Abstract
Simultaneous ultrasonic elastic wave velocity and in situ synchrotron X-ray measurements on grossular garnet were carried out up to 17 GPa and 1 650 K. P- and S-wave velocities and bulk and shear modulus showed linear pressure and temperature dependence. These data yielded a pressure derivative of the bulk modulus of 4.42(7) and a shear modulus of 1.27(3), which are in good agreement with those of garnets with variable chemical compositions. Temperature dependence of the bulk modulus of grossular (−1.36×10−2 GPa/K) is also similar to that of other garnets, while the temperature dependence of the shear modulus of grossular (−1.11×10−2 GPa/K) is higher than those of magnesium end-member garnets and pyrolitic garnet.
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This study was supported by the research proposal to SPring-8 by Y Kono (No. 2007B1648), the Grant-in-Aid for Scientific Research from the Japanese Government to T Irifune.
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Kono, Y., Gréaux, S., Higo, Y. et al. Pressure and temperature dependences of elastic properties of grossular garnet up to 17 GPa and 1 650 K. J. Earth Sci. 21, 782–791 (2010). https://doi.org/10.1007/s12583-010-0112-2
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DOI: https://doi.org/10.1007/s12583-010-0112-2