[P-CG22] Shock responses of planetary materials elucidated from meteorites and dynamic compression experiments

Tue. May 28, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Toshimori Sekine(Center for High Pressure Science and Technology Advanced Research), Takuo Okuchi(Institute for Planetary Materials, Okayama University)

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.

[PCG22-P01] discussion

*Takuo Okuchi¹, Toshimori Sekine² (1.Institute for Planetary Materials, Okayama University, 2.Center for High Pressure Science and Technology Advanced Research)

[PCG22-P02] Shock-compressed behavior
of quartz by XFEL

*Tomoko Sato¹, Yoshinori Tange², Yusuke Seto³, Toshimori Sekine^4,5, Norimasa Ozaki⁴, Toyohito Nishikawa⁴, Kohei Miyanishi⁴, Kensuke Matsuoka⁴, Ryosuke Kodama⁴, Tadashi Togashi², Yuichi Inubushi², Toshinori Yabuuchi⁶, Makina Yabashi⁶ (1.Hiroshima University, 2.Japan Synchrotron Radiation Research Institute, 3.Kobe University, 4.Osaka University, 5.Center for High Pressure Science &Technology Advanced Research, 6.RIKEN)

[PCG22-P04] Laser-shock experiments of dense polymorphs of Mg₂SiO₄: technical developments using synthetic single crystals

*Narangoo Purevjav¹, Takuo Okuchi¹, Norimasa Ozaki², Takayoshi Sano³, Yuhei Umeda², Shintaro Morioka², Nobuki Kamimura² (1.Institute for Planetary Materials, Okayama University, 2.Graduate School of Engineering, Osaka University, 3.Institute of Laser Engineering, Osaka University)

[PCG22-P05] Richtmyer-Meshkov instability in inhomogeneous density materials and its application to planetary science

*Takayoshi Sano¹ (1.Institute of Laser Engineering, Osaka University)

[PCG22-P06] Impact-induced dehydration reactions of Fe- and Al-hydrates as potential storage, carrier and source of water

*Tsubasa Tobase¹, Toshimori Sekine¹, Ginga Kitahara², Makoto Tokuda², Akira Yoshiasa², Makoto Takafuji², Tsutomu Mashimo², Nobuaki Kawai² (1.HPSTAR, 2.Graduate School of Science and Technology, Kumamoto University)

[PCG22-P07] Crystallization of amorphous MgSiO₃ by shock compression

*Akane Arasuna¹, Masayuki Okuno¹, Nobuaki Kawai² (1.Kanazawa University, 2.Kumamoto University)

[PCG22-P08] First-principle study of the structural and electronic properties of N-doped MgAl₂O₄ spinel

*Chi Pui Tang¹, Pak Kin Leong¹, Toshimori Sekine^2,3 (1.State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology, 2.Center for High Pressure Science and Technology Advanced Research (HPSTAR) Shanghai Laboratory of HPSTAR, Shanghai, P.R. China, 3.Graduate School of Engineering, Osaka University)

[PCG22-P09] Transparency of shock-compressed single crystal diamond

*Kento Katagiri¹, Norimasa Ozaki^1,2, Kohei Miyanishi², Yuhei Umeda¹, Shintaro Morioka¹, Takayoshi Sano², Ryosuke Kodama^1,2 (1.Osaka University, 2.Institute of Laser Engineering, Osaka Unversity)

[PCG22-P10] Pb-Pb dating of the NWA 7203 angrite and relationship to its shock metamorphism

*Hideyuki Hayashi¹, Takashi Mikouchi¹, Yuji Sano¹, Martin Bizzarro² (1.The university of Tokyo, 2.University of Copenhagen)

[PCG22-P11] Shock recovery of high-pressure phase of SiO₂ using high-power laser

*Tadashi Kondo¹, Hiromoto Kengo¹, Tatsuhiro Sakaiya¹, Hidenori Terasaki¹, Keisuke Shigemori², Youichiro Hironaka² (1.Department of Earth and Space Science, Graduate School of Science Osaka University, 2.Institute of Laser Engineering, Osaka University)

[PCG22-P12] Hugoniot measurement of calcite under meteorite collision condition

*Fukui Keiya¹, Norimasa Ozaki^1,2, Yuhei Umeda¹, Kohei Miyanishi³, Kento Katagiri¹, Shintaro Morioka¹, Takayoshi Sano³, Ryosuke Kodama^1,2,3 (1.Graduate School of Engineering,Osaka univ., 2.PPC, Osaka Univ., 3.ILE, Osaka Univ.)

[PCG22-P13] Direct observation of the transformation toughening of tetragonal stabilized zirconia under shock deformation condition by ns time-resolved XRD.

*Sota Takagi^1,2, Kouhei Ichiyanagi^2,3, Nobuaki Kawai⁴, Ryo Fukaya², Shunsuke Nozawa², Atsushi Kyono¹, Nobumasa Funamori², Shin-ichi Adachi² (1.University of Tsukuba, 2.KEK PF, 3.Jichi Medical University, 4.Kumamoto University)

Session information