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; January 1962; v. 52; no. 1; p. 59-66
© 1962 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 GILBERT, F.
Right arrow Articles by LASTER, S. J.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Experimental investigation of PL modes in a single layer

FREEMAN GILBERT and STANLEY J. LASTER

GEOPHYSICAL SERVICE INC., DALLAS 35, TEXAS

Abstract

A two dimensional seismic model has been set up to simulate the problem of elastic wave propagation in a single layer overlying a uniform half space. Both the source and the receiver are mounted on the free surface of the layer. Seismograms are presented as a funciton of range. In addition to the Rayleigh and shear modes, PL modes are observed. Experimentally determined phase and group velocities compare fairly well with theoretical curves. The decay factor for PL is maximum at the arrival time of P waves in the half-space. There is also a secondary maximum at the arrival time of P waves in the layer. Although the decay of PL is small, phase equalization of PL does not yield the initial pulse shape because the mode embraces an insufficient frequency band to permit good resolution.

Footnotes

Freeman Gilbert is now at Institute of Geophysics, University of California at San Diego, La Jolla, California.




This article has been cited by other articles:


Home page
 Bulletin of the Seismological Society of AmericaHome page
F. ABRAMOVICI, L. H. T. LE, and E. R. KANASEWICH
The evanescent wave in Cagniard's problem for a line source generating SH waves
Bulletin of the Seismological Society of America, December 1, 1989; 79(6): 1941 - 1955.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
A. M. DAINTY
Leaking modes in a crust with a surface layer
Bulletin of the Seismological Society of America, February 1, 1971; 61(1): 93 - 107.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
F. ABRAMOVICI
Numerical seismograms for a layered elastic solid
Bulletin of the Seismological Society of America, December 1, 1970; 60(6): 1861 - 1876.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
A.-B. K. IBRAHIM
Leaking and normal modes as a means to determine crust-upper mantle structure for different paths to Sweden
Bulletin of the Seismological Society of America, August 1, 1969; 59(4): 1695 - 1712.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
F. ABRAMOVICI
Diagnostic diagrams and transfer functions for oceanic wave-guides
Bulletin of the Seismological Society of America, February 1, 1968; 58(1): 427 - 456.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
S. S. SU and J. DORMAN
The use of leaking modes in seismogram interpretation and in studies of crust-mantle structure
Bulletin of the Seismological Society of America, December 1, 1965; 55(6): 989 - 1021.
[Abstract] [PDF]

Home page
 Bulletin of the Seismological Society of AmericaHome page
J. OLIVER
Propagation of PL waves across the United States
Bulletin of the Seismological Society of America, February 1, 1964; 54(1): 151 - 160.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1962 by the Seismological Society of America.