日本地球惑星科学連合2021年大会

講演情報

[E] 口頭発表

セッション記号 S (固体地球科学) » S-IT 地球内部科学・地球惑星テクトニクス

[S-IT17] 地球型惑星内部での液体の特性とその役割

2021年6月5日(土) 15:30 〜 17:00 Ch.23 (Zoom会場23)

コンビーナ:坂巻 竜也(東北大学大学院理学研究科)、中島 陽一(熊本大学大学院先導機構)、座長:坂巻 竜也(東北大学大学院理学研究科)、中島 陽一(熊本大学大学院先導機構)

16:00 〜 16:15

[SIT17-03] In situ X-ray study of liquid geomaterials under extreme conditions using Free-Electron Lasers

★Invited Papers

*Guillaume Morard1 (1.ISTerre, UGA, CNRS)

キーワード:Liquid silicates, Liquid iron alloys, Planetary Interior

Study of liquids and partial melting under extreme conditions is of great interest for the geophysical community, to understand the Magma Ocean dynamics during Early Earth stage as well as to constrain the present day Earth’s core dynamics and composition. However, probing geomaterials (e.g. silicates and iron alloys) in the liquid state under extreme conditions using Laser-Heated Diamond Anvil Cell could present several drawbacks, related to chemical contamination from the diamonds and chemical migration along temperature gradient. Studying the melting properties during transient state using the time-resolved capabilities of Free Electron Laser sources, under dynamic or static compression, can give access to physical properties of high quality for molten geomaterials.