Gutzon Larsen, Jørgen. “Transition from Low Potassium Olivine Tholeiites to Alkali Basalts on Ubekendt Ejland. : The Tertiary Volcanic Province of West Greenland”. Meddelelser om Grønland 200, no. 1 (January 1, 1977): 43 pp. Accessed February 28, 2026. https://tidsskrift.dk/meddrgroenland/article/view/147459.