Abstract:Thermal regime of the Earth's outer core​

W. Ullmann and U. Walzer. Thermal regime of the Earth's outer core. Pure Appl. Geophysics, 119:59-79, 1980/81.

Thermal regime of the Earth's outer core

W. Ullmann and U. Walzer

Abstract

First an introduction into the dynamo problem and the core paradox is given. A novel theory of the volume dependence of Grüneisen's parameter is used for calculating the adiabatic temperatures on the assumption that the melting temperature of the material is reached at the boundary between the inner and outer cores of the Earth (IOB). On this condition, thermal convection throughout the outer core is impossible according to the melting-point curves of Kennedy and Higgins (1973) and Liu (1975), whereas it is permitted by that of Leppaluoto (1972), Boschi (1975), and Stacey (1977). Various possibilities of solving the core paradox are described.

Key words: Earth, Earth's core, dynamo, core paradox, Grüneisen parameter, adiabat, convection, melting temperature, melting point, geomagnetic field, outer core, electrons, thermodynamics, Bardeen equation, Born-Mie equation, equation of state, Vashchenko-Zubarev, iron, close-packed, Gilvarry

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