Schematic cross-section illustrating the stability of hydrous phases in cold subducting slabs and the shear-wave anisotropy generated from deformed phase D. (IMAGE)

Ehime University

Schematic cross-section illustrating the stability of hydrous phases in cold subducting slabs and the shear-wave anisotropy generated from deformed phase D.

Caption

The calculated seismic anisotropy of deformed phase D is consistent with seismological observations in some cold subduction zones in the mid-mantle, where VSH > VSV. Blue dotted lines indicate horizontal or nearly slab-parallel propagation of shear-waves.

Credit

Wentian Wu, Ehime University

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