Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany)

Abstract

Research Article| November 01, 2007 Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany) Markus Mohr; Markus Mohr 1Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany Search for other works by this author on: GSW Google Scholar John K. Warren; John K. Warren 2Shell Chair in Carbonate Studies, Sultan Qaboos University, Muscat, Oman Search for other works by this author on: GSW Google Scholar Peter A. Kukla; Peter A. Kukla 3Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany Search for other works by this author on: GSW Google Scholar Janos L. Urai; Janos L. Urai 3Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany Search for other works by this author on: GSW Google Scholar Anton Irmen Anton Irmen 4Gaz de France Produktion Exploration Deutschland GmbH, Lingen (Ems), Germany Search for other works by this author on: GSW Google Scholar Author and Article Information Markus Mohr 1Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany John K. Warren 2Shell Chair in Carbonate Studies, Sultan Qaboos University, Muscat, Oman Peter A. Kukla 3Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany Janos L. Urai 3Geological Institute, RWTH Aachen University, Wüllnerstrasse 2, 52056 Aachen, Germany Anton Irmen 4Gaz de France Produktion Exploration Deutschland GmbH, Lingen (Ems), Germany Publisher: Geological Society of America Received: 20 Sep 2006 Revision Received: 08 Jun 2007 Accepted: 14 Jun 2007 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 The Geological Society of America, Inc. Geology (2007) 35 (11): 963–966. https://doi.org/10.1130/G23378A.1 Article history Received: 20 Sep 2006 Revision Received: 08 Jun 2007 Accepted: 14 Jun 2007 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 Markus Mohr, John K. Warren, Peter A. Kukla, Janos L. Urai, Anton Irmen; Subsurface seismic record of salt glaciers in an extensional intracontinental setting (Late Triassic of northwestern Germany). Geology 2007;; 35 (11): 963–966. doi: https://doi.org/10.1130/G23378A.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 In the Northwest German Basin of Central Europe, Late Triassic interaction of normal faulting and salt diapirism during regional extension in subsalt basement locally initiated lateral flow of surface-piercing salt in namakiers (salt glaciers). Using seismic sections and variance attribute maps derived from high-resolution three-dimensional seismic data, we show that when a syndepositional fault cuts a near-emergent diapir crest, the caprock carapace was breached, opening a pathway for salt extrusion. The fault escarpment and the adjacent fault-induced depression allowed focused gravity-driven downward flow of salt across the land surface (a namakier) and its subsequent preservation and encasement in continental (arid redbed) sediments. Geodynamically there is an apparent distinction between the compressional setting of modern namakiers in the arid deserts of Iran and the fault-intersected extensional setting of stacked Keuper namakiers. Stacked namakiers preserved in thicknesses that are seismically resolvable are interpreted to indicate hyperarid conditions in Keuper time. The climate was typical of the highly continental Late Triassic Pangaean supercontinent as it rifted and sagged to form the incipient Atlantic Ocean. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.