UPTON, B. The geology of Tugtutôq and neighbouring islands, South Greenland. Part III. Olivine gabbros, syeno-gabbros and anorthosites. Part IV. The nepheline syenites of the Hviddal composite dyke. Bulletin Grønlands Geologiske Undersøgelse, Copenhagen, Denmark, v. 48, p. 1–80, 1964. DOI: 10.34194/bullggu.v48.6582. Disponível em: https://geusjournals.org/index.php/bullggu/article/view/6582. Acesso em: 3 jul. 2024.