Fig. 1
From: Labrador Sea freshening at 8.5 ka BP caused by Hudson Bay Ice Saddle collapse
North Atlantic Ocean circulation and sediment core locations. The white shaded area shows the extent of the Laurentide Ice Sheet (LIS) at 8.5 ka before present, with the Hudson Bay Ice Saddle connecting the Keewatin and Quebec-Labrador Ice Domes32,33,34. The blue shaded area displays Lake Agassiz-Ojibway that formed along the southern margin of the LIS and drained through subglacial channels in the Hudson Bay seabed (light blue arrow). Dark blue and red arrows represent cold and warm currents of the North Atlantic, respectively. The Labrador Current originates from a mixture of the cold, fresh Baffin Current and the warmer, more saline West Greenland Current, which is composed of Atlantic waters from the Irminger Current and the cold, fresh East Greenland Current. Core locations are marked with black (this study) and white (other studies) circles. Bathymetric basemap made using Ocean Data View60
