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Science 3 June 1977:
Vol. 196. no. 4294, pp. 1104 - 1106
DOI: 10.1126/science.196.4294.1104
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Articles

The Earth as a Seismic Absorption Band

DON L. ANDERSON 1, HIROO KANAMORI 1, ROBERT S. HART 1, and HSI-PING LIU 1

1 Seismological Laboratory, California Institute of Technology, Pasadena 91125

Attenuation of seismic waves indicates that the earth is not perfectly elastic. Dispersion accompanying absorption gives frequency-dependent "elastic" moduli, a fact that must be taken into account when inverting seismic data. Normal mode data are reinverted after correcting for absorption. The correction removes the discrepancy between body wave and free oscillation interpretations of earth structure.

Submitted on August 16, 1976
Revised on December 7, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
A Decade of Progress in Earth's Internal Properties and Processes.
O. L. Anderson and O. L. Anderson (1981)
Science 213, 76-82
   Abstract »    PDF »
Regional variation of QScS.
S. A. SIPKIN and T. H. JORDAN (1980)
Bulletin of the Seismological Society of America 70, 1071-1102
   Abstract »    PDF »
Frequency dependence of QScS.
S. A. SIPKIN and T. H. JORDAN (1979)
Bulletin of the Seismological Society of America 69, 1055-1079
   Abstract »    PDF »
Simultaneous inversion of surface-wave phase velocity and attenuation: Rayleigh and Love waves over continental and oceanic paths.
W. B. LEE and S. C. SOLOMON (1979)
Bulletin of the Seismological Society of America 69, 65-95
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)