Fig. 6: The effects of melt–rock reaction on the Lu–Hf and Sm–Nd elemental and isotopic systematics.
From: Melting of old refractory mantle during subduction initiation of the western Pacific plate

A, C εNd vs. Sm/Nd. B, D εHf vs. Lu/Hf. A and B illustrate the interaction between Site 291 MORB and the 160 Ma refractory mantle, while C and D depict the interaction with the 1000 Ma refractory mantle. The numbers represent the residual melt fractions. The data sources are identical to those used in Fig. 3.