Authigenic carbonates produce distinct Zn‑C isotopic signatures: Implications for paleoceanographic proxies

Text S1: Zinc isotopic analyses of carbonate fraction of bulk sediments Figure S1: Bulk carbonate δ66Zn (A) and δ13C (B) as functions of the relative proportion of porewater-derived versus bottom water-derived authigenic carbonate (fau-porewater), calculated for total authigenic fractions (fau) of 0.1 to 0.9. Table S1: Zinc-carbon isotopes and selected major and trace element ratios of the authigenic carbonate.