Figure F32. Summary of age constraints from microfossils and magnetostratigraphy from Sites U1322 and U1324. Black dashed line shows best-estimate age curve from cores that is additionally projected to the base of the Blue Unit. The Blue Unit was not penetrated during Expedition 308, but its age is estimated from industry penetration in the area (Winker and Booth, 2000). Sediment accumulation rates are similar at both sites from present to about 24 ka, then diverge below. The turbidite deposition at the base of Site U1324 accounts for a much higher rate of sedimentation than that observed over a similar time interval at Site U1322. MIS = marine isotope stage, LAD = last-appearance datum.
Next Section | Table of Contents