Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4

Norihito Mayama, Isao Suzuki, Toshiaki Saito, Ichiro Ohno, Tomoo Katsura, Akira Yoneda

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The elastic moduli of polycrystalline wadsleyite, β(Mg0.91Fe0.09)2SiO4, were measured up to 470 K by means of the resonant sphere technique. The adiabatic bulk (KS) and shear (μ) moduli were found to be 165.72(6) and 105.43(2) GPa at room temperature. The average slopes (dKs/dT and dμ/dT) in the range were determined to be the -0.0175(3) and -0.0159(1) GPa/K. We estimated that the P-, S-wave velocity and density jumps for the α- to β-phase transformation at the 410-km depth condition were 9.5, 11.2 and 5.4%, respectively. These results suggest that the olivine component at the depth should be 52 and 42 volume % for P- and S-waves.

Original languageEnglish
JournalGeophysical Research Letters
Volume31
Issue number4
Publication statusPublished - Feb 28 2004

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elastic modulus
S waves
S-wave
modulus of elasticity
wadsleyite
temperature dependence
shear modulus
P waves
olivine
P-wave
phase transformations
wave velocity
temperature
slopes
shear
room temperature

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Mayama, N., Suzuki, I., Saito, T., Ohno, I., Katsura, T., & Yoneda, A. (2004). Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4. Geophysical Research Letters, 31(4).

Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4. / Mayama, Norihito; Suzuki, Isao; Saito, Toshiaki; Ohno, Ichiro; Katsura, Tomoo; Yoneda, Akira.

In: Geophysical Research Letters, Vol. 31, No. 4, 28.02.2004.

Research output: Contribution to journalArticle

Mayama, N, Suzuki, I, Saito, T, Ohno, I, Katsura, T & Yoneda, A 2004, 'Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4', Geophysical Research Letters, vol. 31, no. 4.
Mayama N, Suzuki I, Saito T, Ohno I, Katsura T, Yoneda A. Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4. Geophysical Research Letters. 2004 Feb 28;31(4).
Mayama, Norihito ; Suzuki, Isao ; Saito, Toshiaki ; Ohno, Ichiro ; Katsura, Tomoo ; Yoneda, Akira. / Temperature dependence of elastic moduli of β-(Mg, Fe )2SiO4. In: Geophysical Research Letters. 2004 ; Vol. 31, No. 4.
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AU - Suzuki, Isao

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AU - Katsura, Tomoo

AU - Yoneda, Akira

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