Ductile extension in alpine Corsica

Abstract

Research Article| October 01, 1990 Ductile extension in alpine Corsica Laurent Jolivet; Laurent Jolivet 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France Search for other works by this author on: GSW Google Scholar Roland Dubois; Roland Dubois 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Search for other works by this author on: GSW Google Scholar Marc Fournier; Marc Fournier 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France Search for other works by this author on: GSW Google Scholar Bruno Goffé; Bruno Goffé 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France Search for other works by this author on: GSW Google Scholar André Michard; André Michard 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Search for other works by this author on: GSW Google Scholar Claudie Jourdan Claudie Jourdan 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Search for other works by this author on: GSW Google Scholar Author and Article Information Laurent Jolivet 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France Roland Dubois 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Marc Fournier 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France Bruno Goffé 1Département de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, Cedex 05, France André Michard 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Claudie Jourdan 2Laboratoire de Géologie Structurale, Université Paris Sud, Orsay, Batiment 504, 91405, Orsay Cedex, France Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1990) 18 (10): 1007–1010. https://doi.org/10.1130/0091-7613(1990)018<1007:DEIAC>2.3.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Laurent Jolivet, Roland Dubois, Marc Fournier, Bruno Goffé, André Michard, Claudie Jourdan; Ductile extension in alpine Corsica. Geology 1990;; 18 (10): 1007–1010. doi: https://doi.org/10.1130/0091-7613(1990)018<1007:DEIAC>2.3.CO;2 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 Ductile deformation in high-pressure (P)-low temperature (T) conditions due to the westward thrusting of oceanic material onto a continental basement in alpine Corsica is overprinted by a late deformation event with a reverse shear sense (eastward) that took place in less severe P-T conditions. We show that the late deformation can be linked to extension during rifting and spreading of the Liguro Provençal basin from late Oligocene to late-middle Miocene time. Major compressive thrust contacts were reactivated as ductile normal faults and, in some units, only a penetrative eastward shear can be observed. This extension following the thickening of the crust brought tectonic units which underwent very different P- T conditions during the earlier stage into close contact. The Balagne nappe, which shows neither significant ductile deformation nor metamorphism, directly overlies the high-P units. The extensional deformation is distributed through the entire thickness of the nappe stack but is more important along the major thrust contacts, which localize the strain. The geometry of the crustal extension is controlled by that of the early compressive thrusts. The latest structures are east-dipping brittle normal faults which bound the early to middle Miocene Saint Florent half graben. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.