The geological origin of long wavelength lateral heterogeneity at depths of 300 - 400 km

Details The geological origin of long wavelength lateral heterogeneity at depths of 300 - 400 km The geological origin of long wavelength lateral heterogeneity at depths of 300 - 400 km

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21..907h&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 10, p. 907-910

Physics

3

Cratons, Earth Mantle, Geomorphology, Mid-Ocean Ridges, Planetary Geology, Seismic Waves, Seismology, Structural Properties (Geology), Three Dimensional Models, Heterogeneity, Mathematical Models, Propagation Velocity, Wave Propagation

Scientific paper

On the basis of two three-dimensional (3-D) models of S-wave velocity, PUM0 (Hara et al., 1993) and SH425.2 (Su and Dziewonski, 1991), we show that the deep roots of cratons and mid-ocean ridges provide a satisfactory explanation of the pattern and amplitude of the Earth's long wavelength lateral heterogeneity in the depth range from 300 to 400 km.

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