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Book Chapter

Strains in a “Constant Q” Solid

By
J. E. White
J. E. White
Research Associate, Denver Research Center, Marathon Oil Company, Littleton, Colorado
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Published:
January 01, 2000

Abstract

The experimental evidence is very convincing that seismic waves experience an exponential attenuation in which the coefficient varies as the first power of frequency. Stated another way, earth materials are characterized by a loss parameter Q which is independent of frequency. Several nonlinear stress-strain relations have been proposed in the literature, each of which would agree with the above experiments. The stress-strain relation to be discussed here can be related to static friction and sliding friction at areas of contact between grains, for a loose granular material. In this paper, the relation should be taken as a pure assumption, whose worth rests on the resulting properties of the medium under vibration and stress.

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Contents

Society of Exploration Geophysicists Geophysics Reprint Series

Seismic Wave Propagation: Collected Works of J. E. White

J. E. White
J. E. White
Professor Emeritus, Colorado School of Mines
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Society of Exploration Geophysicists
Volume
21
ISBN electronic:
9781560802471
Publication date:
January 01, 2000

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