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Direct shock wave loading of Stishovite to 235 GPa: Implications for perovskite stability relative to an
 

Summary: Direct shock wave loading of Stishovite to 235 GPa:
Implications for perovskite stability relative to an
oxide assemblage at lower mantle conditions
Sheng-Nian Luo,1
J. L. Mosenfelder,2
P. D. Asimow,2
and Thomas J. Ahrens1
Received 7 June 2002; accepted 21 June 2002; published 25 July 2002.
[1] Pure stishovite and coesite samples with zero porosity
and dimensions appropriate for planar shock wave
experiments have been synthesized with multi-anvil high-
pressure techniques. The equation of state of stishovite is
obtained by direct shock wave loading up to 235 GPa: K0T =
306 5 GPa and K0T
0
= 5.0 0.2 where K0T and K0T
0
are
ambient bulk modulus and its pressure derivative,
respectively. The Hugoniots (shock equations of state) for

  

Source: Asimow, Paul D. - Division of Geological and Planetary Sciences, California Institute of Technology,

 

Collections: Geosciences