Supplement to: Cai, Yue; LaGatta, Alexandra; Goldstein, Steven L; Langmuir, Charles H; Gómez-Tuena, Arturo; Martín-del Pozzo, Ana Lillian; Carrasco-Núñez, Gerardo (2014): Hafnium isotope evidence for slab melt contributions in the Central Mexican Volcanic Belt and implications for slab melting in hot and cold slab arcs. Chemical Geology, 377, 45-55, https://doi.org/10.1016/j.chemgeo.2014.04.002