Climatic cycles during a Neoproterozoic “snowball” glacial epoch

Research Article| April 01, 2007 Climatic cycles during a Neoproterozoic "snowball" glacial epoch Ruben Rieu; Ruben Rieu 1Repsol YPF, Exploration & Production, C/Orense 34, 28020 Madrid, Spain Search for other works by this author on: GSW Google Scholar Philip A. Allen; Philip A. Allen 2Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK Search for other works by this author on: GSW Google Scholar Michael Plötze; Michael Plötze 3Institute for Geotechnical Engineering, ETH-Zürich, Schafmattstrasse 6, CH-8093 Zürich, Switzerland Search for other works by this author on: GSW Google Scholar Thomas Pettke Thomas Pettke 4Institute for Geological Sciences, University of Berne, Baltzerstrasse 1-3, CH-3012 Bern, Switzerland Search for other works by this author on: GSW Google Scholar Author and Article Information Ruben Rieu 1Repsol YPF, Exploration & Production, C/Orense 34, 28020 Madrid, Spain Philip A. Allen 2Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK Michael Plötze 3Institute for Geotechnical Engineering, ETH-Zürich, Schafmattstrasse 6, CH-8093 Zürich, Switzerland Thomas Pettke 4Institute for Geological Sciences, University of Berne, Baltzerstrasse 1-3, CH-3012 Bern, Switzerland Publisher: Geological Society of America Received: 27 Sep 2006 Revision Received: 24 Oct 2006 Accepted: 27 Oct 2006 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2007) 35 (4): 299–302. https://doi.org/10.1130/G23400A.1 Article history Received: 27 Sep 2006 Revision Received: 24 Oct 2006 Accepted: 27 Oct 2006 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Ruben Rieu, Philip A. Allen, Michael Plötze, Thomas Pettke; Climatic cycles during a Neoproterozoic "snowball" glacial epoch. Geology 2007;; 35 (4): 299–302. doi: https://doi.org/10.1130/G23400A.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 profound glaciations of the Neoproterozoic Cryogenian period (ca. 850–544 Ma) represent an extreme climatic mode when, it is claimed, Earth was fully or almost completely covered with ice for millions of years. We show that the geochemistry and mineralogy of fine-grained Neoproterozoic sedimentary rocks in Oman are best explained by climatic oscillations that drove variations in the intensity of chemical weathering on contemporary land surfaces. The cold climate modes of the Cryogenian were therefore cyclical, punctuated with well-defined warm-humid interglacial periods. The hydrological cycle and the routing of sediment were active throughout the glacial epoch, which requires substantial open ocean water. This reconstruction represents a significantly different target for numerical climate models at this critical time in the evolution of Earth's biosphere. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.