Extended Data Fig. 7: The velocity models similar to that in Extended Data Fig. 6 but with a larger Gaussian smoothing.
From: Lower oceanic crust formed by in situ melt crystallization revealed by seismic layering

A Gaussian smoothing operator with 4 km in the horizontal and 0.4 km in the vertical directions was used for regularising velocity update, and the rest of the parameters are the same as in Extended Data Fig. 6.