New K-Ar ages of basalts from the Harrat Ash Shaam volcanic field in Jordan: Implications for the span and duration of the upper-mantle upwelling beneath the western Arabian plate

Abstract

Research Article| February 01, 2001 New K-Ar ages of basalts from the Harrat Ash Shaam volcanic field in Jordan: Implications for the span and duration of the upper-mantle upwelling beneath the western Arabian plate Shimon Ilani; Shimon Ilani 1Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Search for other works by this author on: GSW Google Scholar Yehudit Harlavan; Yehudit Harlavan 1Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Search for other works by this author on: GSW Google Scholar Khalid Tarawneh; Khalid Tarawneh 2Natural Resources Authority, P.O. Box 7, Amman 11118, Jordan Search for other works by this author on: GSW Google Scholar Ibrahim Rabba; Ibrahim Rabba 2Natural Resources Authority, P.O. Box 7, Amman 11118, Jordan Search for other works by this author on: GSW Google Scholar Ram Weinberger; Ram Weinberger 3Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Search for other works by this author on: GSW Google Scholar Khalil Ibrahim; Khalil Ibrahim 4Hashemite University of Jordan, P.O. Box 150459, Zarqa 13115, Jordan Search for other works by this author on: GSW Google Scholar Sergiu Peltz; Sergiu Peltz 5Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Search for other works by this author on: GSW Google Scholar Gideon Steinitz Gideon Steinitz 5Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Search for other works by this author on: GSW Google Scholar Author and Article Information Shimon Ilani 1Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Yehudit Harlavan 1Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Khalid Tarawneh 2Natural Resources Authority, P.O. Box 7, Amman 11118, Jordan Ibrahim Rabba 2Natural Resources Authority, P.O. Box 7, Amman 11118, Jordan Ram Weinberger 3Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Khalil Ibrahim 4Hashemite University of Jordan, P.O. Box 150459, Zarqa 13115, Jordan Sergiu Peltz 5Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Gideon Steinitz 5Geological Survey of Israel, 30 Malkhei Israel Street, Jerusalem 95501, Israel Publisher: Geological Society of America Received: 24 Jul 2000 Revision Received: 06 Nov 2000 Accepted: 07 Nov 2000 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2001) 29 (2): 171–174. https://doi.org/10.1130/0091-7613(2001)029<0171:NKAAOB>2.0.CO;2 Article history Received: 24 Jul 2000 Revision Received: 06 Nov 2000 Accepted: 07 Nov 2000 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Shimon Ilani, Yehudit Harlavan, Khalid Tarawneh, Ibrahim Rabba, Ram Weinberger, Khalil Ibrahim, Sergiu Peltz, Gideon Steinitz; New K-Ar ages of basalts from the Harrat Ash Shaam volcanic field in Jordan: Implications for the span and duration of the upper-mantle upwelling beneath the western Arabian plate. Geology 2001;; 29 (2): 171–174. doi: https://doi.org/10.1130/0091-7613(2001)029<0171:NKAAOB>2.0.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 The volcanism in the western Arabian plate extends from the Red Sea through the Harrat Ash Shaam system to western Syria, as far north as the Bitlis suture in the Taurides. The Harrat Ash Shaam volcanic system in Jordan consists of northwest-trending dikes and a volcanic field that together encompass a width of 220 km. In terms of width, direction, and age of the main volcanic phases, the system is similar to the Red Sea dike belt. About 130 new K-Ar age determinations show that the ages of the Harrat Ash Shaam system (dikes and flows) range from Oligocene to Quaternary. However, there is a distinct gap in the ages between ∼22 and 13 Ma. This gap coincides with an apparent decrease in volcanism in the Red Sea region from around 20 to 12 Ma. We interpret this 9 m.y. gap as a quiescent period interrupting the volcanic activity in the region and suggest that from ∼22 to 13 Ma, tectonic activity in the Arabian plate was mainly restricted to the Red Sea region. A renewal of volcanism along the western margins of the Arabian plate at 13 Ma was very likely associated with the sinistral movement along the north-trending Dead Sea transform. This renewal of volcanism and tectonic activity may reflect the emergence of upper-mantle upwelling beneath the western Arabian plate at that time. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.