(Table 1) Age determination of sediment core GeoB3104-1

Measurement of monospecific carbonate samples (Globigerina sacculifer in the fraction 250-500 µm). Ages were corrected for a reservoir effect of 400 yr (Bard, 1988, doi:10.1029/PA003i006p00635) and calibrated using the method of Bard et al. (1993). For the deglacial, we conservatively estimate the calendar year chronology to be good to within +/-500 yr. Before about 25,000 cal yr B.P. there are only a limited number of calibration points, so the assumed correction is uncertain (probably at least +/-1500 yr).