Tertiary volcanic geology of the Mellemfjord area, south-west Disko

This paper reports on the results of three weeks of investigations in the Mellemfjord-Eqaluit area of south-west Disko, carried out in the summer of 1974. Very little has been published on the geology in this area: Steenstrup (1882, 1883, 1900) described the area briefly and concentrated on native iron bearing lavas, from which samples were petrographically decribed by Lorenzen (1882), Nicolau (1900), and Pauly (1969), who also communicated results from an unpublished field report by W. Fisch. The purpose of the present investigation was threefold, namely the study ofthe youngest exposed voicanic rocks on Disko, the study of native iron bearing voicanic rocks and the study of the structure of the coast area which is of interest for the interpretation of the off-shore geology.