Sediment depth is given in mbsf. After ion microprobe measurements, the appearance and location of analysis pits were imaged by SEM. Oxygen isotope data from pits overlapping epoxy resin, cracks, cavities, inclusions, or areas of high porosities (ion yield less than 90% of that obtained in the nonporous standard) are considered as possibly compromised, and data from these measurements were not used for climate reconstruction. However, these measurements are listed in the table.