Deep structure of the Porcupine Basin from wide-angle seismic data
International audience 15 The Porcupine Basin, part of the frontier petroleum exploration province west of Ireland, has an 16 extended history that commenced prior to the opening of the North Atlantic Ocean. Lithospheric 17 stretching factors have previously been estimated to increase from <2 in...
Published in: | Geological Society, London, Petroleum Geology Conference series |
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Online Access: | https://hal.science/hal-01399022 https://hal.science/hal-01399022/document https://hal.science/hal-01399022/file/PGC8.26_R1.pdf https://doi.org/10.1144/PGC8.26 |
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ftsorbonneuniv:oai:HAL:hal-01399022v1 2024-06-23T07:55:09+00:00 Deep structure of the Porcupine Basin from wide-angle seismic data Watremez, Louise Prada, Manel Minshull, Tim O 'Reilly, Brian Chen, Chen Reston, Tim Shannon, Pat Wagner, Gerlind Gaw, Viola Klaeschen, Dirk Edwards, Rose Lebedev, Sergei Institut des Sciences de la Terre de Paris (iSTeP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) National Oceanography Centre Southampton (NOC) University of Southampton Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) School of Cosmic Physics Dublin Dublin Institute for Advanced Studies (DIAS) School of Geography, Earth and Environmental Sciences Birmingham University of Birmingham Birmingham School of Earth Sciences University College Dublin Dublin (UCD) Helmholtz Centre for Ocean Research Kiel (GEOMAR) 2016 https://hal.science/hal-01399022 https://hal.science/hal-01399022/document https://hal.science/hal-01399022/file/PGC8.26_R1.pdf https://doi.org/10.1144/PGC8.26 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1144/PGC8.26 hal-01399022 https://hal.science/hal-01399022 https://hal.science/hal-01399022/document https://hal.science/hal-01399022/file/PGC8.26_R1.pdf doi:10.1144/PGC8.26 info:eu-repo/semantics/OpenAccess Geological Society, London, Petroleum Geology Conference series https://hal.science/hal-01399022 Geological Society, London, Petroleum Geology Conference series, 2016, pp.1-30. ⟨10.1144/PGC8.26⟩ [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2016 ftsorbonneuniv https://doi.org/10.1144/PGC8.26 2024-06-06T23:50:19Z International audience 15 The Porcupine Basin, part of the frontier petroleum exploration province west of Ireland, has an 16 extended history that commenced prior to the opening of the North Atlantic Ocean. Lithospheric 17 stretching factors have previously been estimated to increase from <2 in the north to >6 in the south of 18 the basin. Thus, it is an ideal location to study the processes leading to hyperextension on continental 19 margins. The Porcupine Median Ridge (PMR) is located in the south of the basin and has been 20 alternatively interpreted as a volcanic feature, a serpentinite mud diapir, or a tilted block of 21 continental crust. Each of these interpretations has different implications for the thermal history of the 22 basin. We present results from travel-time tomographic modelling of two ~300-km-long wide-angle 23 seismic profiles across the northern and southern parts of the basin. Our results show: (1) the 24 geometry of the crust, with maximum crustal stretching factors up to 6 and 10 along the northern and 25 southern profiles, respectively; (2) asymmetry of the basin structures, suggesting some simple shear 26 Article text Click here to download Article text PGC_Proceeding-revised.docx Article in Journal/Newspaper North Atlantic HAL Sorbonne Université Median Ridge ENVELOPE(-62.833,-62.833,-64.983,-64.983) Geological Society, London, Petroleum Geology Conference series 8 1 199 209 |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences Watremez, Louise Prada, Manel Minshull, Tim O 'Reilly, Brian Chen, Chen Reston, Tim Shannon, Pat Wagner, Gerlind Gaw, Viola Klaeschen, Dirk Edwards, Rose Lebedev, Sergei Deep structure of the Porcupine Basin from wide-angle seismic data |
topic_facet |
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience 15 The Porcupine Basin, part of the frontier petroleum exploration province west of Ireland, has an 16 extended history that commenced prior to the opening of the North Atlantic Ocean. Lithospheric 17 stretching factors have previously been estimated to increase from <2 in the north to >6 in the south of 18 the basin. Thus, it is an ideal location to study the processes leading to hyperextension on continental 19 margins. The Porcupine Median Ridge (PMR) is located in the south of the basin and has been 20 alternatively interpreted as a volcanic feature, a serpentinite mud diapir, or a tilted block of 21 continental crust. Each of these interpretations has different implications for the thermal history of the 22 basin. We present results from travel-time tomographic modelling of two ~300-km-long wide-angle 23 seismic profiles across the northern and southern parts of the basin. Our results show: (1) the 24 geometry of the crust, with maximum crustal stretching factors up to 6 and 10 along the northern and 25 southern profiles, respectively; (2) asymmetry of the basin structures, suggesting some simple shear 26 Article text Click here to download Article text PGC_Proceeding-revised.docx |
author2 |
Institut des Sciences de la Terre de Paris (iSTeP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) National Oceanography Centre Southampton (NOC) University of Southampton Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 (LOG) Institut national des sciences de l'Univers (INSU - CNRS)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Nord ) School of Cosmic Physics Dublin Dublin Institute for Advanced Studies (DIAS) School of Geography, Earth and Environmental Sciences Birmingham University of Birmingham Birmingham School of Earth Sciences University College Dublin Dublin (UCD) Helmholtz Centre for Ocean Research Kiel (GEOMAR) |
format |
Article in Journal/Newspaper |
author |
Watremez, Louise Prada, Manel Minshull, Tim O 'Reilly, Brian Chen, Chen Reston, Tim Shannon, Pat Wagner, Gerlind Gaw, Viola Klaeschen, Dirk Edwards, Rose Lebedev, Sergei |
author_facet |
Watremez, Louise Prada, Manel Minshull, Tim O 'Reilly, Brian Chen, Chen Reston, Tim Shannon, Pat Wagner, Gerlind Gaw, Viola Klaeschen, Dirk Edwards, Rose Lebedev, Sergei |
author_sort |
Watremez, Louise |
title |
Deep structure of the Porcupine Basin from wide-angle seismic data |
title_short |
Deep structure of the Porcupine Basin from wide-angle seismic data |
title_full |
Deep structure of the Porcupine Basin from wide-angle seismic data |
title_fullStr |
Deep structure of the Porcupine Basin from wide-angle seismic data |
title_full_unstemmed |
Deep structure of the Porcupine Basin from wide-angle seismic data |
title_sort |
deep structure of the porcupine basin from wide-angle seismic data |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01399022 https://hal.science/hal-01399022/document https://hal.science/hal-01399022/file/PGC8.26_R1.pdf https://doi.org/10.1144/PGC8.26 |
long_lat |
ENVELOPE(-62.833,-62.833,-64.983,-64.983) |
geographic |
Median Ridge |
geographic_facet |
Median Ridge |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geological Society, London, Petroleum Geology Conference series https://hal.science/hal-01399022 Geological Society, London, Petroleum Geology Conference series, 2016, pp.1-30. ⟨10.1144/PGC8.26⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1144/PGC8.26 hal-01399022 https://hal.science/hal-01399022 https://hal.science/hal-01399022/document https://hal.science/hal-01399022/file/PGC8.26_R1.pdf doi:10.1144/PGC8.26 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1144/PGC8.26 |
container_title |
Geological Society, London, Petroleum Geology Conference
series |
container_volume |
8 |
container_issue |
1 |
container_start_page |
199 |
op_container_end_page |
209 |
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1802647616335380480 |