Extended Data Figure 2 : Stable-isotope data for foraminifera and bulk carbonate.

From: Very large release of mostly volcanic carbon during the Palaeocene–Eocene Thermal Maximum

Extended Data Figure 2

Foraminifera-based stable-isotope compositions were generated from identical samples after splitting the δ13C/δ18O fraction from the δ11B fraction. For both foraminifera and bulk carbonate, the data are plotted against the depth of the core sample. The same data are plotted against age relative to CIE in Fig. 1.