GHz-DAC ultrasonics to investigate elasticity of the lower mantle constituents: Results of ferropericlase at 33 GPa

Takuto Kato; Akira Yoneda; Tadashi Kondo; Daisuke Yamazaki

Presentation information

[J] Poster

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

[S-MP23] Physics and Chemistry of Minerals

Fri. May 31, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Yuuki Hagiwara(Japan Agency for Marine-Earth Science and Technology), Nozomi Kondo(Institute for Planetary Materials, Okayama University), Sho Kakizawa(Japan Synchrotron Radiation Research Institute)

5:15 PM - 6:45 PM

[SMP23-P01] GHz-DAC ultrasonics to investigate elasticity of the lower mantle constituents: Results of ferropericlase at 33 GPa

Takuto Kato¹, *Akira Yoneda¹, Tadashi Kondo¹, Daisuke Yamazaki² (1.Department of Earth and Space Science, Osaka University, 2.Institute for Planetary Materials)

Keywords:elasticity, mantle, GHz ultrasonics, diamond anvil cell, feropericlase

We have extended the pressure range of the GHz-DAC ultrasonics beyond 30 GPa. We selected ferropericlase (Mg, Fe)O as the first lower mantle mineral to measure P and S wave velocities at the lower mantle condition; ferropericlase is the second most abundant mineral in the lower mantle and is known to undergo the spin transition in the pressure range of 40-60 GPa. Currently, we have succeeded the simultaneous P and S wave measurement at 33 GPa; we would like to show further results at the presentation.