Abstract
The 1976 season's field work in the Ilimaussaq region was concemed with the lujavrites of the south-eastem part ofthe Ilimaussaq alkaline intrusion, the uranium-rich rocks along the intrusion's northem contact, the environmental geochemistry and ecology of the Narssaq region, and the Narssaq intrusion situated to the west ofthe Ilimaussaq intrusion. Each of these projects is briefly discussed below.
Highlights
The 1976 season's field work in the Ilimaussaq region was concemed with the lujavrites of the south-eastem part of the Ilimaussaq alkaline intrusion, the uranium-rich rocks along the intrusion's northem contact, the environmental geochemistry and ecology of the Narssaq region, and the Narssaq intrusion situated to the west ofthe Ilimaussaq intrusion
In the summer of 1974 small outcrops of strongly radioactive rocks were found at an altitude of about 800 m in the steep, scree-covered north wall ofthe Narssaq Elv valley
Weidick (1972) noted that the low altitudes of marine limits generally observed in the region may indicate slight isostatic rebound, and a light burden of ice over the area in the Upper Wisconsin - Weichselian
Summary
The 1976 season's field work in the Ilimaussaq region was concemed with the lujavrites of the south-eastem part of the Ilimaussaq alkaline intrusion, the uranium-rich rocks along the intrusion's northem contact, the environmental geochemistry and ecology of the Narssaq region, and the Narssaq intrusion situated to the west ofthe Ilimaussaq intrusion. In the eastem parts ofthe area the rocks are more or less heavily metasomatically altered, generally displaying smaU-scale folding.
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