1. Universität Potsdam, Institut für Geowissenschaften, Potsdam, Germany. (corresponding author)
2. Geological Survey of Denmark and Greenland, GEUS, Copenhagen, Denmark.
3. Universität Potsdam, Institut für Geowissenschaften, Potsdam, Germany.
4. NORCE Norwegian Research Center AS, Energy Bergen, Bergen, Norway.
5. Geological Survey of Norway, Torgaarden, Trondheim, Norway and NTNU Department of Geoscience and Petroleum, Trondheim, Norway.