Solid Earth Sciences(S)
Session Sub-categoryScience of the Earth's Interior & Tectonophysics
Session IDS-IT20
TitleStructure and Dynamics of Earth and Planetary Mantles
Short TitleMantle Structure and Dynamics
Main ConvenerNameTakashi Yoshino
AffiliationInstitute for Planetary Materials, Okayama University
Co-Convener 1NameDapeng Zhao
AffiliationDepartment of Geophysics, Tohoku University
Co-Convener 2NameTakashi Nakagawa
Session LanguageEE
ScopeInterdisciplinary approach can lead to a better understanding of dynamics and evolution of the deep interiors of the Earth and planets. We welcome any submissions of recent results in observational, theoretical and experimental studies on seismology, geomagnetism, mineral physics, dynamics of deep interiors, and any other relevant fields from researchers in many countries. Integration of such results is also welcome. In particular, we encourage any contributions focusing on "plate and mantle dynamics in Earth and terrestrial planets".
Presentation FormatOral and Poster presentation
Joint Session withAGU
Time Presentation No Title Presenter Abstract
Oral Presentation May 21 AM1
09:00 - 09:15 SIT20-01Evolution of the lithosphere in the Indian Ocean from combined earthquake and ambient noise tomographyZhitu Ma Abstract
09:15 - 09:30 SIT20-02Shear wave splitting parameters from the largest aftershock of the 2015 Ogasawara deep earthquakeKeiko Kuge Abstract
09:30 - 09:45 SIT20-03A simple ‘vote map’ methodology for imaging mantle features across alternative tomography models Grace Shephard Abstract
09:45 - 10:00 SIT20-04Quantify chemical stratification in the mantle transition zone using USArray dataTeh-Ru Alex Song Abstract
10:00 - 10:15 SIT20-05High-Pressure phase transitions of zircon: phase relations based on thermodynamic measurements and application to the mantleMasaki Akaogi Abstract
10:15 - 10:30 SIT20-06Incorporation mechanisms of hydrogen in enstatiteXianyu Xue Abstract
Oral Presentation May 21 AM2
10:45 - 11:00 SIT20-07Two-dimensional numerical simulations on the dynamics of cold descending slabs in the mantle: important roles of trench migrationMana Tsuchida Abstract
11:00 - 11:15 SIT20-08Kinetics of the two-stage post-spinel transformation under subduction zone conditions: Implications for mantle flow across the 660-km discontinuityTomoaki Kubo Abstract
11:15 - 11:30 SIT20-09Fluorine sink in Earth’s lower mantle: solubility and substitution mechanism in bridgmaniteJaseem Vazhakuttiyakam Abstract
11:30 - 11:45 SIT20-10Low-pressure analogs of MgSiO3 post-perovskite at ultrahigh pressures by first principlesKoichiro Umemoto Abstract
11:45 - 12:00 SIT20-11Core-mantle interaction evidence from SiO2 dispersal in Earth's lower mantleGeorge Helffrich Abstract
12:00 - 12:15 SIT20-12Is the lower mantle dry?Shigenori Maruyama Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 21 Core Time
SIT20-P01 Origin of Ocean floor,Origin of Earth's plate tectonics, Proof of Driving Force, Mechanism of Slipping Inside Plates,Verification by abduction - by one-time evolution of the earth and empirical history - Akira Taneko Abstract
SIT20-P02 Web Application for 3-D visualization of Global Seismic Tomography Models Hiroki Ichikawa Abstract
SIT20-P03 Mechanical coupling of plate motion with the subducted slab penetrating into the lowermost mantle Takeo Kaneko Abstract
SIT20-P04 A new approach to thermal-mechanical modeling of subducting slab with real-time update of thermal boundary condition in a framework of solid mechanics Jae-Yoon Keum Abstract
SIT20-P05 Importance of a thin, low viscosity layer on top of the slab for rock deformation and fluid migration in subduction zones Manabu Morishige Abstract
SIT20-P06 Effects of pressure and water on electrical conductivity of carbonate melt with implications for conductivity anomaly in continental mantle lithosphere Takashi Yoshino Abstract
SIT20-P07 Simultaneous measurement of thermal conductivity and diffusivity for fayalite and its γ- phase Youyue Zhang Abstract
SIT20-P08 TEM observation in the samples of high-pressure in-situ IR experiments Moe Sakurai Abstract
SIT20-P09 Coupled substitution of Fe3+ and H+ for Si in wadsleyite Takaaki Kawazoe Abstract
SIT20-P10 Crystallographic preferred orientation and rheological property of the dense hydrous magnesium silicate phase A Rei Shiraishi Abstract