Journal : Acta Geophysica
Article : Molecular transport in fracture processes

Authors :
Eshagh, M.
Division of Geodesy and Geoinformatics, Royal Institute of Technology (KTH), Stockholm, Sweden; Department of Geodesy, K.N.Toosi University of Technology, Tehran, Iran,,
Teisseyre, R.
Institute of Geophysics, Polish Academy of Sciences, Warszawa, Poland,,
Abstract : The Asymmetric Continuum Theory based on deformation fields includes the strain rotation as an equally important deformation part as the shear and confining strains; all these fields can be related to their origin in the fracture processes by some displacement motions in a source. Some of these motions may belong to an individual process, some to complex correlated events ; in this latter case the displacements related to these strains could be shifted in phase. Moreover, we may expect an appearance of some molecular transport motions; the molecular transport may be helpful for understanding an interaction of the molecular processes and related molecular momentum flux. These correlated events should be mutually related in a source by the release-rebound mecha- nism. In particular, we consider the point fracture events as associated with a confining load or /and with the shear and rotation processes; we discuss the related effects and their meaning when discussing the fault plane mechanism and emitted waves. It is to be pointed out that such molecular motions are too small to be observed by the existing seismological networks.

Keywords : molecular transport, fracture mechanics,
Publishing house : Instytut Geofizyki PAN
Publication date : 2013
Number : Vol. 61, no. 1
Page : 18 – 25

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Qute : Eshagh, M. ,Teisseyre, R. ,Teisseyre, R. , Molecular transport in fracture processes. Acta Geophysica Vol. 61, no. 1/2013