Fig. 6

Si isotope core records from deep-sea sponge spicules and other palaeo-data. a Greenland NGRIP ice core oxygen isotope record85, b benthic δ18O and δ13C record from Cibicidoides in the RAPiD-10-1P core (SE Iceland)62, and c Si isotope record from sponge spicules for the RAPiD-10-1P core (blue) and the lower resolution KNR140 core for comparison (white; Carolina Slope8). The shaded regions indicate approximate timings of Meltwater Pulse event 1a (blue) and Meltwater Pulse event 1b (grey)