Fig. 3: Vertical cross-sections of the shear-wave velocity model.

a–d Velocity anomalies along different profiles. The black line in each panel denotes the Moho discontinuity33. See Fig. 2d for the profile locations. The surface topography is shown atop each cross-section. Other symbols are the same as in Fig. 1. The black arrows depict vertical magmatic pathways based on our tomographic images. High-V denotes a high-velocity anomaly.