Abstract
The field work in the Wandel Sea Basin in 1980 (fig. 17) concluded the geological study initiated in 1976 (Håkansson & Heinberg, 1977; Håkansson, 1979). During the field seasons large collections of fossils and sediments were made throughout the Early Carboniferous to Paleocene sequence (fig. 18). Investigation of this material is at a preliminary stage, and detailed biostratigraphic correlations and lateral facies relations have yet to be established for most intervals. The present report summarises the observations made in 1980 and gives preliminary results.
Highlights
The Wandel Sea Basin sediments rest on a great variety of rock types
The age and lateral continuation of the suite are not known, but judged by external characters alone the biotite gneiss could well be comparable to the biotite gneisses on Holm Land
Fusulinids of Stephanian age have, so far, not been recognised on Holm Land and Amdrup Land, but more than 100 m of undated sediments are present between the levelof the uppermost sample containing Moscovian fusulinids, and the lowermost sample, with species of Pseudoswagerina, Pseudofusulina and Swagerina (Dunbar et al, 1962)
Summary
The field work in the Wandel Sea Basin in 1980 (fig. 17) concluded the geological study initiated in 1976 (Håkansson & Heinberg, 1977; Håkansson, 1979). During the field seasons large collections of fossils and sediments were made throughout the Early Carboniferous to Paleocene sequence Wandel Sea Basin sediments are up to 7 km thick in total They exceed the comparable Svalbard succession (Worsley & Mørk, 1980). The Wandel Sea Basin development parallels to a great extent that in Svalbard, during the Carboniferous to Triassic periods (Håkansson et al, 1981), but there are pronounced differences between these two regions around the Cretaceous-Tertiary boundary In contrast to the situation in Svalbard and most of the North Atlantic region there is evidence in North Greenland of a significant orogenic pulse close to the Cretaceous-Tertiary boundary. In the Wandel Sea Basin, considerable thicknesses of Late Cretaceous marine and non-marine sediments are preserved
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