Peter Voss¹, Gerth Nielsen², Adam Hansen³, Per Ole Frederiksen⁴, Pâviârak Jakobsen⁵, Finn Danielsen⁶, Mathilde Sørensen⁷, Zeinab Jeddi⁷, Trine Dahl-Jensen⁸ and Tine B Larsen¹, (1)Geological Survey of Denmark and Greenland, København K, Denmark, (2)Akunnaaq, Akunnaaq, Greenland, (3)Aasiaat, Aasiaat, Greenland, (4)Attu, Attu, Greenland, (5)Qeqertalik, Aasiaat, Greenland, (6)NORDECO, Copenhagen, Denmark, (7)University of Bergen, Bergen, Norway, (8)GEUS, Copenhagen, Denmark