Bulletin of the Seismological Society of America
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Bulletin of the Seismological Society of America; June 1993; v. 83; no. 3; p. 890-906
© 1993 Seismological Society of America
This Article
Right arrow Full Text (PDF)
Right arrow References
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by KANG, I. B.
Right arrow Articles by MCMECHAN, G. A.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Effects of viscoelasticity on seismic wave propagation in fault zones, near-surface sediments, and inclusions

IK BUM KANG and GEORGE A. MCMECHAN

CENTER FOR LITHOSPHERIC STUDIES THE UNIVERSITY OF TEXAS AT DALLAS, P.O. BOX 830688, RICHARDSON, TX 75083-0688

Abstract

By defining anelastic effects through the superposition of relaxation mechanisms, and incorporating them into the wave equation in terms of memory variables, the time-domain computation of responses of viscoelastic media with arbitrary spatial variations is feasible. This approach is applied to simulation of the effects of realistic distribution of compressional and shear wave quality factors (Qp and Qs) in a sequence of viscoelastic models of increasing complexity from a homogeneous medium, to a fault zone, a near-surface attenuating zone, and inclusions with anomalous Qp and Qs values. Comparisons of elastic and viscoelastic responses for both surface and borehole recordings show pronounced Q-dependent attenuation; analysis of data from viscoelastic media using elastic, rather than a viscoelastic, model may result in misleading or erroneous interpretations.




This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
L. Ait Brahim, I. Mouayn, A. Abdelouafi, M. Benhalima, and B. Tadili
Geophysical and geological interpretation of discrepancies in site residuals in northern Morocco: a simple qualitative approach
Geological Society, London, Special Publications, January 1, 2006; 262(1): 119 - 129.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
H. Chang and G. A. McMechan
Numerical simulation of multi-parameter seismic scattering
Bulletin of the Seismological Society of America, December 1, 1996; 86(6): 1820 - 1829.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
M. Bouchon and O. Coutant
Calculation of synthetic seismograms in a laterally varying medium by the boundary element-discrete wavenumber method
Bulletin of the Seismological Society of America, December 1, 1994; 84(6): 1869 - 1881.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
Q. LIAO and G. A. MCMECHAN
2-D pseudo-spectral viscoacoustic modeling in a distributed-memory multi-processor computer
Bulletin of the Seismological Society of America, October 1, 1993; 83(5): 1345 - 1354.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1993 by the Seismological Society of America.