Preliminary account of the geology of south-east Renland, Scoresby Sund, East Greenland

Abstract

South-east Renland occupies an internal position in the Caledonian orogenic belt of East Greenland. The area comprises migmatised paragneisses ofCaledonian supracrustal origin intruded by concordant sheets of garnetiferous augen granite in the west. The gneisses and granites are folded in large-scale, tight to isoc1inal folds. Intermediate igneous rocks with charnockitic affinity were intruded after the folding. The principal intrusion is an extensive, concordant sheet delimiting an area of gneisses in the east that have undergone further migmatisation and granite intrusion. Prominent among the many fractures are normal faults with downthrow to the east. No indications of economic mineralisation were observed.