Journal
JOURNAL OF THE GEOLOGICAL SOCIETY
Volume 169, Issue 4, Pages 449-459Publisher
GEOLOGICAL SOC PUBL HOUSE
DOI: 10.1144/0016-76492011-131
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Funding
- Det norske oljeselskap, Eni Norge
- Geological Survey of Norway
- Norwegian Petroleum Directorate
- Statoil
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A new generation of aeromagnetic surveys highlights the Caledonian basement grain and pre-Permian basin architecture of the southwestern Barents Sea. This configuration involved several Caledonian thrust sheets that reactivated and controlled the post-Caledonian rift development of the southwestern Barents Sea during Late Palaeozoic time. Contrary to previous geological models, we consider that the sub-Permian basins and underlying basement grain have a dominantly NNW-SSE orientation in most of the southwestern Barents Sea. Moreover, we do not see magnetic evidence that could support a major NE-SW or NNE-SSW regional axis that has commonly been proposed for the Late Palaeozoic rift system and inherited Caledonian structural grain in the Barents Sea.
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