MISC

2005年2月

Temperature dependence of the elastic moduli of ringwoodite

PHYSICS OF THE EARTH AND PLANETARY INTERIORS
  • N Mayama
  • ,
  • Suzuki, I
  • ,
  • T Saito
  • ,
  • Ohno, I
  • ,
  • T Katsura
  • ,
  • A Yoneda

148
2-4
開始ページ
353
終了ページ
359
記述言語
英語
掲載種別
DOI
10.1016/j.pepi.2004.09.007
出版者・発行元
ELSEVIER SCIENCE BV

The elastic moduli of polycrystalline ringwoodite, (Mg-0.91 Fe-0.09)(2)SiO4, were measured up to 470 K by means of the resonant sphere technique. The adiabatic bulk (K-S) and shear (mu) moduli were found to be 185.1(2) and 118.22(6) GPa at room temperature, and the average slopes of dK(S)/dT and dmu/dT in the temperature range of the study were determined to be -0.0193(9) and -0.0148(3) GPa/K, respectively. Using these results, we estimate seismic wave velocity jumps for a pure olivine mantle model at 520 km depth. We find that the jump for the S-wave velocity is about 1.5 times larger than that for the P-wave velocity at this depth. This suggests that velocity jumps at the 520 km discontinuity are easier to detect using S-waves than P-waves. (C) 2004 Elsevier B.V. All rights reserved.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1016/j.pepi.2004.09.007
CiNii Articles
http://ci.nii.ac.jp/naid/10016768861
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000227109400014&DestApp=WOS_CPL