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Tectonic setting and timing of the final Deccan flood basalt eruptions

2010; Geological Society of America; Volume: 38; Issue: 9 Linguagem: Inglês

10.1130/g31072.1

1943-2682

P. R. Hooper, Mike Widdowson, S. P. Kelley,

earthquake and tectonic studies

Research Article| September 01, 2010 Tectonic setting and timing of the final Deccan flood basalt eruptions Peter Hooper; Peter Hooper Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK Search for other works by this author on: GSW Google Scholar Mike Widdowson; Mike Widdowson * Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK *E-mail: m.widdowson@open.ac.uk. Search for other works by this author on: GSW Google Scholar Simon Kelley Simon Kelley Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK Search for other works by this author on: GSW Google Scholar Author and Article Information Peter Hooper Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK Mike Widdowson * Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK Simon Kelley Volcano Dynamics Group, Department of Earth and Environmental Sciences, Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK *E-mail: m.widdowson@open.ac.uk. Publisher: Geological Society of America Received: 28 Jan 2010 Revision Received: 29 Apr 2010 Accepted: 30 Apr 2010 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2010 Geological Society of America Geology (2010) 38 (9): 839–842. https://doi.org/10.1130/G31072.1 Article history Received: 28 Jan 2010 Revision Received: 29 Apr 2010 Accepted: 30 Apr 2010 First Online: 09 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 Peter Hooper, Mike Widdowson, Simon Kelley; Tectonic setting and timing of the final Deccan flood basalt eruptions. Geology 2010;; 38 (9): 839–842. doi: https://doi.org/10.1130/G31072.1 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 role of extensional tectonics in the generation of basaltic melt and eruption of continental flood basalts is controversial, and yet it remains crucial to understanding the origin and cause of these large-volume eruptions. Establishing the timing of lithospheric extension, continental rifting, and the onset of continental flood basalt volcanism is therefore of importance to petrogenetic models. Detailed mapping along the Mumbai coast, India, reveals three chemically distinct sets of dikes, which, together with high-precision 40Ar/39Ar dating, demonstrate the temporal relationship between lithospheric extension and Deccan volcanism. The east-west extension evident along the west coast of India, which led to the separation of the Seychelles from the Indian plate, only began during the final phases of the basalt eruptions, and cannot have initiated the large-volume eruptions of the Deccan flood basalt province. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.