1. CNRS UMR 6249, Laboratoire Chrono-Environnement; UFR des Sciences et Techniques, Université de Bourgogne-Franche-Comté; Besançon France
2. Senckenberg Research Institute and Natural History Museum; BIK-F, TSP6 Evolution and Climate; Frankfurt am Main Germany
3. Heidelberg University; Institute of Earth Sciences; Heidelberg Germany
4. Helmholtz Centre Potsdam; GFZ German Research Centre for Geosciences; Chemistry and Physics of Earth Materials; Potsdam Germany