AMS 14C-age measurements on Globigerinoides ruber white (250-500 µm size fraction) at the mass accelerater of the Leibniz Labor, Kiel University. Corrections for reservior age have not been made, as it was higher than 400 years in this region. Surface age of the box core sample is obviously falsified by the numerous mussels living in the crater. Calendar ages were obtained direct from original tree ring calibrations for the Holocene after Stuiver et al.1986.