1. Geological Institute RWTH‐Aachen University Wüllnerstrasse 2 Aachen 52062 Germany
2. Department of Geosciences University of Oslo Sem Sælands Vei 1 Oslo 0371 Norway
3. Department of Geological Sciences and Geological Engineering Queen's University 36 Union Street Kingston ON K7L 3N6 Canada
4. Department of Civil Engineering Ellis Hall Queen's University Kingston ON K7L 3N6 Canada
5. Shell International Limited Shell Centre London SE1 7NA UK
6. School of Ocean Sciences Bangor University Menai Bridge LL59 5AB UK