Dykes and deformation in the Ikertoq zone of the Nagssugtoqidian at Søndre Strømfjord Airport
The geology of the southern part of the Nagssugtoqidian of W Greenland is examined in a traverse of the amphibolite fades Ikertoq zone at Søndre Strømfjord Airport. The continuous fanning of the foliation, shallow dips near the Archaean- Nagssugtoqidian boundary and steeper dips further north, is no...
| Main Authors: | , |
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| Format: | Text |
| Language: | English |
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1984
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.492.28 http://2dgf.dk/xpdf/bull32-03-04-101-106.pdf |
| Summary: | The geology of the southern part of the Nagssugtoqidian of W Greenland is examined in a traverse of the amphibolite fades Ikertoq zone at Søndre Strømfjord Airport. The continuous fanning of the foliation, shallow dips near the Archaean- Nagssugtoqidian boundary and steeper dips further north, is not indicative of a two-stage history for the zone. The structures of the deformed Kangåmiut dykes and the gneisses in which they occur have been studied in some detail. It is concluded that deformation synchronous with and postdating the intrusion of the dykes has been intense enough to rejuvenate the fabric of the gneisses to a post-intrusive age. /. van der Molen, Instituut voor aardwetenschappen, Rijksuniversiteit Utrecht, Budapestlaan 4, 3508 TA |
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