Data for: Ca-Ba isotopes reveal distinct mantle metasomatism in the mantle source of ultrapotassic magma

The supplementary materials conclude: 1. The assimilation and crystal fractionation (AFC) modeling 2. Figure S1 The modeling results of the effects of limestone assimilation and fractional crystallization of clinopyroxene. 3. Figure S2 Plot of CaO/Al2O3 vs. MgO contents. 4. Figure S3 Plot of δ44/40Ca vs. Eu/Eu*. 5. Figure S4 The correlation between δ44/40Ca and (Tb/Yb)N. 6. Table S1 Parameters used for Monte Carlo modeling of the Ca-Zn-Sr-Nd isotopic compositions of recycled carbonate-bearing silicate sediments and the mixing modeling between DMM, Italian basement, and carbonate.