JpGU-AGU Joint Meeting 2020

Presentation information

[E] Oral

S (Solid Earth Sciences ) » S-MP Mineralogy & Petrology

[S-MP36] Physics and Chemistry of Minerals

convener:Seiji Kamada(Frontier Research Institute for Interdisciplinary Sciences, Tohoku University), Masahiro KAYAMA(Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo)

[SMP36-10] GHz ultrasonic velocity measurements of iron beyond the bcc-hcp transition

*Akira Yoneda1, Ryo Tsuruoka2, Seiji Kamada3, Hidenori Terasaki2 (1.Institute for Planetary Materials, Okayama University, 2.Graduate school of Science, Osaka Univ., 3.Frontier Research Institute for Interdisciplinary Sciences, Tohoku Univ.)

Keywords:CHz ultrasonic measurement, iron, high pressure

We have been developing GHz ultrasonic measurement in DAC up to ~15 GP both for P and S waves. This project of measuring iron was started after the achievements of preliminary work on KCl and natural olivine up to ~15 GPa (Yoneda et al., JpGU2019). We would like to present (1) additional technical improvements recently, and (2) preliminary experimental results at around 1GPa.