The influence of structural inheritance and multiphase extension on rift development, the northern North Sea
The northern North Sea rift evolved through multiple rift phases within a highly heterogeneous crystalline basement. The geometry and evolution of syn‐rift depocenters during this multiphase evolution and the mechanisms and extent to which they were influenced by preexisting structural heterogeneiti...
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/75615 2023-05-15T17:35:00+02:00 The influence of structural inheritance and multiphase extension on rift development, the northern North Sea Phillips, T Fazlikhani, H Gawthorpe, R Fossen, H Jackson, CA-L Bell, R Faleide, JI Rotevatn, A Research Council of Norway 2019-10-25 http://hdl.handle.net/10044/1/75615 https://doi.org/10.31223/osf.io/ztqck unknown American Geophysical Union Tectonics 0278-7407 http://hdl.handle.net/10044/1/75615 doi:10.31223/osf.io/ztqck 125000/807097 ©2019. The Authors. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Geochemistry & Geophysics 0403 Geology 0404 Geophysics Journal Article 2019 ftimperialcol https://doi.org/10.31223/osf.io/ztqck 2019-12-19T23:38:12Z The northern North Sea rift evolved through multiple rift phases within a highly heterogeneous crystalline basement. The geometry and evolution of syn‐rift depocenters during this multiphase evolution and the mechanisms and extent to which they were influenced by preexisting structural heterogeneities remain elusive, particularly at the regional scale. Using an extensive database of borehole‐constrained 2D seismic reflection data, we examine how the physiography of the northern North Sea rift evolved throughout late Permian‐Early Triassic (RP1) and Late Jurassic‐Early Cretaceous (RP2) rift phases, and assess the influence of basement structures related to the Caledonian orogeny and subsequent Devonian extension. During RP1, the location of major depocenters, the Stord and East Shetland basins, was controlled by favorably oriented Devonian shear zones. RP2 shows a diminished influence from structural heterogeneities, activity localizes along the Viking‐Sogn graben system and the East Shetland Basin, with negligible activity in the Stord Basin and Horda Platform. The Utsira High and the Devonian Lomre Shear Zone form the eastern barrier to rift activity during RP2. Toward the end of RP2, rift activity migrated northward as extension related to opening of the proto‐North Atlantic becomes the dominant regional stress as rift activity in the northern North Sea decreases. Through documenting the evolving syn‐rift depocenters of the northern North Sea rift, we show how structural heterogeneities and prior rift phases influence regional rift physiography and kinematics, controlling the segmentation of depocenters, as well as the locations, styles, and magnitude of fault activity and reactivation during subsequent events. Article in Journal/Newspaper North Atlantic Imperial College London: Spiral Sogn ENVELOPE(-21.133,-21.133,63.994,63.994) Utsira ENVELOPE(21.477,21.477,77.149,77.149) |
institution |
Open Polar |
collection |
Imperial College London: Spiral |
op_collection_id |
ftimperialcol |
language |
unknown |
topic |
Geochemistry & Geophysics 0403 Geology 0404 Geophysics |
spellingShingle |
Geochemistry & Geophysics 0403 Geology 0404 Geophysics Phillips, T Fazlikhani, H Gawthorpe, R Fossen, H Jackson, CA-L Bell, R Faleide, JI Rotevatn, A The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
topic_facet |
Geochemistry & Geophysics 0403 Geology 0404 Geophysics |
description |
The northern North Sea rift evolved through multiple rift phases within a highly heterogeneous crystalline basement. The geometry and evolution of syn‐rift depocenters during this multiphase evolution and the mechanisms and extent to which they were influenced by preexisting structural heterogeneities remain elusive, particularly at the regional scale. Using an extensive database of borehole‐constrained 2D seismic reflection data, we examine how the physiography of the northern North Sea rift evolved throughout late Permian‐Early Triassic (RP1) and Late Jurassic‐Early Cretaceous (RP2) rift phases, and assess the influence of basement structures related to the Caledonian orogeny and subsequent Devonian extension. During RP1, the location of major depocenters, the Stord and East Shetland basins, was controlled by favorably oriented Devonian shear zones. RP2 shows a diminished influence from structural heterogeneities, activity localizes along the Viking‐Sogn graben system and the East Shetland Basin, with negligible activity in the Stord Basin and Horda Platform. The Utsira High and the Devonian Lomre Shear Zone form the eastern barrier to rift activity during RP2. Toward the end of RP2, rift activity migrated northward as extension related to opening of the proto‐North Atlantic becomes the dominant regional stress as rift activity in the northern North Sea decreases. Through documenting the evolving syn‐rift depocenters of the northern North Sea rift, we show how structural heterogeneities and prior rift phases influence regional rift physiography and kinematics, controlling the segmentation of depocenters, as well as the locations, styles, and magnitude of fault activity and reactivation during subsequent events. |
author2 |
Research Council of Norway |
format |
Article in Journal/Newspaper |
author |
Phillips, T Fazlikhani, H Gawthorpe, R Fossen, H Jackson, CA-L Bell, R Faleide, JI Rotevatn, A |
author_facet |
Phillips, T Fazlikhani, H Gawthorpe, R Fossen, H Jackson, CA-L Bell, R Faleide, JI Rotevatn, A |
author_sort |
Phillips, T |
title |
The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
title_short |
The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
title_full |
The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
title_fullStr |
The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
title_full_unstemmed |
The influence of structural inheritance and multiphase extension on rift development, the northern North Sea |
title_sort |
influence of structural inheritance and multiphase extension on rift development, the northern north sea |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
http://hdl.handle.net/10044/1/75615 https://doi.org/10.31223/osf.io/ztqck |
long_lat |
ENVELOPE(-21.133,-21.133,63.994,63.994) ENVELOPE(21.477,21.477,77.149,77.149) |
geographic |
Sogn Utsira |
geographic_facet |
Sogn Utsira |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Tectonics 0278-7407 http://hdl.handle.net/10044/1/75615 doi:10.31223/osf.io/ztqck 125000/807097 |
op_rights |
©2019. The Authors. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.31223/osf.io/ztqck |
_version_ |
1766134015830523904 |