Lateral transport of suevite inferred from 3D shape-fabric analysis: Evidence from the Ries impact crater, Germany

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Research Article| November 01, 2011 Lateral transport of suevite inferred from 3D shape-fabric analysis: Evidence from the Ries impact crater, Germany Cornelia Meyer; Cornelia Meyer † 1Museum of Natural History Berlin, Leibniz Institute at the Humboldt University Berlin, Invalidenstrasse 43, 10115 Berlin, Germany †E-mail: cornelia.meyer@utweiler.de Search for other works by this author on: GSW Google Scholar Michel Jébrak; Michel Jébrak 2Université du Québec à Montréal, Département des Sciences de la Terre et de l'Atmosphère, CP 8888, Centre-Ville, Montréal, Québec H4A 1N4, Canada Search for other works by this author on: GSW Google Scholar Dieter Stöffler; Dieter Stöffler 1Museum of Natural History Berlin, Leibniz Institute at the Humboldt University Berlin, Invalidenstrasse 43, 10115 Berlin, Germany Search for other works by this author on: GSW Google Scholar Ulrich Riller Ulrich Riller 3McMaster University Hamilton, School of Geography and Earth Sciences and Origins Institute, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada Search for other works by this author on: GSW Google Scholar Author and Article Information Cornelia Meyer † 1Museum of Natural History Berlin, Leibniz Institute at the Humboldt University Berlin, Invalidenstrasse 43, 10115 Berlin, Germany Michel Jébrak 2Université du Québec à Montréal, Département des Sciences de la Terre et de l'Atmosphère, CP 8888, Centre-Ville, Montréal, Québec H4A 1N4, Canada Dieter Stöffler 1Museum of Natural History Berlin, Leibniz Institute at the Humboldt University Berlin, Invalidenstrasse 43, 10115 Berlin, Germany Ulrich Riller 3McMaster University Hamilton, School of Geography and Earth Sciences and Origins Institute, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada †E-mail: cornelia.meyer@utweiler.de Publisher: Geological Society of America Received: 12 Aug 2010 Revision Received: 07 Feb 2011 Accepted: 10 Feb 2011 First Online: 08 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 2011 Geological Society of America GSA Bulletin (2011) 123 (11-12): 2312–2319. https://doi.org/10.1130/B30393.1 Article history Received: 12 Aug 2010 Revision Received: 07 Feb 2011 Accepted: 10 Feb 2011 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 Cornelia Meyer, Michel Jébrak, Dieter Stöffler, Ulrich Riller; Lateral transport of suevite inferred from 3D shape-fabric analysis: Evidence from the Ries impact crater, Germany. GSA Bulletin 2011;; 123 (11-12): 2312–2319. doi: https://doi.org/10.1130/B30393.1 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 The transport mechanism of suevite particles during impact cratering is poorly understood and was studied at the 15 Ma Ries crater in southern Germany. Two emplacement modes of suevite deposits are generally discussed: (1) fallback of plume material into the crater and its periphery upon collapse of an ejecta plume; and (2) horizontal transport of ejected material, akin to emplacement of pyroclastic deposits erupting from volcanic centers. In order to differentiate between the two emplacement modes of suevite deposition, we analyzed the shape fabrics of suevite components from two localities outside the Ries crater by fitting shape-fabric ellipsoids to measured shape-fabric ellipses and by applying high-resolution, X-ray–computed tomography to analyze the three-dimensional shape and orientation of the suevite particles. We show that the preferred orientation of long axes of elongate particles is disposed either radially or concentrically with respect to the crater center. Our observations indicate that suevite material was not only derived from an ejecta plume, but was transported by lateral flow under viscous conditions upon fallback. This flow regime resembles that known from pyroclastic flows. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

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