1. Department of Geology; Lund University; Lund Sweden
2. Department of Geology; Norwegian University of Science and Technology; Trondheim Norway
3. Centre for GeoGenetics, Natural History Museum of Denmark; University of Copenhagen; Copenhagen Denmark
4. Department of Earth Sciences; University of Gothenburg; Gothenburg Sweden
5. School of Geographical and Earth Sciences; University of Glasgow; Glasgow UK
6. University Centre in Svalbard; Longyearbyen Norway
7. Institute of Earth Sciences; University of Iceland; Reykjavík Iceland