Data associated to GCA submission - Rojas-Kolomiets et al. 2026

Table S1. Analyzed Mo isotope systematics and sulfur concentrations in Aleutian sediments Table S2. Analyzed Mo isotope systematics in Aleutian arc lavas Table S3. Parameters used in Mo flux calculations Table S4. Calculated mean weighted Mo isotope systematics for Aleutian sediment cores Table S5. Along-arc sediment-derived Mo flux and Mo isotopes (no accretion) Table S6. Along-arc sediment-derived Mo flux and Mo isotopes (15% accretion) Table S7. Compilation of published work of Mo isotope systematics in subducting sediments analyzed to date (see respective references in column E) Table S8. Mixing models in Mo vs. radiogenic isotopes space Table S9. Three-component mixing models in Mo isotopes vs. Mo/Ce space Table S10. Along-arc estimates of slab depth using the Hayes et al. (2018) Slab 2.0 and Syracuse & Abers (2006) models