1. Department of Earth Sciences ETH Zurich Zurich Switzerland
2. Department of Geosciences Colorado State University Fort Collins USA
3. Now at Max Planck Institute for Meteorology Hamburg Germany
4. Laboratory of Ion Beam Physics, Department of Physics ETH Zurich Zurich Switzerland
5. Department of Soil and Water Sciences, The Robert H. Smith Faculty of Agriculture, Food and Environment The Hebrew University of Jerusalem Rehovot Israel
6. The Advanced School for Environmental Studies The Hebrew University of Jerusalem Jerusalem Israel
7. National History Museum of Crete University of Heraklion Heraklion Greece