Langston, Charles A. (1977) Corvallis, Oregon, crustal and upper mantle receiver structure from teleseismic P and S waves. Bulletin of the Seismological Society of America, 67 (3). pp. 713-724. ISSN 0037-1106. https://resolver.caltech.edu/CaltechAUTHORS:20140812-164919957
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Abstract
Structure under Corvallis, Oregon, was examined using long-period Ps and Sp conversions and P reverberations from teleseismic events as recorded at the WWSSN station COR. A distinct low-velocity zone in the uppermost mantle is inferred by modeling these phases in the time domain using a data set composed of six deep and intermediate-depth earthquakes. The lower boundary occurs at 45-km depth and has S and P velocity contrasts of 1.3 and 1.4 km/sec, respectively. The material comprising the low-velocity zone has a Poisson ratio of at least 0.33 and is constrained by the average P and S travel times determined from the converted phases. The top of the earth model conforms to previously published refraction results.
| Item Type: | Article | ||||||||
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| Additional Information: | Copyright © 1977, by the Seismological Society of America. Manuscript received September 23, 1976. This research was supported by the Advanced Research Projects Agency of the Department of Defense and was monitored by the Air Force Office of Scientific Research under Contract F44620-72-C-0078 and by the National Science Foundation Grant EAR 76-06619. | ||||||||
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| Issue or Number: | 3 | ||||||||
| Record Number: | CaltechAUTHORS:20140812-164919957 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140812-164919957 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 48465 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | George Porter | ||||||||
| Deposited On: | 13 Aug 2014 15:14 | ||||||||
| Last Modified: | 03 Oct 2019 07:04 |
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