Rasmussen, Jóannes, and Arne Noe-Nygaard. “Geology of the Faeroe Islands (Pre-Quaternary)”. Danmarks Geologiske Undersøgelse I. Række 25 (December 31, 1970): 1–142. Accessed May 17, 2024. https://geusjournals.org/index.php/raekke1/article/view/6780.