Fig. 1: Ocean circulation, bathymetry, and boreholes in the North Atlantic Ocean and Nordic Seas.
From: Onset of strong Iceland-Scotland overflow water 3.6 million years ago
Coloured shaded circles = Expeditions 395C and 395 sites; black dots = Ocean Drilling Program sites. a Map: Grey shading = areas < 500 m below sea level; pink/blue arrows = near-surface / deep-water overflow paths, respectively (ref. 57); brown polygons = selected contourite drifts (ref. 12); DS = Denmark Strait; DSOW= Denmark Strait Overflow Water; ISOW = Iceland–Scotland Overflow Water (dark blue arrows); ISR = Iceland–Scotland Ridge; NAC = North Atlantic Current; NADW = North Atlantic Deep Water. b Plate spreading flowline transect intersecting 395/395C sites, based on seismic reflection profile (ref. 41); grey shading = sediment.
