Figure F11. Stable isotope records of bulk carbonate across the Cretaceous/Paleogene (K/Pg) boundary. The delta18O record shows pronounced cooling above the K/Pg boundary, whereas the delta13C record shows abrupt decline at the K/Pg boundary, which progressively changes to gradual decline. VPDB = Vienna Peedee belemnite.

Figure F11. Stable isotope records of bulk carbonate across the Cretaceous/Paleogene (K/Pg) boundary. The

¹⁸O record shows pronounced cooling above the K/Pg boundary, whereas the

¹³C record shows abrupt decline at the K/Pg boundary, which progressively changes to gradual decline. VPDB = Vienna Peedee belemnite.