Figure F2. Map showing modern circulation in the North Atlantic, locations of Expedition 303 and 306 sites (blue and red circles, respectively) and Leg 162 sites (green circles) (discussed in the text), and the distribution of rock types that are potential source areas of detrital carbonate. Large blue arrows = pathways of detrital matter supplied during Heinrich events, gray field = Ruddiman's ice-rafted debris (IRD) belt (from Bond and Lotti, 1995).