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Russian Geology and Geophysics

2004 year, number 3

PROPAGATION OF SEISMIC WAVES IN SOLIDS

E.B. Sibiryakov
Institute of Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Microheterogeneity, microstructure, static and dynamic elastic moduli, mean grain size, mean number of grain contacts
Pages: 361-365

Abstract

Propagation of seismic waves in solids is described by equations including grain interaction rather than the standard equation of state. The new approach allows prediction of some physical properties of solids from seismic data.
The modeling results provide explanations for the difference between the measured static and dynamic elastic moduli and for the density dependence of sound velocity (increases with density in nonmetals and decreases in metals).
The theoretical results were tested against known experimental data and showed good agreement.