1. Department of Petrology and Geochemistry, Eötvös Loránd University, H-1117, Pázmány Péter sétány 1/C, Budapest, Hungary
2. Geoscience Center, Department of Sedimentology and Environmental Geology, University of Göttingen, D-37077 Goldschmidtstrasse 3, Göttingen, Germany
3. Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Hungarian Academy of Sciences, Bem tér 18/C, H-4026, Debrecen, Hungary
4. Department of Geology, Babeş-Bolyai University, M. Kogalniceanu street 1, RO-400084 Cluj-Napoca, Romania