Detection, analysis, and interpretation of teleseismic signals: 1. Compressional Phases from the Salmon Event
- Creators
- Archambeau, C. B.
- Flinn, E. A.
- Lambert, D. G.
Abstract
The travel times and amplitude spectrums of first- and later-arrival P phases from the Salmon event are computed on the basis of polarization filter outputs. The interpretation of the P wave radiation field is made in terms of crust and mantle structure using the first- and later-arrival P phases and their amplitude spectrums. The observed seismic field corresponds with that expected from a symmetric, purely compressive source. The essential features of the observed travel times and amplitudes are explained in terms of regional mantle structures. These structures provide first-order fits to the observed data and are characterized by low-velocity zones which terminate with rapid and continuous increases in velocity near depths of 130 km. The velocity structures also show a strong velocity gradient near 330 km. The regional models differ most strongly in the relative extent and magnitude of the velocity decrease in the Iow-velocity zone.
Additional Information
Copyright 1966 by the American Geophysical Union. (Manuscript received February 16, 1966; revised April 8, 1966.) This research was supported by the U.S. Atomic Energy Commission in cooperation with the Advanced Research Projects Agency, Nuclear Test Detection Office, and was monitored by the Air Force Technical Applications Center under contract AF 33(657)-12447.Attached Files
Published - jgr5100.pdf
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Additional details
- Eprint ID
- 51473
- Resolver ID
- CaltechAUTHORS:20141107-165123429
- Atomic Energy Commission
- Advanced Research Projects Agency (ARPA)
- AF 33(657)-12447
- Air Force Office of Scientific Research (AFOSR)
- Created
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2014-11-10Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field