1. Department of Geological and Mining Engineering and Sciences; Michigan Technological University; Houghton MI USA
2. Department of Arctic Geology; University Centre in Svalbard; Longyearbyen Svalbard Norway
3. School of Earth and Environment; University of Leeds; Leeds UK
4. School of Geosciences; University of South Florida; Tampa FL USA
5. School of Geography and Geosciences; University of St Andrews; St Andrews UK