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Geological record of flat slab–induced extension in the southern Peruvian forearc

2017; Geological Society of America; Linguagem: Inglês

10.1130/g38990.1

1943-2682

Mélanie Noury, Mélody Philippon, Matthias Bernet, Jean‐Louis Paquette, Thierry Sempéré,

Geological and Tectonic Studies in Latin America

Research Article| June 09, 2017 Geological record of flat slab–induced extension in the southern Peruvian forearc Mйlanie Noury; Mйlanie Noury * 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France2Geosciences Montpellier, UMR 5243, Université des Antilles, 97159 Pointe-à-Pitre, France *E-mail: melanienoury@gmail.com Search for other works by this author on: GSW Google Scholar Mйlody Philippon; Mйlody Philippon 2Geosciences Montpellier, UMR 5243, Université des Antilles, 97159 Pointe-à-Pitre, France Search for other works by this author on: GSW Google Scholar Matthias Bernet; Matthias Bernet 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France Search for other works by this author on: GSW Google Scholar Jean-Louis Paquette; Jean-Louis Paquette 3Laboratoire Magmas et Volcans, Université Clermont-Auvergne, CNRS, IRD, OPGC (Observatoire de Physique du Globe), F-63000 Clermont-Ferrand, France Search for other works by this author on: GSW Google Scholar Thierry Sempere Thierry Sempere 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France4IRD, ISTerre (Institut des Sciences de la Terre), F-73376 Le Bourget du Lac, France Search for other works by this author on: GSW Google Scholar Author and Article Information Mйlanie Noury * 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France2Geosciences Montpellier, UMR 5243, Université des Antilles, 97159 Pointe-à-Pitre, France Mйlody Philippon 2Geosciences Montpellier, UMR 5243, Université des Antilles, 97159 Pointe-à-Pitre, France Matthias Bernet 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France Jean-Louis Paquette 3Laboratoire Magmas et Volcans, Université Clermont-Auvergne, CNRS, IRD, OPGC (Observatoire de Physique du Globe), F-63000 Clermont-Ferrand, France Thierry Sempere 1Université Grenoble-Alpes, CNRS, ISTerre (Institut des Sciences de la Terre), F-38041 Grenoble, France4IRD, ISTerre (Institut des Sciences de la Terre), F-73376 Le Bourget du Lac, France *E-mail: melanienoury@gmail.com Publisher: Geological Society of America Received: 24 Jan 2017 Revision Received: 15 Apr 2017 Accepted: 19 Apr 2017 First Online: 23 Jun 2017 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2017 Geological Society of America Geology (2017) 45 (8): 723–726. https://doi.org/10.1130/G38990.1 Article history Received: 24 Jan 2017 Revision Received: 15 Apr 2017 Accepted: 19 Apr 2017 First Online: 23 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Mйlanie Noury, Mйlody Philippon, Matthias Bernet, Jean-Louis Paquette, Thierry Sempere; Geological record of flat slab–induced extension in the southern Peruvian forearc. Geology 2017;; 45 (8): 723–726. doi: https://doi.org/10.1130/G38990.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The long-lived Andean subduction zone underwent several flat slab episodes and is therefore ideal to study the consequences of a complete cycle of slab flattening and steepening on the upper plate deformation pattern. In the modern Peruvian forearc (15°–17°S), slab flattening caused a Paleogene (52–30 Ma) landward migration of volcanic activity. Combining structural geology and a source-to-sink thermochronological study, we show that the flat slab period is contemporaneous with uplift accommodated by large-scale crustal extension in the forearc. In this light, we argue that the study area is an ancient analog to the modern Mexican and northern Peruvian forearcs located above modern flat slab segments and currently undergoing widespread extension. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.