1. University of Potsdam, Institute of Geosciences , Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm, Germany
2. University of Cagliari, Department of Civil, Environmental Engineering and Architecture , 09123 Cagliari, Italy
3. Geological Survey of Denmark and Greenland (GEUS), Department of Groundwater and Quaternary Geology Mapping , 8000 Aarhus, Denmark
4. State Office for Mining, Geology and Natural Resources Brandenburg , Inselstr. 26, 03046 Cottbus, Germany
5. Humboldt-Universtität zu Berlin, Thaer-Institute of Agricultural and Horticultural Sciences , Albrecht-Thaer-Weg 2, 14195 Berlin, Germany