Jurassic rifting evolution of the Apennines and Southern Alps (Italy): Parallels and differences

Research Article| March 01, 2011 Jurassic rifting evolution of the Apennines and Southern Alps (Italy): Parallels and differences Massimo Santantonio; Massimo Santantonio † Dipartimento di Scienze della Terra, Università degli Studi di Roma "La Sapienza," Piazzale Aldo Moro 5, I-00185 Rome, Italy †E-mail: massimo.santantonio@uniroma1.it Search for other works by this author on: GSW Google Scholar Eugenio Carminati Eugenio Carminati Dipartimento di Scienze della Terra, Università degli Studi di Roma "La Sapienza," Piazzale Aldo Moro 5, I-00185 Rome, Italy Search for other works by this author on: GSW Google Scholar Author and Article Information Massimo Santantonio † Dipartimento di Scienze della Terra, Università degli Studi di Roma "La Sapienza," Piazzale Aldo Moro 5, I-00185 Rome, Italy Eugenio Carminati Dipartimento di Scienze della Terra, Università degli Studi di Roma "La Sapienza," Piazzale Aldo Moro 5, I-00185 Rome, Italy †E-mail: massimo.santantonio@uniroma1.it Publisher: Geological Society of America Received: 05 Jun 2009 Revision Received: 12 Dec 2009 Accepted: 15 Dec 2009 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2011 Geological Society of America GSA Bulletin (2011) 123 (3-4): 468–484. https://doi.org/10.1130/B30104.1 Article history Received: 05 Jun 2009 Revision Received: 12 Dec 2009 Accepted: 15 Dec 2009 First Online: 08 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Massimo Santantonio, Eugenio Carminati; Jurassic rifting evolution of the Apennines and Southern Alps (Italy): Parallels and differences. GSA Bulletin 2011;; 123 (3-4): 468–484. doi: https://doi.org/10.1130/B30104.1 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 SocietyGSA Bulletin Search Advanced Search Abstract Jurassic rifting in the Southern Alps and Northern Apennines occurred within a relatively short (2–4 m.y.) interval of tectonic activity (late Hettangian–early Sinemurian) in proximal areas (central-eastern Southern Alps and Northern Apennines), and was followed by calm postrift sedimentation. The main axis of the rift jumped in the late Early Jurassic to the previously unaffected, mostly nonsubsiding and/or uplifted distal areas of southwestern Tuscany and the western Southern Alps. Synchronous stretching occurred in the Helvetic-Briançonnais domains of the Alps and in the Longobucco-Caloveto area (Calabria), here interpreted as the conjugate margin of western Southern Alps and southwestern Tuscany. Major differences occur in the extensional structural style of the Southern Alps and Apennines. The Northern Apennines are characterized by diffuse thin-skinned stretching at shallow depths and by localized thick-skinned stretching at deeper crustal levels. This style contrasts with the well-known thick-skinned nature of extensional tectonics in the Southern Alps, which are also characterized by a larger spacing between major normal faults. It is suggested that these different extensional styles were controlled by contrasting rheologies induced by the different stratigraphies. The strong strain partitioning and the diffuse shallow thin-skinned tectonics of the Northern Apennines basins are here related to the occurrence of thick (up to 2 km) evaporites that underlie a relatively thin (up to 1.3 km) carbonate platform. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.