Extended Data Fig. 4: δ13C and δ18O signatures of the Total Inorganic Carbon sediment fraction.
From: Deglaciation drove seawater infiltration and slowed submarine groundwater discharge
The TIC isotopic signatures are dominated by authigenic carbonate that is depleted in 13C and enriched in 18O and shows a stark contrast with the background core (PC22) that is unaffected by microbial seafloor activity. The error bars indicate the mean percent error calculated from all standards (n = 45).
