Supplementary material for: The feasibility of slab melting: implications for arc magmatism and geochemical cycling in subduction zones

The document contains extended methods for the thermodynamic and geodynamic modeling, Figures S1–S4, and Tables S1 and S2. Table S1 gives the whole-rock compositions used in the closed- and open-system calculations, including the residual compositions after each melt migration event; Table S2 gives the compositions of the melts extracted at each melt migration event.