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Corvallis, Oregon, crustal and upper mantle receiver structure from teleseismic P and S waves

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. http://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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http://bssa.geoscienceworld.org/content/67/3/713.abstractPublisherArticle
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.
Funders:
Funding AgencyGrant Number
Advanced Research Projects Agency (ARPA)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)F44620-72-C-0078
NSFEAR 76-06619
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Caltech Division of Geological and Planetary Sciences2827
Record Number:CaltechAUTHORS:20140812-164919957
Persistent URL:http://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:13 Feb 2019 18:06

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