R5: 地球外物質

[R5-17] フォルステライト単結晶のレーザー衝撃圧縮その場X線回折実験

*奥地 拓生¹、プレジャブ ナランゴー¹、尾崎 典雅²、瀬戸 雄介³、薮内 俊毅⁴ (1. 岡山大・惑星研、2. 大阪大・院工、3. 神戸大・院理、4. JASRI)

キーワード：レーザー衝撃圧縮実験、衝撃変成、フォルステライト

Primitive meteorites often show features of shock metamorphism, including occurrences of dense polymorphs of major mineral phases. The impact events that produced these polymorphs played essential roles in the history of early solar system evolution. Here we tried to reproduce such a dynamic transformation process starting from forsterite olivine single crystals by using very strong laser beam and x-ray free electron laser (XFEL) beam in combination at SACLA, SPring-8, Japan.