Marker M, Knudsen C. Middle Proterozoic ultramafic lamprophyre dykes in the Archaean of the Atâ area, central West Greenland. rapggu [Internet]. 1989 Dec. 31 [cited 2024 Nov. 27];145:23-8. Available from: https://geusjournals.org/index.php/rapggu/article/view/8067