The activation energy of viscoelastic deformation of rocks

The suggested model, which considers the simultaneous appearance (on the intermolecular scale) of elastic and viscous behaviours of rocks during their viscoelastic deformation, enables the relaxation time, t0, of the viscoelastic deformation energy to be defined. By determination of t 0 , the activation energies of the elas- tic and viscous deformation can be separated from the temperature dependence of the viscoelastic deformation energy stream U. The probabilistic approach to viscoelastic deformation of rocks allows the introduction of the a notion of the total probability, consisting of the probabilities of elastic and viscous deformations.