EarthRef.org Reference Database (ERR) -- Aizawa et al. 2004

EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information

Aizawa et al. 2004

Aizawa, Y., Yoneda, A., Katsura, T., Ito, E., Saito, T. and Suzuki, I. (2004). Temperature derivatives of elastic moduli of MgSiO₃ perovskite. Geophysical Research Letters 31: doi: 10.1029/2003GL018762. issn: 0094-8276.

Elastic properties of polycrystalline MgSiO3 perovskite were determined by means of resonance sphere technique at temperatures from 258 to 318 K under atmospheric pressure. The temperature derivatives of adiabatic bulk (∂KS/∂T)P and shear moduli (∂G/∂T)P are -0.029(2) GPa/K and -0.024(1) GPa/K, respectively. Applying the present results in interpretation of seismological observations, we suggest that the chemical composition of the earth's lower mantle is pyrolitic at the potential temperature of 1600 K.

BACKGROUND DATA FILES

	Abstract

Keywords
Mineral Physics, Mineral Physics, Elasticity and anelasticity, Mineral Physics, Instruments and techniques

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org