Extended Data Figure 4: Age models for MD99-2227 and ODP Site 646.
From: South Greenland ice-sheet collapse during Marine Isotope Stage 11
a, Age–depth model for MD99-2227. Circles mark tie points based on 14C dates18, δ18O (ref. 35) and RPI. b, MD99-2227 RPI and the PISO-1500 RPI stack34, plotted on their individual age models. Crosses mark RPI tie points. c, MD99-2227 and ODP Site 646 magnetic susceptibilities, plotted on the MD99-2227 age model. For comparison purposes, the ODP Site 646 age–depth model was fitted to MD99-2227 using the magnetic susceptibility tie points indicated by crosses.
