Traveltime dispersion in an isotropic elastic mantle: strong lower-mantle signal in differential-frequency residuals
Geophysical Journal International(2015)
摘要
We study wavefield effects of direct P- and S-waves in elastic and isotropic 3-D seismic structures derived from the temperature field of a high-resolution mantle circulation model. More specifically, we quantify the dispersion of traveltime residuals caused by diffraction in structures with dynamically constrained length scales and magnitudes of the lateral variations in seismic velocities and de...
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关键词
Mantle processes,Body waves,Computational seismology,Wave scattering and diffraction,Wave propagation,Dynamics of lithosphere and mantle
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