1. Department of Earth ScienceUniversity of Bergen Postbox 7803 NO‐5020 Bergen Norway
2. Research Centre for Arctic Petroleum Exploration, ARCExDepartment of GeosciencesThe Arctic University of Norway Postbox 6050 Langnes NO‐9037 Tromsø Norway
3. The University Centre in SvalbardArctic GeologySvalbard Science Centre Postbox 156 N‐9171 Longyearbyen Norway