A whole mantle SH velocity model is obtained by using a unique data set and techniques. Body and surface waveforms including major and multi-orbit phases are used as a data set and are inverted by using 3-D Born kernels. The resultant model, SH18CE, reveals the different natures of the two major upwelling systems: the strong low velocity anomalies beneath Africa extend for more than 1000 km from the core-mantle boundary (CMB), whereas those beneath the Pacific are restricted to 300-400 km from the CMB. The results also show the variable natures of stagnant slabs on the 670 discontinuity around Japan: the depths of the strongest high velocity anomalies within the stagnant slabs are different region by region, which is consistent with the detailed delay time tomography model in this area. © 2007 The Authors Journal compilation © 2007 RAS.
CITATION STYLE
Takeuchi, N. (2007). Whole mantle SH velocity model constrained by waveform inversion based on three-dimensional Born kernels. Geophysical Journal International, 169(3), 1153–1163. https://doi.org/10.1111/j.1365-246X.2007.03405.x
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