1. Renard Centre of Marine Geology Ghent University Krijgslaan 281 (S8 WE13) Ghent Belgium
2. Institute of Geology University of Innsbruck Innrain 52 Innsbruck Austria
3. Flanders Marine Institute (VLIZ) Wandelaarkaai 7 Ostend Belgium
4. Department of Earth and Atmospheric Science University of Alberta Edmonton AB T6G 2E3 Canada
5. U.S. Geological Survey 4210 University Drive Anchorage AK USA