Abstract
The fourth season of the five-year mapping programme in the Scoresby Sund region was carried out in July and August. A tent base camp was established at the head of Hurry Inlet and served as operation centre for 3 helicopters. The Norwegian sealer "Brandal", and a small cutter provided transport in the fjords. The expedition members numbered 44, comprising 16 geological two-man parties and supporting personnel. Five parties mapped in the crystalline complex of Liverpool Land and one party the Caledonian supracrustal and igneous rocks on Canning Land. Mapping of the post-Caledanian sediments in Jameson Land and southern Scoresby Land was undertaken by six parties (see Birkelund and Perch-Nielsen, this repart). Two parties mapped the eastern part of the Tertiary basalt area south af Scoresby Sund and one undertook Quaternary investigations in the central and eastern part of the Scoresby Sund region. A geophysical party carried out a terrestrial magnetometer investigation across central Jameson Land and a shipborne investigation in Scoresby Sund and Hall Bredning.
Highlights
2500 km2 were mapped in the Caledonian crystalline complex and about 4500 km2 were mapped and remapped in the post-Caledonian sediments
The second area of metamorphic rocks occurs in the eastern part af central Liverpool Land and was first described Kranck (1935)
Major thrusts are found at several levels in Liverpool Land influencing both metamorphic units and plutonic rocks
Summary
Five parties mapped in the crystalline complex of Liverpool Land and one party the Caledonian supracrustal and igneous rocks on Canning Land. Mapping of the post-Caledanian sediments in Jameson Land and southern Scoresby Land was undertaken bysix parties (see Birkelund and Perch-Nielsen, this repart). Two parties l1lapped the eastern part of the Tertiary basalt area sauth af Scaresby Sund and one undertook Quaternary investigations in the central and eastern part of the Scoresby Sund region. Of Exeter) who distinguished a sequence of older gneisses and ayounger post-kinematic granite in the south-western part of the area (Henriksen & Higgins, 1970). The crystalline complex comprises three main areas of metamorphic rocks, whose relationships to each other are uncertain, and a suite of pre- to post-kinematic plutonic rocks
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