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Science 25 June 1971:
Vol. 172. no. 3990, pp. 1336 - 1338
DOI: 10.1126/science.172.3990.1336
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Articles

Overtones of Free Oscillations and the Structure of the Earth's Interior

Adam M. Dziewonski 1

1 Geosciences Division, University of Texas at Dallas, Dallas 75230

Identification of 82 percent of all possible spheroidal overtones with greater than 300 seconds increases the resolving power of the set of gross searth data. Results of inversion indicate a change of composition in the deepest 500 kilometers of the mantle. The assumption that the inner core is rigid is required to satisfy simultaneously the data on free oscillations and travel times.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Residual dispersion measurement--a new method of surface-wave analysis.
A. DZIEWONSKI, J. MILLS, and S. BLOCH (1972)
Bulletin of the Seismological Society of America 62, 129-139
   Abstract »    PDF »
The amplitudes of teleseismic P waves.
O. W. NUTTLI (1972)
Bulletin of the Seismological Society of America 62, 343-356
   Abstract »    PDF »


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