HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) References Citation Map Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by WEIDNER, D. J. Search for Related Content GeoRef GeoRef Citation

The effect of oceanic sediments on surface-wave propagation

DEPARTMENT OF EARTH AND SPACE SCIENCES STATE UNIVERSITY OF NEW YORK, STONY BROOK, NEW YORK 11794

Abstract

Several characteristics of oceanic surface waves can be altered by the presence of low rigidity sediments along the propagation path. Love and Rayleigh waves from mid-Atlantic ridge earthquakes bear many effects of oceanic sediments. The general absence of these surface waves for periods shorter than about 15 sec can be attributed to either attenuation or scattering in thin sediments. Thin sediments also disperse short-period Love waves. Sediments whose thickness exceeds about 2 km are responsible for removing surface-wave energy with periods up to 40 sec. These sediments also alter the particle motion of Rayleigh waves and are responsible for a complicated dispersion relation. These thick sediments substantially reduce the surface-wave phase velocity at periods in excess of 100 sec.

This article has been cited by other articles:

				P. E. HARBEN and E. HJORTENBERG Variation in microseism power and direction of approach in northeast Greenland Bulletin of the Seismological Society of America, December 1, 1993; 83(6): 1939 - 1958. [Abstract] [PDF]