Phase transition and elasticity of enstatite under pressure from experiments and first-principles studies

•MgSiO3 enstatite (Pbca) is investigated by X-ray diffraction, ultrasonic measurements, and first-principles calculations.•Pbca-P21/c transition results in a density increase of 1.4–1.5% with velocity change less than 1.5%.•Elastic constants of Pbca, P21/c, C2/c, P21ca and Pbca-II at high pressures...

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Veröffentlicht in:	Phys. Earth Planet. In 2014-03, Vol.228 (3, 2014), p.63-74
Hauptverfasser:	Li, Baosheng, Kung, Jennifer, Liu, Wei, Liebermann, Robert C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chains Compressibility Correlation Earth Elastic constants Enstatite First-principles Mathematical analysis Phase transformations Phase transition S waves Softening
Online-Zugang:	Volltext
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