Shock compression of liquid silicates to 125 GPa: The anorthite-diopside join

• Published in: Journal of Geophysical Research: Solid Earth Vol. 115; no. B10
• Main Authors: Asimow, Paul D., Ahrens, Thomas J.
• Format: Journal Article
• Language: English
• Published: Washington, DC Blackwell Publishing Ltd 01.10.2010; American Geophysical Union
• Subjects: Earth sciences; Earth, ocean, space; equation of state; Exact sciences and technology; shock compression; silicate liquids; experimental studies; chain silicates; Earth Observing System; anorthite; feldspar; olivine; equations of state; aggregate; diopside; enstatite; Earth; pyroxene; silicates; framework silicates; clinopyroxene; particles; nesosilicates; models; orthopyroxene; Third order; isotherms; pressure; velocity; plagioclase; anomalies; finite strain; core-mantle boundary; new data; forsterite; Gruneisen parameters; compression; errors; Room temperature; theory

We determined the equation of state (EOS) of three silicate liquid compositions by shock compression of preheated samples up to 127 GPa. Diopside (Di; Ca2Mg2SiO6) at 1773 K, anorthite (An; CaAl2Si2O8) at 1923 K and the eutectic composition Di64An36 at 1673 K were previously studied by shock compress...