Abstract
Small outliers of sedimentary rocks overlying the Tertiary basalts of the northern Blosseville Kyst are preserved in down-faulted areas at Kap Dalton and Savoia Halvø (Kap Brewster) (Watt et al., this report). They are of particular interest in that their age establishes a younger limit for the period of effusive vulcanity on this sector of the East Greenland continental margin.
Highlights
The Kap Dalton sediments are preserved in a down-faulted block or small graben to the south-east of a major coast-parallel normal fault which has il throw ofat least 1500 m
Outside the graben a thick, sub-horizontal succession of dominantly subaerial basalt flows is cut by the coastal dyke swarm
The basalts ofth~ outer headland are intruded by the dyke swarm, while those between .the two faults are dyke-free and are overlain by the Kap Dalton sediments
Summary
The Kap Dalton sediments are preserved in a down-faulted block or small graben to the south-east of a major coast-parallel normal fault which has il throw ofat least 1500 m (fig. 40). The basalts withinthe graben dip gently north-west and comprise two successions separated by another fault which crosses the Kap Dalton headland. The basalts ofth~ outer headland are intruded by the dyke swarm, while those between .the two faults are dyke-free and are overlain by the Kap Dalton sediments. The latter basalt succession occupies a high stratigraphic position in the lava pile, above the levelof. The post-basaltic sediments at Kap Dalton are poorly exposed, but are seen to comprise two upward-fining sequences of distinct lithologic'al type; these will, for the present, be terrned informally the lower and upper sequences. Samples for 'palynological investigation were taken from all named units except the Yellow Sandstone
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