Mg/Ca and Sr/Ca ratios on Globigerinoides ruber (white) in sediment core MD99-2203, Cape Hatteras

Depth in sediment is reconstructed: Three spaces with no sediment were created during coring between the depths:235-240 cm, 269-386 cm and 449-451 cm. Two radiocarbon measurements were performed on both sides of the main 'hole', i.e. at 268 cm and 387 cm. The difference between the 2 dates is 140 years (within 14C uncertainty), which confirms that the 'holes' were created during the coring (no sediment missing). Therefore a reconstructed Depth was created, where the sediment on each side of the 'holes' are joined. G. ruber specimens taken from the size fraction 250-315 µm.