Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin
The North Atlantic margins are archetypally passive, yet they have experienced post-rift vertical movements of up to kilometre scale. The Cenozoic history of such movements along the NW European margin, from Ireland to mid-Norway, is examined by integrating published analyses of uplift and subsidenc...
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Elsevier
2005
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Online Access: | http://nora.nerc.ac.uk/id/eprint/17796/ http://www.sciencedirect.com/science/journal/02648172 |
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ftnerc:oai:nora.nerc.ac.uk:17796 2023-05-15T17:36:01+02:00 Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin Praeg, D. Stoker, M.S. Shannon, P.M. Ceramicola, S. Hjelstuen, B. Laberg, J.S. Mathiesen, A. 2005 http://nora.nerc.ac.uk/id/eprint/17796/ http://www.sciencedirect.com/science/journal/02648172 unknown Elsevier Praeg, D.; Stoker, M.S.; Shannon, P.M.; Ceramicola, S.; Hjelstuen, B.; Laberg, J.S.; Mathiesen, A. 2005 Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin. Marine and Petroleum Geology, 22 (9-10). 1007-1030. https://doi.org/10.1016/j.marpetgeo.2005.03.014 <https://doi.org/10.1016/j.marpetgeo.2005.03.014> Publication - Article PeerReviewed 2005 ftnerc https://doi.org/10.1016/j.marpetgeo.2005.03.014 2023-02-04T19:31:21Z The North Atlantic margins are archetypally passive, yet they have experienced post-rift vertical movements of up to kilometre scale. The Cenozoic history of such movements along the NW European margin, from Ireland to mid-Norway, is examined by integrating published analyses of uplift and subsidence with higher resolution tectono-stratigraphic indicators of relative movements (including results from the STRATAGEM project). Three episodes of epeirogenic movement are identified, in the early, mid- and late Cenozoic, distinct from at least one phase of compressive tectonism. Two forms of epeirogenic movement are recognised, referred to as tilting (coeval subsidence and uplift, rotations <1° over distances of 100s of Kilometres) and sagging (strongly differential subsidence, rotations up to 4° over distances <100 km). Each epeirogenic episode involved relatively rapid (<10 Ma) km-scale tectonic movements that drove major changes in patterns of sedimentation to find expression in regional unconformity-bounded stratigraphic units. Early Cenozoic tilting (late Paleocene to early Eocene, c. 60–50 Ma) caused the basinward progradation of shelf-slope wedges from elongate uplifts along the inner continental margin and from offshore highs. Mid-Cenozoic sagging (late Eocene to early Oligocene, c. 35–25 Ma) ended wedge progradation and caused the onset of contourite deposition in deep-water basins. Late Cenozoic tilting (early Pliocene to present, <4±0.5 Ma) again caused the basinward progradation of shelf-slope wedges, from uplifts along the inner margin (including broad dome-like features) and from offshore highs. The early, mid- and late Cenozoic epeirogenic episodes coincided with Atlantic plate reorganisations, but the observed km-scale tectonic movements are too large to be accounted for as flexural deflections due to intra-plate stress variations. Mantle–lithosphere interactions are implied, but the succession of epeirogenic episodes, of differing form, are difficult to reconcile with the various syn-to ... Article in Journal/Newspaper North Atlantic Natural Environment Research Council: NERC Open Research Archive Norway Tilting ENVELOPE(-54.065,-54.065,49.700,49.700) Marine and Petroleum Geology 22 9-10 1007 1030 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The North Atlantic margins are archetypally passive, yet they have experienced post-rift vertical movements of up to kilometre scale. The Cenozoic history of such movements along the NW European margin, from Ireland to mid-Norway, is examined by integrating published analyses of uplift and subsidence with higher resolution tectono-stratigraphic indicators of relative movements (including results from the STRATAGEM project). Three episodes of epeirogenic movement are identified, in the early, mid- and late Cenozoic, distinct from at least one phase of compressive tectonism. Two forms of epeirogenic movement are recognised, referred to as tilting (coeval subsidence and uplift, rotations <1° over distances of 100s of Kilometres) and sagging (strongly differential subsidence, rotations up to 4° over distances <100 km). Each epeirogenic episode involved relatively rapid (<10 Ma) km-scale tectonic movements that drove major changes in patterns of sedimentation to find expression in regional unconformity-bounded stratigraphic units. Early Cenozoic tilting (late Paleocene to early Eocene, c. 60–50 Ma) caused the basinward progradation of shelf-slope wedges from elongate uplifts along the inner continental margin and from offshore highs. Mid-Cenozoic sagging (late Eocene to early Oligocene, c. 35–25 Ma) ended wedge progradation and caused the onset of contourite deposition in deep-water basins. Late Cenozoic tilting (early Pliocene to present, <4±0.5 Ma) again caused the basinward progradation of shelf-slope wedges, from uplifts along the inner margin (including broad dome-like features) and from offshore highs. The early, mid- and late Cenozoic epeirogenic episodes coincided with Atlantic plate reorganisations, but the observed km-scale tectonic movements are too large to be accounted for as flexural deflections due to intra-plate stress variations. Mantle–lithosphere interactions are implied, but the succession of epeirogenic episodes, of differing form, are difficult to reconcile with the various syn-to ... |
format |
Article in Journal/Newspaper |
author |
Praeg, D. Stoker, M.S. Shannon, P.M. Ceramicola, S. Hjelstuen, B. Laberg, J.S. Mathiesen, A. |
spellingShingle |
Praeg, D. Stoker, M.S. Shannon, P.M. Ceramicola, S. Hjelstuen, B. Laberg, J.S. Mathiesen, A. Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
author_facet |
Praeg, D. Stoker, M.S. Shannon, P.M. Ceramicola, S. Hjelstuen, B. Laberg, J.S. Mathiesen, A. |
author_sort |
Praeg, D. |
title |
Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
title_short |
Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
title_full |
Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
title_fullStr |
Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
title_full_unstemmed |
Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin |
title_sort |
episodic cenozoic tectonism and the development of the nw european 'passive' continental margin |
publisher |
Elsevier |
publishDate |
2005 |
url |
http://nora.nerc.ac.uk/id/eprint/17796/ http://www.sciencedirect.com/science/journal/02648172 |
long_lat |
ENVELOPE(-54.065,-54.065,49.700,49.700) |
geographic |
Norway Tilting |
geographic_facet |
Norway Tilting |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Praeg, D.; Stoker, M.S.; Shannon, P.M.; Ceramicola, S.; Hjelstuen, B.; Laberg, J.S.; Mathiesen, A. 2005 Episodic Cenozoic tectonism and the development of the NW European 'passive' continental margin. Marine and Petroleum Geology, 22 (9-10). 1007-1030. https://doi.org/10.1016/j.marpetgeo.2005.03.014 <https://doi.org/10.1016/j.marpetgeo.2005.03.014> |
op_doi |
https://doi.org/10.1016/j.marpetgeo.2005.03.014 |
container_title |
Marine and Petroleum Geology |
container_volume |
22 |
container_issue |
9-10 |
container_start_page |
1007 |
op_container_end_page |
1030 |
_version_ |
1766135351777165312 |