Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea
Spatio-temporal analysis of basins formed along sheared margins has received much less attention than those formed along orthogonally extended margins. Knowledge about the structural evolution of such basins is important for petroleum exploration but there has been a lack of studies that document th...
Published in: | Basin Research |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
John Wiley & Sons Ltd.
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/2597533 https://doi.org/10.1111/bre.12253 |
id |
ftunivstavanger:oai:uis.brage.unit.no:11250/2597533 |
---|---|
record_format |
openpolar |
spelling |
ftunivstavanger:oai:uis.brage.unit.no:11250/2597533 2023-06-11T04:10:32+02:00 Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea Kristensen, Thomas Berg Rotevatn, Atle Marvik, Maria Henstra, Gijs Allard Gawthorpe, Robert Ravnås, Rodmar Norwegian Barents Sea 2017-08-24T09:23:20Z application/pdf http://hdl.handle.net/11250/2597533 https://doi.org/10.1111/bre.12253 eng eng John Wiley & Sons Ltd. http://onlinelibrary.wiley.com/doi/10.1111/bre.12253/full Kristensen, T.B., Rotevatn, A., Marvik, M. et al. (2018) Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea. Basin Research, 30(2), pp. 279–301 urn:issn:0950-091X http://hdl.handle.net/11250/2597533 https://doi.org/10.1111/bre.12253 cristin:1488262 Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no © 2017 The Authors 279–301 30 Basin Research 2 geologi geology Barentshavet VDP::Mathematics and natural science: 400::Geosciences: 450 Journal article Peer reviewed 2017 ftunivstavanger https://doi.org/10.1111/bre.12253 2023-05-29T16:02:48Z Spatio-temporal analysis of basins formed along sheared margins has received much less attention than those formed along orthogonally extended margins. Knowledge about the structural evolution of such basins is important for petroleum exploration but there has been a lack of studies that document these based on 3D seismic reflection data. In this study, we demonstrate how partitioning of strain during deformation of the central and southern part of the Sørvestsnaget Basin along the Senja Shear Margin, Norwegian Barents Sea, facilitated coeval shortening and extension. This is achieved through quantitative analysis of syn-kinematic growth strata using 3D seismic data. Our results show that during Cenozoic extensional faulting, folds and thrusts developed coevally and orthogonal to sub-orthogonal to normal faults. We attribute this strain partitioning to be a result of the right-lateral oblique plate motions along the margin. Rotation of fold hinge-lines and indications of hinge-parallel extension indicate that the dominating deformation mechanism in the central and southern Sørvestsnaget Basin during opening along the Senja Shear Margin was transtensional. We also argue that interpretation of shortening structures attributed to inversion along the margin should consider that partitioning of strain may result in shortening structures that are coeval with extensional faults and not a result of a separate compressional phase. publishedVersion Article in Journal/Newspaper Barents Sea Barentshav* University of Stavanger: UiS Brage Barents Sea Senja ENVELOPE(16.803,16.803,69.081,69.081) Sørvestsnaget ENVELOPE(17.500,17.500,73.667,73.667) Basin Research 30 2 279 301 |
institution |
Open Polar |
collection |
University of Stavanger: UiS Brage |
op_collection_id |
ftunivstavanger |
language |
English |
topic |
geologi geology Barentshavet VDP::Mathematics and natural science: 400::Geosciences: 450 |
spellingShingle |
geologi geology Barentshavet VDP::Mathematics and natural science: 400::Geosciences: 450 Kristensen, Thomas Berg Rotevatn, Atle Marvik, Maria Henstra, Gijs Allard Gawthorpe, Robert Ravnås, Rodmar Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
topic_facet |
geologi geology Barentshavet VDP::Mathematics and natural science: 400::Geosciences: 450 |
description |
Spatio-temporal analysis of basins formed along sheared margins has received much less attention than those formed along orthogonally extended margins. Knowledge about the structural evolution of such basins is important for petroleum exploration but there has been a lack of studies that document these based on 3D seismic reflection data. In this study, we demonstrate how partitioning of strain during deformation of the central and southern part of the Sørvestsnaget Basin along the Senja Shear Margin, Norwegian Barents Sea, facilitated coeval shortening and extension. This is achieved through quantitative analysis of syn-kinematic growth strata using 3D seismic data. Our results show that during Cenozoic extensional faulting, folds and thrusts developed coevally and orthogonal to sub-orthogonal to normal faults. We attribute this strain partitioning to be a result of the right-lateral oblique plate motions along the margin. Rotation of fold hinge-lines and indications of hinge-parallel extension indicate that the dominating deformation mechanism in the central and southern Sørvestsnaget Basin during opening along the Senja Shear Margin was transtensional. We also argue that interpretation of shortening structures attributed to inversion along the margin should consider that partitioning of strain may result in shortening structures that are coeval with extensional faults and not a result of a separate compressional phase. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Kristensen, Thomas Berg Rotevatn, Atle Marvik, Maria Henstra, Gijs Allard Gawthorpe, Robert Ravnås, Rodmar |
author_facet |
Kristensen, Thomas Berg Rotevatn, Atle Marvik, Maria Henstra, Gijs Allard Gawthorpe, Robert Ravnås, Rodmar |
author_sort |
Kristensen, Thomas Berg |
title |
Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
title_short |
Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
title_full |
Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
title_fullStr |
Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
title_full_unstemmed |
Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea |
title_sort |
structural evolution of sheared margin basins: the role of strain partitioning. sørvestsnaget basin, norwegian barents sea |
publisher |
John Wiley & Sons Ltd. |
publishDate |
2017 |
url |
http://hdl.handle.net/11250/2597533 https://doi.org/10.1111/bre.12253 |
op_coverage |
Norwegian Barents Sea |
long_lat |
ENVELOPE(16.803,16.803,69.081,69.081) ENVELOPE(17.500,17.500,73.667,73.667) |
geographic |
Barents Sea Senja Sørvestsnaget |
geographic_facet |
Barents Sea Senja Sørvestsnaget |
genre |
Barents Sea Barentshav* |
genre_facet |
Barents Sea Barentshav* |
op_source |
279–301 30 Basin Research 2 |
op_relation |
http://onlinelibrary.wiley.com/doi/10.1111/bre.12253/full Kristensen, T.B., Rotevatn, A., Marvik, M. et al. (2018) Structural evolution of sheared margin basins: the role of strain partitioning. Sørvestsnaget Basin, Norwegian Barents Sea. Basin Research, 30(2), pp. 279–301 urn:issn:0950-091X http://hdl.handle.net/11250/2597533 https://doi.org/10.1111/bre.12253 cristin:1488262 |
op_rights |
Navngivelse-Ikkekommersiell 4.0 Internasjonal http://creativecommons.org/licenses/by-nc/4.0/deed.no © 2017 The Authors |
op_doi |
https://doi.org/10.1111/bre.12253 |
container_title |
Basin Research |
container_volume |
30 |
container_issue |
2 |
container_start_page |
279 |
op_container_end_page |
301 |
_version_ |
1768384989993369600 |