Sound velocities of MgSiO3 perovskite and post-perovskite phase

Motohiko Murakami

研究成果: Review article査読

抄録

Brillouin scattering measurements of the aggregate shear wave velocities in MgSiO3 perovskite and post-perovskite phase were conducted at high-pressure conditions relevant to the Earth's lowermost mantle. Infrared laser annealing of samples in a diamond anvil cell enabled to obtain high quality Brillouin spectra and to extend the upper limit of pressure of Brillouin measurements. The large pressure range over which acoustic measurements of MgSiO3 perovskite and post-perovskite phase were performed has thereby allowed us to put tighter constraints on compositional models of the Earth's lower mantle and enigmatic seismic observations in the lowermost mantle.

本文言語English
ページ(範囲)21-30
ページ数10
ジャーナルReview of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
18
1
DOI
出版ステータスPublished - 2008

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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