Stable oxygen and carbon isotope ratios of Globigerina bulloides in sediment core MD95-2042 of the Iberian Margin, North Atlantic

A principal component analysis performed on 19 species allows the identification of 11 intervals characterized by increased abundances of the subpolar species. The youngest six of these intervals are correlated with the last 6 Heinrich events (HEs).

The five cold events older than stage 4 are dated at 81, 90, 110, 129, and 140 ka, respectively. Paleotemperatures reconstructed using the modern analog technique indicate 4°C decreases during all even-numbered isotopic stages and stage 3. During the HEs, temperature decreases reach ~10°C and seawater delta18O anomalies reach ~1 per mil.