JpGU Meeting 2019
Session outline| Space and Planetary Sciences (P) | ||
|---|---|---|
| Session Sub-category | Complex & General(CG) | |
| Session ID | P-CG22 | |
| Title | Shock responses of planetary materials elucidated from meteorites and dynamic compression experiments | |
| Short Title | Shock responses of planetary materials | |
| Main Convener | Name | Toshimori Sekine |
| Affiliation | Graduate School of Engineering, Osaka University | |
| Co-Convener 1 | Name | Takuo Okuchi |
| Affiliation | Institute for Planetary Materials, Okayama University | |
| Session Language | E | |
| Scope | Impact phenomena had played essential roles in the process of planetary evolution. Recent analytical and experimental developments reveal a new prospective on the effects of shock-compression process for planetary materials. For deeper understanding of such shock effects, it is necessary to evaluate the detailed shock conditions from the observations of naturally-shocked planetary materials, and to compare them with the results on the planetary materials experienced a wide range of known shock conditions. Several metastable phases, that have not been known before, have recently been identified in shocked meteorites. They suggest that the shock state is often not in equilibrium and that it is more complicated process than ever thought. Experimental techniques including laser-driven shock compression and x-ray free electron laser diagnostics have been progressed to successfully simulate a wide range of shock conditions. The recent results indicate that shocked grains are fractured and rotated at relatively low pressures, and that they are subsequently transformed into denser phases or melts, or their mixtures at pressures of a few 100s GPa. Understanding of such shock dynamics requires another prospect, which is qualitatively different from the static high pressure and high temperature consensus. Therefore, it is timely to have an international symposium on dynamics of planetary materials. | |
| Presentation Format | Oral and Poster presentation | |
| Invited Authors | Yongjae Lee (Yonsei University) Hao Liu (Laser fusion research center) Ai-Cheng Zhang (School of Earth Sciences and Engineering, Nanjing University, China) Naotaka Tomioka (Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology) Norimasa Ozaki (Osaka University) Masahiro KAYAMA (Department of Earth and Planetary Material Sciences, Faculty of Science, Tohoku University) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 28 PM1 | ||||
| 13:45 - 14:00 | PCG22-01 | Shock-induced phase transformation in howardite-eucrite-diogenite meteorites | Ai-Cheng Zhang | |
| 14:00 - 14:15 | PCG22-02 | Lattice-shear-induced metastable formation of high-pressure silicates in shocked meteorites | Naotaka Tomioka | |
| 14:15 - 14:30 | PCG22-03 | Can high-pressure polymorphs clarify an ordinary chondrite parent-body breakup? | Masaaki Miyahara | |
| 14:30 - 14:45 | PCG22-04 | Linking occurrence and texture of dense silicate minerals in shocked meteorites with laser-shock experimental results of Mg2SiO4 analyzed by XFEL probe | Takuo Okuchi | |
| 14:45 - 15:00 | PCG22-05 | Laser-shock evolution of organic molecules in carbonaceous meteorite | Hikaru Yabuta | |
| 15:00 - 15:15 | PCG22-06 | Shock barometer using cathodoluminescence and synchrotron angle-dispersive x-ray diffraction analyses of minerals | Masahiro KAYAMA | |
| Oral Presentation May 28 PM2 | ||||
| 15:30 - 15:45 | PCG22-07 | Dynamic Compression at Pohang X-ray Free Electron Laser Facility (PAL-XFEL) | Yongjae Lee | |
| 15:45 - 16:00 | PCG22-08 | Exploration of extreme melt states of silicate usign high-power laser and XFEL | Norimasa Ozaki | |
| 16:00 - 16:15 | PCG22-09 | Hugoniot measurements for silicate: Understanding silicate magma under the planetary impacts | Yuhei Umeda | |
| 16:15 - 16:30 | PCG22-10 | An experimental design to determine iron melting at the Earth’s core conditions via in-situ X-ray diffraction technique at high power laser facility | Hao Liu | |
| 16:30 - 16:45 | PCG22-11 | Study on transport properties of liquid iron and iron alloy under high temperature and high pressure using the laser shock technique | Kohei Miyanishi | |
| 16:45 - 17:00 | PCG22-12 | Laser shock compression in LFRC | Liang Sun | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 28 AM2 | |||
| PCG22-P01 | discussion | Takuo Okuchi | |
| PCG22-P02 | Shock-compressed behavior of quartz by XFEL | Tomoko Sato | |
| PCG22-P04 | Laser-shock experiments of dense polymorphs of Mg2SiO4: technical developments using synthetic single crystals | Narangoo Purevjav | |
| PCG22-P05 | Richtmyer-Meshkov instability in inhomogeneous density materials and its application to planetary science | Takayoshi Sano | |
| PCG22-P06 | Impact-induced dehydration reactions of Fe- and Al-hydrates as potential storage, carrier and source of water | Tsubasa Tobase | |
| PCG22-P07 | Crystallization of amorphous MgSiO3 by shock compression | Akane Arasuna | |
| PCG22-P08 | First-principle study of the structural and electronic properties of N-doped MgAl2O4 spinel | Chi Pui Tang | |
| PCG22-P09 | Transparency of shock-compressed single crystal diamond | Kento Katagiri | |
| PCG22-P10 | Pb-Pb dating of the NWA 7203 angrite and relationship to its shock metamorphism | Hideyuki Hayashi | |
| PCG22-P11 | Shock recovery of high-pressure phase of SiO2 using high-power laser | Tadashi Kondo | |
| PCG22-P12 | Hugoniot measurement of calcite under meteorite collision condition | Fukui Keiya | |
| PCG22-P13 | Direct observation of the transformation toughening of tetragonal stabilized zirconia under shock deformation condition by ns time-resolved XRD. | Sota Takagi | |