1. LUNG M‐V Geological Survey of Mecklenburg‐Vorpommern Goldberger Str. 12 Güstrow D‐18273, Germany
2. Institute of Geography and Geology University of Greifswald F.‐L.‐Jahn‐Str. 17a Greifswald D‐17489, Germany
3. Nordic Laboratory for Luminescence Dating Department of Geosciences Aarhus University Høegh‐Guldbergs Gade 2 Aarhus C DK‐8000, Denmark
4. Center for Nuclear Technologies Technical University of Denmark Risø Campus, Frederiksborgvej 399 Roskilde DK‐4000, Denmark
5. Institute of Geosciences Friedrich Schiller University of Jena Burgweg 11 Jena D‐07749 Germany