Subduction of active spreading ridges and the disappearance of Andean-type cordilleras
We address the possible link between the age of subducting oceanic lithosphere and growth of elevated cordilleras versus extension-dominated arc regions. Singularity exists in South America: the lowest elevated Andean segments are found in Patagonia where the active Chile Ridge enters the trench. Su...
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Académie des sciences
2024-03-01
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| Series: | Comptes Rendus. Géoscience |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.250/ |
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| author | Scalabrino, Bruno Lagabrielle, Yves Faccenna, Claudio |
| author_facet | Scalabrino, Bruno Lagabrielle, Yves Faccenna, Claudio |
| author_sort | Scalabrino, Bruno |
| collection | DOAJ |
| description | We address the possible link between the age of subducting oceanic lithosphere and growth of elevated cordilleras versus extension-dominated arc regions. Singularity exists in South America: the lowest elevated Andean segments are found in Patagonia where the active Chile Ridge enters the trench. Subduction of active ridge triggers thermal doming, crustal extension and attenuation of former cordilleras. At the Antarctica–South America connection, three active ridge subductions induced the disruption of a former continuous cordillera during the opening of Drake Passage. Active ridge subduction induces lithosphere thermal erosion and related crustal extension in the upper plate. Evolution of regions worldwide experiencing ridge subduction confirms this hypothesis. |
| format | Article |
| id | doaj-art-478d9103852045a0a2a93200be0ad005 |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-478d9103852045a0a2a93200be0ad0052025-02-07T10:41:48ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252024-03-01356S27911410.5802/crgeos.25010.5802/crgeos.250Subduction of active spreading ridges and the disappearance of Andean-type cordillerasScalabrino, Bruno0Lagabrielle, Yves1Faccenna, Claudio2Université Côte d’Azur, CNRS, Observatoire de la Côte d’Azur, IRD, Géoazur, 250 rue Albert Einstein, Sophia Antipolis 06560 Valbonne, France35 Allée du Pargo, 56000 Vannes, FranceDepartement of Science, Roma Tre University, Roma, Italy; GFZ, German Research Center for Geoscience, GermanyWe address the possible link between the age of subducting oceanic lithosphere and growth of elevated cordilleras versus extension-dominated arc regions. Singularity exists in South America: the lowest elevated Andean segments are found in Patagonia where the active Chile Ridge enters the trench. Subduction of active ridge triggers thermal doming, crustal extension and attenuation of former cordilleras. At the Antarctica–South America connection, three active ridge subductions induced the disruption of a former continuous cordillera during the opening of Drake Passage. Active ridge subduction induces lithosphere thermal erosion and related crustal extension in the upper plate. Evolution of regions worldwide experiencing ridge subduction confirms this hypothesis.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.250/CordillerasActive spreading subductionSlab windowExtensional tectonicsAttenuation |
| spellingShingle | Scalabrino, Bruno Lagabrielle, Yves Faccenna, Claudio Subduction of active spreading ridges and the disappearance of Andean-type cordilleras Comptes Rendus. Géoscience Cordilleras Active spreading subduction Slab window Extensional tectonics Attenuation |
| title | Subduction of active spreading ridges and the disappearance of Andean-type cordilleras |
| title_full | Subduction of active spreading ridges and the disappearance of Andean-type cordilleras |
| title_fullStr | Subduction of active spreading ridges and the disappearance of Andean-type cordilleras |
| title_full_unstemmed | Subduction of active spreading ridges and the disappearance of Andean-type cordilleras |
| title_short | Subduction of active spreading ridges and the disappearance of Andean-type cordilleras |
| title_sort | subduction of active spreading ridges and the disappearance of andean type cordilleras |
| topic | Cordilleras Active spreading subduction Slab window Extensional tectonics Attenuation |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.250/ |
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