Rb/Sr whole rock isochron age determinations on metamorphosed acid volcanic rocks and granitic gneisses from the Ketilidian mobile belt, South-East Greenland. rapggu [Internet]. 1974 Dec. 31 [cited 2025 Dec. 6];66:12-20. Available from: https://geusjournals.org/index.php/rapggu/article/view/7398