Figure 3. The age/depth relationship for planktonic foraminifer datums in Hole 999A. Filled circles mark positions of datums using the published ages (Curry, Shackleton, Richter, et al., 1995) and open circles mark the positions using Ceara Rise ages (Chaisson and Pearson, 1997). Sediment accumulation rates (m/m.y.) are calculated using published ages between points indicated by arrows. Numbers (1-19) refer to species listed in Table 2.