Rare earth element (REE) abundances in clinopyroxene and garnet from xenoliths entrained by kimberlites of the Kaapvaal craton, South Africa, and the Somerset Island, Canada, show a strong and species-dependent variation ...

The problem of propagation of plane thermal and thermoelastic seismic waves in a generalized quasielastic four-element Maxwell's body has been solved. The analytical dispersive formulas have been obtained for the phase ...