Figure 3. Age-depth plot of Hole 1006A based on the position of selected planktonic foraminiferal events (black squares). Open circles = position of planktonic foraminiferal events that have not been well calibrated yet and are, therefore, not used in the age-depth plot; open squares = uncertainty in the depth of the planktonic foraminiferal events; f through l = seismic sequences; F through L = position of seismic sequence boundaries after conversion into depth.