Effect of cation substitution on bridgmanite elasticity: A key to interpret seismic anomalies in the lower mantle

Hiroshi Fukui, Akira Yoneda, Akihiko Nakatsuka, Noriyoshi Tsujino, Seiji Kamada, Eiji Ohtani, Anton Shatskiy, Naohisa Hirao, Satoshi Tsutsui, Hiroshi Uchiyama, Alfred Q.R. Baron

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Seismological observations show that, in some regions of the lower mantle, an increase in bulk sound velocity, interestingly, occurs in the same volume where there is a decrease in shear velocity. We show that this anti-correlated behavior occurs on cation substitution in bridgmanite by making single crystal elasticity measurements of MgSiO 3 and (Mg,Fe,Al)(Si,Al)O 3 using inelastic x-ray scattering in the ambient conditions. Cation substitution of ferrous iron and aluminum may explain large low shear velocity provinces in the lower mantle.

本文言語English
論文番号33337
ジャーナルScientific reports
6
DOI
出版ステータスPublished - 2016 9月 19

ASJC Scopus subject areas

  • 一般

フィンガープリント

「Effect of cation substitution on bridgmanite elasticity: A key to interpret seismic anomalies in the lower mantle」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル