Recovery of entire shocked samples in a range of pressure from ~100 GPa to Hugoniot elastic limit
| Autor: | Tadashi Kondo, Toshihiko Kadono, Yoichiro Hironaka, Keisuke Shigemori, T. Sakaiya, Masahiko Arakawa, Keita Nagaki, Kosuke Kurosawa |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Earth and Planetary Astrophysics (astro-ph.EP)
Diffraction Materials science 010504 meteorology & atmospheric sciences Opacity Scanning electron microscope Analytical chemistry FOS: Physical sciences Electron Laser 01 natural sciences law.invention Shock (mechanics) Crystal Geophysics Space and Planetary Science law 0103 physical sciences 010303 astronomy & astrophysics Quartz Astrophysics - Earth and Planetary Astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Meteoritics & Planetary Science. 51:1153-1162 |
| ISSN: | 1086-9379 |
| DOI: | 10.1111/maps.12654 |
| Popis: | We carried out laser shock experiments and wholly recovered shocked olivine and quartz samples. We investigated the petrographic features based on optical micrographs of sliced samples and found that each recovered sample comprises three regions, I (optically dark), II (opaque) and III (transparent). Scanning electron microscopy combined with electron back-scattered diffraction shows that there are no crystal features in the region I; the materials in the region I have once melted. Moreover, numerical calculations performed with the iSALE shock physics code suggest that the boundary between regions II and III corresponds to Hugoniot Elastic Limit (HEL). Thus, we succeeded in the recovery of the entire shocked samples experienced over a wide range of pressures from HEL (~ 10 GPa) to melting pressure (~ 100 GPa) in a hierarchical order. 53 pages, 11 figures, 4 tables, accepted for publication in Meteoritics and Planetary Science |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text