Axi-symmetric earth models and inner-core anisotropy

Details Axi-symmetric earth models and inner-core anisotropy Axi-symmetric earth models and inner-core anisotropy

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988natur.333..228s&link_type=abstract

Nature (ISSN 0028-0836), vol. 333, May 19, 1988, p. 228-232.

Computer Science

68

Anisotropy, Earth Core, Earth Planetary Structure, P Waves, Seismic Waves, Axisymmetric Bodies, Depth Measurement, Earth Mantle, Heterogeneity, Spherical Harmonics

Scientific paper

Seismic waves passing through the middle of the Earth travel slightly
faster in a N-S direction than in an E-W direction. A comparison of
travel times for different P-wave phases shows that most of this anomaly
is within the inner core, and that uniform anisotropy of the inner core
is the most likely cause.

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