Solid Earth Sciences(S) | ||
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Session Sub-category | Science of the Earth's Interior & Tectonophysics | |
Session ID | S-IT18 | |
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 | EE | |
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. 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 | |
Invited Authors |
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Time | Presentation No | Title | Presenter | Abstract |
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Oral Presentation May 21 PM1 | ||||
13:45 - 14:00 | SIT18-01 | Origin of the core, and species of light elements in the core | Shigenori Maruyama | Abstract |
14:00 - 14:15 | SIT18-02 | Compressional velocity of hcp Fe-Si alloy by inelastic X-ray scattering and composition of the inner core | Eiji Ohtani | Abstract |
14:15 - 14:30 | SIT18-03 | Si diffusion in γ-iron at high pressure | Noriyoshi Tsujino | Abstract |
14:30 - 14:45 | SIT18-04 | Elastic wave velocity of Fe-Si alloy at high pressure | Tatsuya Sakamaki | Abstract |
14:45 - 15:00 | SIT18-05 | The Fe-Fe2P and Ni-Ni2P phase diagrams at 6 GPa | Konstantin Litasov | Abstract |
15:00 - 15:15 | SIT18-06 | Effect of pressure and sulfur content on sound velocity in liquid Fe-S to 20 GPa | Keisuke Nishida | Abstract |
Oral Presentation May 21 PM2 | ||||
15:30 - 15:55 | SIT18-07 | Mineral-physics constraints on planetary cores: the Fe-FeS and the Fe-FeSi systems | Daniele Antonangeli | Abstract |
15:55 - 16:20 | SIT18-08 | Metallic core and interior evolution of icy bodies | Jun Kimura | Abstract |
16:20 - 16:45 | SIT18-09 | Experimentally inferred thermal conductivity of planetary cores | Kenji Ohta | Abstract |
16:45 - 17:00 | SIT18-10 | Thorium and uranium power plate tectonics, but not the geodynamo | William F McDonough | Abstract |
Presentation No | Title | Presenter | Abstract |
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Poster Presentation May 21 Core Time | |||
SIT18-P01 | Sound velocity of liquid Fe-Ni-S-Si at Mercury outer core condition | Yamada Iori | Abstract |
SIT18-P02 | Core composition of Mercury estimated from elastic properties of liquid Fe-Ni-alloy | Hidenori Terasaki | Abstract |
SIT18-P03 | Mercury's core detected by MESSENGER's vector magnetic data | Hiroaki TOH | Abstract |
SIT18-P04 | Effect of silicon on initial friction of iron | Chao Liu | Abstract |
SIT18-P05 | Stratification of the Earth's core by SiO2 crystallization | George Helffrich | Abstract |
SIT18-P06 | Study of differentiation process between metal and silicate induced from shock impact events | Tatsuhiro Sakaiya | Abstract |