Fig. 1From: Subducted oceanic crust as the origin of seismically slow lower-mantle structuresDepth slices of S40RTS (Ritsema, 2011) showing variations in shear-wave velocity, δ lnVs, with respect to the radial average. Both positive and negative velocity anomalies are highest toward the CMB. The color intensity is proportional to the velocity amplitude up to a maximum value of 2%Back to article page