Open AccessA three‐dimensional viscoelastic model of a strike slip fault
Author(s) -
Rundle J. B.,
Jackson D. D.
Publication year - 1977
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1977.tb01305.x
Subject(s) - viscoelasticity , slip (aerodynamics) , half space , strike slip tectonics , geology , geometry , mathematical analysis , fault (geology) , mechanics , mathematics , physics , seismology , thermodynamics
Summary An analytic approximation to the Green's function for the displacements due to a strike slip point source in an elastic layer over a visco‐elastic half‐space is developed. This approximate Green's function is useful because it can be analytically integrated over the fault surface. Comparison with a numerical integration of the exact solution integral indicates that the approximation is quite good. The approximate Green's function is integrated analytically to obtain the displacements due to a finite rectangular strike slip fault in an elastic layer over a viscoelastic half‐space. Ground displacements and angle changes from a model survey net are computed to illustrate the viscoelastic relaxation which follows a fracture in the elastic region.