Paleontological view of the ages of the Deccan Traps, the Cretaceous/Tertiary boundary, and the India-Asia collision

Research Article| April 01, 1989 Paleontological view of the ages of the Deccan Traps, the Cretaceous/Tertiary boundary, and the India-Asia collision Jean-Jacques Jaeger; Jean-Jacques Jaeger 1Laboratoire de Palĝontologie des Vertĝbrĝs, Universitĝ Pierre et Marie Curie, Place Jussieu, 75005 Paris, France Search for other works by this author on: GSW Google Scholar Vincent Courtillot; Vincent Courtillot 2Laboratoire de Palĝomagnĝtisme et Gĝodynamique, Institut de Physique du Globe, Place Jussieu, 75005 Paris, France Search for other works by this author on: GSW Google Scholar Paul Tapponnier Paul Tapponnier 3Laboratoire de Tectonique, Institut de Physique du Globe, Place Jussieu, 75005 Paris, France Search for other works by this author on: GSW Google Scholar Author and Article Information Jean-Jacques Jaeger 1Laboratoire de Palĝontologie des Vertĝbrĝs, Universitĝ Pierre et Marie Curie, Place Jussieu, 75005 Paris, France Vincent Courtillot 2Laboratoire de Palĝomagnĝtisme et Gĝodynamique, Institut de Physique du Globe, Place Jussieu, 75005 Paris, France Paul Tapponnier 3Laboratoire de Tectonique, Institut de Physique du Globe, Place Jussieu, 75005 Paris, France Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1989) 17 (4): 316–319. https://doi.org/10.1130/0091-7613(1989)017<0316:PVOTAO>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 MailTo Tools Icon Tools Get Permissions Search Site Citation Jean-Jacques Jaeger, Vincent Courtillot, Paul Tapponnier; Paleontological view of the ages of the Deccan Traps, the Cretaceous/Tertiary boundary, and the India-Asia collision. Geology 1989;; 17 (4): 316–319. doi: https://doi.org/10.1130/0091-7613(1989)017<0316:PVOTAO>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 Volcanism in the Deccan Traps of India occurred over at most three magnetic chrons, centered on a main reversed chron. Paleontological data indicate that this reversed chron must coincide with 29R, which contains the Cretaceous/Tertiary (K/T) boundary. Recent 40Ar-39 Ar data may therefore provide one of the best estimates of the absolute age of the K/T boundary, 65.7 ±2.0 Ma. Moreover, the Eurasian character of K/T boundary terrestrial faunas in India suggests that this was also close to the time of India-Asia collision. This is significantly earlier than generally recognized, and implies about 4000 km of continental shortening in the collision zone, probably absorbed jointly by crustal thickening and strike-slip extrusion. 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.