Measurement of the adiabats of quartz, forsterite, and magnesium oxide at high pressures and high temperatures and adiabatic gradient in the mantle

Details Measurement of the adiabats of quartz, forsterite, and magnesium oxide at high pressures and high temperatures and adiabatic gradient in the mantle Measurement of the adiabats of quartz, forsterite, and magnesium oxide at high pressures and high temperatures and adiabatic gradient in the mantle

Jul 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pepi...29..105b&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 29, Issue 1, p. 105-107.

Physics

2

Scientific paper

The geophysically-important adiabat (∂T/∂P)s has been measured at pressures up to 50 kbar and temperatures up to 1000°C. A simple power law describes the relationship between (∂T/∂P)s and the compression of the material. The power is independent of the material and of the temperature within the uncertainty. This consistency in the power allows the extrapolation of the adiabat to pressure and temperature conditions of the mantle of the earth. The adiabatic gradient is shown to be significantly smaller than the melting gradient.

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