FEATURES OF RUPTURE FORMATION IN A RHEOLOGICALLY HETEROGENEOUS SEDIMENTARY COVER OVER ACTIVE FAULTS FOUNDATION : ACCORDING TO THE PHYSICAL MODELING RESULTS

Abstract

Physical modeling of the process of formation of the shear zone in single-layer ones is carried out in order to elucidate the features of fracture formation in the rheologically inhomogeneous sedimentary cover of the platform over the active fractures of the foundation. Model materials were montmorillonite clay water paste and wet sand. It is shown that the thickness of the deformable layer determines the width of the shear zone, the time of onset of rupture formation in it and the duration of the implementation of the stages of its development, and its rheological properties determine the features of its internal discontinuous structure.