“Late Archaean Metamorphic Rb-Sr Isochron Ages from Basic and Ultrabasic Rocks in the Bjørnesund – Ravns Storø Region, Southern West Greenland”. Rapport Grønlands Geologiske Undersøgelse 90 (December 31, 1978): 135–141. Accessed October 30, 2025. https://geusjournals.org/index.php/rapggu/article/view/7612.