Research Article| May 01, 2016 Subslab mantle of African provenance infiltrating the Aegean mantle wedge Martijn Klaver; Martijn Klaver Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands *Current address: Bristol Isotope Group, School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK; E-mail: martijn.klaver@bristol.ac.uk. Search for other works by this author on: GSW Google Scholar Gareth R. Davies; Gareth R. Davies Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands Search for other works by this author on: GSW Google Scholar Pieter Z. Vroon Pieter Z. Vroon Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands Search for other works by this author on: GSW Google Scholar Author and Article Information Martijn Klaver *Current address: Bristol Isotope Group, School of Earth Sciences, University of Bristol, Wills Memorial Building, Queens Road, Bristol BS8 1RJ, UK; E-mail: martijn.klaver@bristol.ac.uk. Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands Gareth R. Davies Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands Pieter Z. Vroon Department of Geology and Geochemistry, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081HV Amsterdam, Netherlands Publisher: Geological Society of America Received: 21 Dec 2015 Revision Received: 21 Mar 2016 Accepted: 21 Mar 2016 First Online: 09 Mar 2017 Online Issn: 1943-2682 Print Issn: 0091-7613 © 2016 Geological Society of America Geology (2016) 44 (5): 367–370. https://doi.org/10.1130/G37627.1 Article history Received: 21 Dec 2015 Revision Received: 21 Mar 2016 Accepted: 21 Mar 2016 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 Martijn Klaver, Gareth R. Davies, Pieter Z. Vroon; Subslab mantle of African provenance infiltrating the Aegean mantle wedge. Geology 2016;; 44 (5): 367–370. doi: https://doi.org/10.1130/G37627.1 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 presence of a tear in the subducting African slab has a strong effect on Neogene magmatism in western Turkey, but its influence on volcanism in the Quaternary Aegean arc to the west is unknown. In order to investigate to what extent arc volcanism can be affected by slab-parallel mantle flow from a slab window, we present new trace element and Nd-Pb isotope data for Nisyros and Santorini volcanoes. Trace element modeling allows quantification of the infiltration of trace element–enriched mantle of subslab provenance through the slab tear into the depleted Aegean mantle wedge. Primitive Nisyros magmas record melting of a mixed source that contains as much as 10% of the enriched, subslab mantle component, and a contribution of this component can be traced as far west as Santorini, ∼250 km away from the slab tear. We conclude that trace element and Nd-Pb isotope variations between Nisyros and Santorini do not require along-arc variations in subducting sediment composition, but reflect the heterogeneous nature of the Aegean mantle wedge related to infiltration of subslab mantle through the slab tear. Our geochemical evidence is in excellent agreement with predictions made on the basis of mantle tomography and anisotropy that indicate toroidal mantle flow around the edge of the Aegean slab. This implies that suction related to slab rollback can lead to the infiltration of subslab mantle material and slab-parallel mantle flow, thus potentially strongly influencing arc volcanism, processes that perhaps need greater assessment in other arc systems. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.