A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding
In the Corbières area, a large-scale nappe has been identified at the beginning of the 20th century: the “Nappe des Corbières Orientales” (NCO) resting over a thick Triassic sole. This geological object is located at the NE of the Pyrenees, close to the Gulf of Lions. At this place, the chain change...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | BSGF - Earth Sciences Bulletin |
| Subjects: | |
| Online Access: | https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210043/bsgf210043.html |
| _version_ | 1797843737839140864 |
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| author | Parizot Oriane Frizon de Lamotte Dominique Missenard Yves |
| author_facet | Parizot Oriane Frizon de Lamotte Dominique Missenard Yves |
| author_sort | Parizot Oriane |
| collection | DOAJ |
| description | In the Corbières area, a large-scale nappe has been identified at the beginning of the 20th century: the “Nappe des Corbières Orientales” (NCO) resting over a thick Triassic sole. This geological object is located at the NE of the Pyrenees, close to the Gulf of Lions. At this place, the chain changes in orientation from E-W to NE-SW and presents in detail, a great complexity. The existence of the nappe itself has never been contested. However, due to its overall complexity, several controversies exist regarding the style and chronology of deformation of its substratum in the so-called the “Pinède de Durban” in particular. We show that the new concepts of salt tectonics can clarify these old debates. Indeed, the rise of the Triassic salt during Mesozoic rifting episodes results in the development of characteristic sedimentary sequences (halokinetic sequences) on top of salt walls. It is along one of these, coinciding with the prolongation of the Cévenole Fault System, that the NCO has been individualized. During its Cenozoic emplacement, a gravity-gliding component, explaining the importance of the observed translation, could result from an uplift preceding the rifting at the origin of the Gulf of Lions. |
| first_indexed | 2024-04-09T17:10:40Z |
| format | Article |
| id | doaj.art-ca64225d124a475fa942060ef3658440 |
| institution | Directory Open Access Journal |
| issn | 1777-5817 |
| language | English |
| last_indexed | 2024-04-09T17:10:40Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | BSGF - Earth Sciences Bulletin |
| spelling | doaj.art-ca64225d124a475fa942060ef36584402023-04-20T08:21:29ZengEDP SciencesBSGF - Earth Sciences Bulletin1777-58172023-01-01194610.1051/bsgf/2023003bsgf210043A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity glidingParizot Oriane0https://orcid.org/0000-0002-3113-7929Frizon de Lamotte Dominique1https://orcid.org/0000-0002-6339-3572Missenard Yves2https://orcid.org/0000-0001-7484-7544Université Paris-Saclay, CNRS, GEOPSCY Cergy Paris Université, GECUniversité Paris-Saclay, CNRS, GEOPSIn the Corbières area, a large-scale nappe has been identified at the beginning of the 20th century: the “Nappe des Corbières Orientales” (NCO) resting over a thick Triassic sole. This geological object is located at the NE of the Pyrenees, close to the Gulf of Lions. At this place, the chain changes in orientation from E-W to NE-SW and presents in detail, a great complexity. The existence of the nappe itself has never been contested. However, due to its overall complexity, several controversies exist regarding the style and chronology of deformation of its substratum in the so-called the “Pinède de Durban” in particular. We show that the new concepts of salt tectonics can clarify these old debates. Indeed, the rise of the Triassic salt during Mesozoic rifting episodes results in the development of characteristic sedimentary sequences (halokinetic sequences) on top of salt walls. It is along one of these, coinciding with the prolongation of the Cévenole Fault System, that the NCO has been individualized. During its Cenozoic emplacement, a gravity-gliding component, explaining the importance of the observed translation, could result from an uplift preceding the rifting at the origin of the Gulf of Lions.https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210043/bsgf210043.htmlhistorical review“nappe des corbières orientales”pinède de durbanriftingsalt tectonicsgravity gliding |
| spellingShingle | Parizot Oriane Frizon de Lamotte Dominique Missenard Yves A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding BSGF - Earth Sciences Bulletin historical review “nappe des corbières orientales” pinède de durban rifting salt tectonics gravity gliding |
| title | A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding |
| title_full | A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding |
| title_fullStr | A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding |
| title_full_unstemmed | A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding |
| title_short | A new look at old debates about the Corbières (NE-Pyrenees) geology: salt tectonics and gravity gliding |
| title_sort | new look at old debates about the corbieres ne pyrenees geology salt tectonics and gravity gliding |
| topic | historical review “nappe des corbières orientales” pinède de durban rifting salt tectonics gravity gliding |
| url | https://www.bsgf.fr/articles/bsgf/full_html/2023/01/bsgf210043/bsgf210043.html |
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