Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées
This contribution reviews the challenges of imaging collisional orogens, focusing on the example of the Pyrenean domain. Indeed, important progresses have been accomplished regarding our understanding of the architecture of this mountain range over the last decades, thanks to the development of inno...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | BSGF - Earth Sciences Bulletin |
| Subjects: | |
| Online Access: | https://www.bsgf.fr/articles/bsgf/full_html/2022/01/bsgf210018/bsgf210018.html |
| _version_ | 1811179589585600512 |
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| author | Chevrot Sébastien Sylvander Matthieu Villaseñor Antonio Díaz Jordi Stehly Laurent Boué Pierre Monteiller Vadim Martin Roland Lehujeur Maximilien Beller Stephen Brives Jacques Bitri Adnand Calassou Sylvain Collin Magali Ford Mary Jolivet Laurent Manatschal Gianreto Masini Emmanuel Mouthereau Frédéric Vidal Olivier |
| author_facet | Chevrot Sébastien Sylvander Matthieu Villaseñor Antonio Díaz Jordi Stehly Laurent Boué Pierre Monteiller Vadim Martin Roland Lehujeur Maximilien Beller Stephen Brives Jacques Bitri Adnand Calassou Sylvain Collin Magali Ford Mary Jolivet Laurent Manatschal Gianreto Masini Emmanuel Mouthereau Frédéric Vidal Olivier |
| author_sort | Chevrot Sébastien |
| collection | DOAJ |
| description | This contribution reviews the challenges of imaging collisional orogens, focusing on the example of the Pyrenean domain. Indeed, important progresses have been accomplished regarding our understanding of the architecture of this mountain range over the last decades, thanks to the development of innovative passive imaging techniques, relying on a more thorough exploitation of the information in seismic signals, as well as new seismic acquisitions. New tomographic images provide evidence for continental subduction of Iberian crust beneath the western and central Pyrénées, but not beneath the eastern Pyrénées. Relics of a Cretaceous hyper-extended and segmented rift are found within the North Pyrenean Zone, where the imaged crust is thinner (10–25 km). This zone of thinned crust coincides with a band of positive Bouguer anomalies that is absent in the Eastern Pyrénées. Overall, the new tomographic images provide further support to the idea that the Pyrénées result from the inversion of hyperextended segmented rift systems. |
| first_indexed | 2024-04-11T06:36:48Z |
| format | Article |
| id | doaj.art-1aca0c3b5f394fd694eddec4c7f870dc |
| institution | Directory Open Access Journal |
| issn | 1777-5817 |
| language | English |
| last_indexed | 2024-04-11T06:36:48Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | BSGF - Earth Sciences Bulletin |
| spelling | doaj.art-1aca0c3b5f394fd694eddec4c7f870dc2022-12-22T04:39:39ZengEDP SciencesBSGF - Earth Sciences Bulletin1777-58172022-01-01193110.1051/bsgf/2021049bsgf210018Passive imaging of collisional orogens: a review of a decade of geophysical studies in the PyrénéesChevrot Sébastien0https://orcid.org/0000-0002-6508-2524Sylvander Matthieu1https://orcid.org/0000-0002-5763-2012Villaseñor Antonio2https://orcid.org/0000-0001-8592-4832Díaz Jordi3https://orcid.org/0000-0003-1801-0541Stehly Laurent4Boué Pierre5https://orcid.org/0000-0001-9153-4048Monteiller Vadim6Martin Roland7Lehujeur Maximilien8https://orcid.org/0000-0002-5606-6864Beller Stephen9https://orcid.org/0000-0002-5331-0788Brives Jacques10Bitri Adnand11Calassou Sylvain12https://orcid.org/0000-0003-1685-1910Collin Magali13Ford Mary14https://orcid.org/0000-0002-8343-188XJolivet Laurent15https://orcid.org/0000-0002-2596-2017Manatschal Gianreto16https://orcid.org/0000-0003-3834-2033Masini Emmanuel17https://orcid.org/0000-0002-4746-1600Mouthereau Frédéric18https://orcid.org/0000-0001-7073-4905Vidal Olivier19GET, UMR 5563, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRS, IRDIRAP, UMR 5277, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRSInstitute of Marine Sciences, CSICGeosciences Barcelona, CSICISTerre, UMR 5275, Université Grenoble AlpesISTerre, UMR 5275, Université Grenoble AlpesLMA, UPR 7051, Université Aix-Marseille, CNRSGET, UMR 5563, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRS, IRDGET, UMR 5563, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRS, IRDGET, UMR 5563, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRS, IRDISTerre, UMR 5275, Université Grenoble AlpesBRGMCentre de recherche de TOTALCentre de recherche de TOTALCRPG, UMR 7358, Université de LorraineSorbonne Université, UMR 7193, CNRS-UPMC, Institut des Sciences de la TerreITES EOST, UMR 7063, Université de Strasbourg, CNRSISTerre, UMR 5275, Université Grenoble AlpesGET, UMR 5563, Observatoire Midi-Pyrénées, Université Paul-Sabatier, CNRS, IRDISTerre, UMR 5275, Université Grenoble AlpesThis contribution reviews the challenges of imaging collisional orogens, focusing on the example of the Pyrenean domain. Indeed, important progresses have been accomplished regarding our understanding of the architecture of this mountain range over the last decades, thanks to the development of innovative passive imaging techniques, relying on a more thorough exploitation of the information in seismic signals, as well as new seismic acquisitions. New tomographic images provide evidence for continental subduction of Iberian crust beneath the western and central Pyrénées, but not beneath the eastern Pyrénées. Relics of a Cretaceous hyper-extended and segmented rift are found within the North Pyrenean Zone, where the imaged crust is thinner (10–25 km). This zone of thinned crust coincides with a band of positive Bouguer anomalies that is absent in the Eastern Pyrénées. Overall, the new tomographic images provide further support to the idea that the Pyrénées result from the inversion of hyperextended segmented rift systems.https://www.bsgf.fr/articles/bsgf/full_html/2022/01/bsgf210018/bsgf210018.htmlpyrénéesgeophysicsseismic tomography |
| spellingShingle | Chevrot Sébastien Sylvander Matthieu Villaseñor Antonio Díaz Jordi Stehly Laurent Boué Pierre Monteiller Vadim Martin Roland Lehujeur Maximilien Beller Stephen Brives Jacques Bitri Adnand Calassou Sylvain Collin Magali Ford Mary Jolivet Laurent Manatschal Gianreto Masini Emmanuel Mouthereau Frédéric Vidal Olivier Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées BSGF - Earth Sciences Bulletin pyrénées geophysics seismic tomography |
| title | Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées |
| title_full | Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées |
| title_fullStr | Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées |
| title_full_unstemmed | Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées |
| title_short | Passive imaging of collisional orogens: a review of a decade of geophysical studies in the Pyrénées |
| title_sort | passive imaging of collisional orogens a review of a decade of geophysical studies in the pyrenees |
| topic | pyrénées geophysics seismic tomography |
| url | https://www.bsgf.fr/articles/bsgf/full_html/2022/01/bsgf210018/bsgf210018.html |
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