JpGU Meeting 2019
Session outline| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Science of the Earth's Interior & Tectonophysics(IT) | |
| Session ID | S-IT25 | |
| Title | Planetary cores: Structure, formation, and evolution | |
| Short Title | Planetary cores | |
| Main Convener | Name | Hidenori Terasaki |
| Affiliation | Graduate School of Science, Osaka University | |
| Co-Convener 1 | Name | Eiji Ohtani |
| Affiliation | Department of Earth and Planetary Materials Science, Graduate School of Science, Tohoku University | |
| Co-Convener 2 | Name | William F McDonough |
| Affiliation | University of Maryland College Park | |
| Co-Convener 3 | Name | George Helffrich |
| Affiliation | Earth-Life Science Institute, Tokyo Institute of Technology | |
| Session Language | E | |
| Scope | There are fundamental links between the formation and evolution of planets and their satellites to that of their cores. Defining the physical and chemical properties of the cores of these terrestrial bodies are fundamental for understanding their internal structures and thermal profile. Recent advances in experimental and theoretical studies provide new insights and applications to the Earth's cores and other terrestrial bodies. Near-future exploration missions will obtain data on the internal structure of terrestrial planets (e.g., Mars and Mercury) and planet-satellite systems. We anticipate presentations on recent advances on the physical and chemical properties of cores and discussions regarding the latest views of their formation and evolution. We welcome contributions from mineral/rock physics, geophysics, geochemistry, geodynamics, and planetary science. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 30 AM1 | ||||
| 09:00 - 09:15 | SIT25-01 | High-pressure Equation of State of Schreibersite Fe2.15Ni0.85P: Implications for the Martian Core | Xuejing He | |
| 09:15 - 09:30 | SIT25-02 | Bottom-up solidification versus top-down solidification of the liquid core of the relatively small planetary bodies | Satoru Urakawa | |
| 09:30 - 09:45 | SIT25-03 | P-wave velocity of Fe3S under high pressure and temperature | Seiji Kamada | |
| 09:45 - 10:00 | SIT25-04 | The sound velocity of liquid Fe-Ni-S-Si alloys under Mercury’s core condition | Iori Yamada | |
| 10:00 - 10:15 | SIT25-05 | In situ observation of Rayleigh–Taylor instability growth of liquid Fe-Si using laser shock | Hidenori Terasaki | |
| Oral Presentation May 30 AM2 | ||||
| 10:45 - 11:00 | SIT25-06 | P-V-T equation-of-state of liquid Fe from ab-initio simulations to the TPa regime | Gerd Steinle-Neumann | |
| 11:00 - 11:15 | SIT25-07 | Ab initio study of Iron-Nickel alloys in Super-Earths cores | Francois Soubiran | |
| 11:15 - 11:30 | SIT25-08 | Impurity effect on the iron’s transport properties at Earth’s core conditions: A key constraint for the evolution of the Earth’s core | Youjun Zhang | |
| 11:30 - 11:45 | SIT25-09 | Melting in the Fe-FeO system to 214 GPa | Kenta Oka | |
| 11:45 - 12:00 | SIT25-10 | B2 phase in the inner core: constraints from high pressure experiments | Eiji Ohtani | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 30 PM2 | |||
| SIT25-P01 | Stratification of the Earth’s core by SiO2 crystallisation | George Helffrich | |
| SIT25-P02 | Relation between sound velocity and density for liquid iron alloys under Earth’s core pressures by laser-shock compression | Tatsuhiro Sakaiya | |
| SIT25-P03 | Geochemical estimates of Earth's core heat content at the end of accretion | Vincent Clesi | |
| SIT25-P04 | The effect of temperature on density of solid metals | Asaka Kamiya | |
| SIT25-P05 | Phase relations in the Fe-Ni-Si system at high pressures and high temperatures | Daijo Ikuta | |