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pure and applied geophysics

, Volume 116, Issue 4–5, pp 900–912 | Cite as

Model studies of shear displacement along a pre-existing fault

  • O. G. Shamina
  • A. A. Pavlov
  • S. A. Strizhov
Article

Abstract

The faiture of pre-existing faults was studied experimentally and theoretically. The stress concentration around open and healed slits in plexiglas under uniaxial stress was calculated and compared to observations by Schlieren photographs. The rupture velocities along these pre-existing faults were found to vary from 0.25 of the shear velocity up to velocities slightly exceeding the shear velocity. Sudden fault dislocation was often preceded by stable sliding. The amplitudes of elastic waves radiated in the forward quadrant of the rupture were larger than the amplitudes in the backward quadrant.

Key words

Stick-slip Faulting experiments Rupture velocity 

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Copyright information

© Birkhäuser Verlag 1978

Authors and Affiliations

  • O. G. Shamina
  • A. A. Pavlov
  • S. A. Strizhov
    • 1
  1. 1.Institute of the Physics of the EarthAcademy of Sciences of the USSRMoscowUSSR

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