Archaean and Palaeoproterozoic orogenic processes: Danish Lithosphere Centre studies of the Nagssugtoqidian orogen, West Greenland

Abstract

The Danish Lithosphere Centre (DLC) was established in 1994 and one of its principal objectives in the first five-year funding cycle is the study of Precambrian orogenic processes. This work initially focused on the thermal and tectonic evolution of the Nagssugtoqidian orogen of West Greenland. During the first two field seasons (1994 and 1995) most efforts were concentrated in the southern and central portions of the orogen. The 1997 field season was the third and final in the project in the Nagssugtoqidian orogen and emphasis was placed on the central and northern parts of the orogen in order to complete the lithostructural study of the inner Nordre Strømfjord area and to investigate the northern margin of the orogen (NNO in Fig. 1). This report is partly a review of selected research results obtained since publication of the last Review of Greenland activities (van Gool et al. 1996), and also partly a summary of field activities in Greenland during the summer of 1997.