Supplementary Tables S1-S8.xlsx

Analytical and calculated data are presented in Tables S1 to S8.

Table S1. Composition of the synthesized dacitic glass

Table S2. Composition of quenched glasses (wt%) analyzed by EMPA

Table S3. Composition of quenched glasses on an anhydrous basis

Table S4. Composition (wt%) of magnetite analyzed by EPMA

Table S5. Sulfide composition (wt%) by EPMA and Au concentration (ppm) by LA-ICP-MS

Table S6. Composition of anhydrite analyzed by EPMA (wt%)

Table S7. Compositions of silicate minerals and spinel analyzed by EMPA (wt%)

Table S8. H₂O activity in silicate melt and fO₂ estimation