Thermodynamic properties of San Carlos olivine at high temperature and high pressure

Thermodynamic properties of San Carlos olivine at high temperature and high pressure In this study, the thermal expansion and heat capacity of San Carlos olivine under high temperature and high pressure are reported. Combining accurate sound velocity data under different P–T conditions with density and heat capacity data at ambient pressure, the density, adiabatic bulk modulus, shear modulus, and most importantly, thermal expansion and heat capacity, of San Carlos are extracted to 14 GPa by a numerical procedure using classic thermodynamic relationships. These data are in agreement with published findings. To estimate the temperature gradient in the upper mantle, we also report the fitting equations of thermal expansion and heat capacity of San Carlos olivine as a function of both temperature and pressure to the P–T condition of the 410 km discontinuity, which provide the thermodynamic properties with increasing depth in the Earth’s interior. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chinese Journal of Geochemistry Springer Journals

Thermodynamic properties of San Carlos olivine at high temperature and high pressure

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Publisher
Science Press
Copyright
Copyright © 2018 by Science Press, Institute of Geochemistry, CAS and Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Earth Sciences; Geochemistry
ISSN
1000-9426
eISSN
2365-7499
D.O.I.
10.1007/s11631-018-0261-z
Publisher site
See Article on Publisher Site

Abstract

In this study, the thermal expansion and heat capacity of San Carlos olivine under high temperature and high pressure are reported. Combining accurate sound velocity data under different P–T conditions with density and heat capacity data at ambient pressure, the density, adiabatic bulk modulus, shear modulus, and most importantly, thermal expansion and heat capacity, of San Carlos are extracted to 14 GPa by a numerical procedure using classic thermodynamic relationships. These data are in agreement with published findings. To estimate the temperature gradient in the upper mantle, we also report the fitting equations of thermal expansion and heat capacity of San Carlos olivine as a function of both temperature and pressure to the P–T condition of the 410 km discontinuity, which provide the thermodynamic properties with increasing depth in the Earth’s interior.

Journal

Chinese Journal of GeochemistrySpringer Journals

Published: Feb 23, 2018

References

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