hydrous Bridgmanite Jun Tsuchiya
SIT14-P15 Deformation-induced crystallographic-preferred orientation of ε-FeOOH Yu Nishihara
SIT14-P16 The stability of CaMgSi2O6 cubic perovskite under high-pressure and high-temperature Kotaro Nakamura
SIT14-P17 Solid-liquid partitioning of ferrous iron and ferric iron under the mantle transition zone and lower mantle pressures Hideharu Kuwahara
SIT14-P18 Inferring the 3-D transversely isotropic structure in D" beneath Central America using waveform inversion RYOICHI ISHIBASHI
SIT14-P19 Structures and mechanical stabilities of various kinds of melts under the ULVZ condition based on first-principles calculations Kan Kitano
SIT14-P20 Adjoint inversion of antipodal PKPab waveforms for P wave velocity anomaly at the base of lower mantle and implications for dlnVs/dlnVp Seiji Tsuboi
SIT14-P21 Carbon partitioning during core-mantle differentiation constrained from ab initio simulations Shengxuan Huang
SIT14-P22 High pressure phase transitions and the equations of state of BaO Satoru Nakamura