Japan Geoscience Union Meeting 2021

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[E] Oral

S (Solid Earth Sciences ) » S-IT Science of the Earth's Interior & Techtonophysics

[S-IT17] Property and role of liquids inside terrestrial planets

Sat. Jun 5, 2021 3:30 PM - 5:00 PM Ch.23 (Zoom Room 23)

convener:Tatsuya Sakamaki(Department of Earth Science, Tohoku University), Yoichi Nakajima(Kumamoto University, Priority Organization for Innovation and Excellence), Chairperson:Tatsuya Sakamaki(Department of Earth Science, Tohoku University), Yoichi Nakajima(Kumamoto University, Priority Organization for Innovation and Excellence)

4:00 PM - 4:15 PM

[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)

Keywords: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.