The Sa'al volcano-sedimentary complex (Sinai, Egypt): A latest Mesoproterozoic volcanic arc in the northern Arabian Nubian Shield

Abstract

Research Article| May 01, 2012 The Sa'al volcano-sedimentary complex (Sinai, Egypt): A latest Mesoproterozoic volcanic arc in the northern Arabian Nubian Shield Yaron Be'eri-Shlevin; Yaron Be'eri-Shlevin * 1Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm SE-10405, Sweden2Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem 91904, Israel *E-mail: [e-mail]. Search for other works by this author on: GSW Google Scholar Moshe Eyal; Moshe Eyal 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel Search for other works by this author on: GSW Google Scholar Yehuda Eyal; Yehuda Eyal 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel Search for other works by this author on: GSW Google Scholar Martin J. Whitehouse; Martin J. Whitehouse 1Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm SE-10405, Sweden Search for other works by this author on: GSW Google Scholar Boris Litvinovsky Boris Litvinovsky 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel Search for other works by this author on: GSW Google Scholar Author and Article Information Yaron Be'eri-Shlevin * 1Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm SE-10405, Sweden2Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem 91904, Israel Moshe Eyal 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel Yehuda Eyal 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel Martin J. Whitehouse 1Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm SE-10405, Sweden Boris Litvinovsky 3Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel *E-mail: [e-mail]. Publisher: Geological Society of America Received: 31 Aug 2011 Revision Received: 23 Nov 2011 Accepted: 05 Dec 2011 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2012 Geological Society of America Geology (2012) 40 (5): 403–406. https://doi.org/10.1130/G32788.1 Article history Received: 31 Aug 2011 Revision Received: 23 Nov 2011 Accepted: 05 Dec 2011 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 Yaron Be'eri-Shlevin, Moshe Eyal, Yehuda Eyal, Martin J. Whitehouse, Boris Litvinovsky; The Sa'al volcano-sedimentary complex (Sinai, Egypt): A latest Mesoproterozoic volcanic arc in the northern Arabian Nubian Shield. Geology 2012;; 40 (5): 403–406. doi: https://doi.org/10.1130/G32788.1 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 New zircon U-Pb age data and geochemistry for the Sa'al metamorphic complex (SMC) in Sinai (Egypt) provide the first robust evidence of latest Mesoproterozoic island arc rocks at the northernmost Arabian-Nubian Shield, possibly indicating that formation of the shield commenced prior to 870 Ma. An older series of calc-alkaline volcanic and intrusive rocks yielded ages of ca. 1.03–1.02 Ga. Zircon xenocrysts within these rocks attest to arc magmatism predating the SMC by ∼80 m.y., as well as the minor contribution of Paleoproterozoic crust. Detrital zircons of the SMC pelites exhibit textural and U-Pb age patterns supporting their derivation from the volcanic rocks as arc detritus. A ca. 820 Ma gneissic pluton intruding the SMC indicates that by Cryogenian time, the SMC was already incorporated within the evolving Arabian-Nubian Shield. The 1.0–1.1 Ga SMC rocks provide a possible connection between latest Mesoproterozoic ocean closure during the assembly of Rodinia and the later buildup of Gondwana. There is growing indication, including the findings of this study, that 1.0–1.1 Ga crust composed a more significant component in northernmost Gondwana than hitherto recognized. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.