1Palynology and Quaternary Sciences, University of Götingen, Wilhelm-Weber-Strasse 2, D-37073, Göttingen, Germany
2Geosciences University of Bremen, P.O. Box 330440, D-28334 Bremen, Germany
3Palynology and Quaternary Sciences, University of Göttingen, Wilhelm-Weber-Strasse 2, D-37073, Göttingen, Germany