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Attenuation of seismic waves in the earth's mantle

Gutenberg, B. (1958) Attenuation of seismic waves in the earth's mantle. Bulletin of the Seismological Society of America, 48 (3). pp. 269-282. ISSN 0037-1106.

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Contrasting with conclusions from laboratory experiments that the absorption coefficient k for amplitudes of elastic waves is proportional to 1/T, or, from theoretical considerations, that it should be proportional to 1/T or to 1/T^2, observations of body waves through the mantle of the earth show little if any decrease in absorption with increasing period T. In teleseismic records S rarely shows periods of less than 4 seconds, while in P periods of 1 second are observed to the greatest distances. The value k = 0.06 per 1,000 km., found previously for P, P'P' and P'P'P' through the mantle and the core, is confirmed for P and PP and is found also for S in the mantle.

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Additional Information:Copyright © 1958, by the Seismological Society of America. Manuscript received for publication January 6, 1958.
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Caltech Division of Geological Sciences854
Issue or Number:3
Record Number:CaltechAUTHORS:20140806-124653020
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48098
Deposited By: George Porter
Deposited On:06 Aug 2014 20:54
Last Modified:03 Oct 2019 07:00

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