Phonon thermal conductivity of geomaterials: relationship to the seismic parameter fi

A logarithmic relationship between the phonon thermal conductivity under normal conditions and seismic parameter F (or square of the hydrodynamical velocity of sound) for silicate and oxide minerals related to the Earth's interior is proposed. The considerations are based on Debye's theory of solid phase and on the seismic equations of state for minerals. In numerical calculations the thermodynamical laboratory data of several main silicates were also used.