JpGU-AGU Joint Meeting 2020

Session information

[E] Poster

P (Space and Planetary Sciences ) » P-CG Complex & General

[P-CG23] Shock responses of planetary materials elucidated from meteorites and laboratory experiments

convener:Takuo Okuchi(Institute for Planetary Materials, Okayama University), Toshimori Sekine(Center for High Pressure Science and Technology Advanced Research), Naotaka Tomioka(Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

Impact phenomena have been recognized to play essential roles in the processes of planetary evolution. Recent progresses in nanoscale analysis of meteorites, asteroid explorations, as well as laboratory experiments for simulating shock dynamics on planetary materials are collaboratively revealing complex effects of shock-induced processes in planetary evolution. Recently, several new metastable high-pressure phases have been identified in strongly shocked meteorites. Their occurrences indicate that the shock-induced physical states are far from thermodynamic equilibrium and contain very complicated processes. On the other hand, laboratory experiments including laser-driven shock techniques have recently been making remarkable progresses. They successfully simulate a variety of fast non-equilibrium processes at transient high-pressure conditions reaching tens to a few hundreds of gigapascals, that uniquely affect the physical and chemical properties of planetary materials upon impacts. Here we discuss how planetary materials are compressed, fractured, transformed, melted, and quenched during impact events by referring these recent studies. We welcome presentations from interdisciplinary research fields related to shock responses of planetary materials.

*Balazs Bradak1, Yusuke Seto2, Akos Kereszturi3,4, Martin Chadima5, Masayuki Hyodo6 (1.Department of Physics, University of Burgos, Burgos, Spain, 2.Department of Planetology, Kobe University, Kobe, Japan, 3.Konkoly Thege Miklos Astronomical Institute, Research Centre for Astronomy and Earth Sciences, MTA Centre for Excellence, Budapest, Hungary, 4.European Astrobiology Institute, virtual institute hosted by the European Science Foundation, Strasbourg, France, 5.AGICO Inc., Brno, Czech Republic, , 6.Research Center for Inland Seas, Kobe University, Kobe, Japan)

*Shuichi Matsukiyo1, Takumi Higuchi2, Hiroo Murakami2, Youichi Sakawa3, Taichi Morita1, Kentaro Tomita1, Ryo Yamazaki4, Takayoshi Sano3, Yasuhiro Kuramitsu5, Shuta J Tanaka4, Natsuki Ishizaka4, Shin Kakuchi4, Shuto Sei4, Kei Sugiyama4, Masato Ota3, Shunsuke Egashira3, Tomohiro Izumi3, Kentaro Sakai5, Takumi Minami5, Hiroki Nishioka2, Mariko Takagi2, Takuto Kojima2, Kento Aihara4, Shota Kanbayashi4, Sara Tomita4, Yoshiharu Nakagawa3, Takahiro Nishimoto5, Masaki Takano5 (1.Faculty of Engineering Sciences, Kyushu University, 2.Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 3.Institute of Laser Engineering, Osaka University, 4.Department of Physics and Mathematics, Aoyama Gakuin University, 5.Graduate School of Engineering, Osaka University)

*Yuhei Umeda1,2, Keiya Fukui1, Toshimori Sekine3,1, Marco Guaruaglini4, Alessandra Benuzzi-Mounaix4, Nobuki Kamimura1, Kento Katagiri1, Ryosuke Kodama1,2, Takeshi Matsuoka1, Kohei Miyanishi5, Alessandra Ravasio4, Takayoshi Sano2, Norimasa Ozaki1,2 (1.Graduate School of Engineering, Osaka University, 2.Institute of Laser Engineering, Osaka University, 3.Center for High Pressure Science & Technology Advanced Research, 4.Ecole Polytechnique, 5.Riken, Spring-8, SACLA)