Caledonian and pre-Caledonian geology of Dronning Louise Land, North-East Greenland

Abstract

The western border of the East Greenland Caledonides is exposed in Dronning Louise Land, where it is marked by a N–S trending thrust Imbricate Zone. The autochthonous crystalline basement to the west of the Imbricate Zone is dominated by orthogneisses, and unconformably overlain by two metasedimentary sequences (Zebra Series and Trekant Series). These metasedimentary units can be recognised in the Caledonian thrust slices of the Imbricate Zone and also as folded inliers in the gneiss complexes to the east, and witness to a progressive increase in Caledonian deformation and metamorphism.