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Shear-wave travel times from SS

Butler, Rhett (1979) Shear-wave travel times from SS. Bulletin of the Seismological Society of America, 69 (6). pp. 1715-1732. ISSN 0037-1106.

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The seismic shear phase SS is considered as a tool in the reconnaissance of the Earth. The Hibert transform is empirically verified as a reasonable mimic of the distortion incurred at the internal caustic in the propagation of SS. Travel times are obtained by a waveform correlation technique for 26 well-recorded SHSH waves from the 1968 Borrego Mountain earthquake. Significant variation is found in the travel-time residuals for paths reflected under the Canadian shield. A correlation of the variation with tectonic sub-province is suggested. The data are sufficiently precise to indicate lateral heterogeneity of several percent in the upper mantle velocities within the Canadian shield.

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Additional Information:© 1979 Seismological Society of America. Manuscript received January 3, 1979. I would like to thank Don Helmberger and Don Anderson for their continuing interest in this research. The support of the Fannie and John Hertz Foundation is gratefully acknowledged. This research was supported by the Earth Sciences Section National Science Foundation Grant EAR 78-14786 and EAR 78-23681.
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Fannie and John Hertz FoundationUNSPECIFIED
NSFEAR 78-14786
NSFEAR 78-23681
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Caltech Division of Geological and Planetary Sciences3184
Issue or Number:6
Record Number:CaltechAUTHORS:20140912-095846141
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49654
Deposited By: Tony Diaz
Deposited On:12 Sep 2014 23:49
Last Modified:03 Oct 2019 07:15

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