Metasomatism of the shallow mantle beneath Yemen by the Afar plume—Implications for mantle plumes, flood volcanism, and intraplate volcanism

Research Article| May 01, 1998 Metasomatism of the shallow mantle beneath Yemen by the Afar plume—Implications for mantle plumes, flood volcanism, and intraplate volcanism Joel Baker; Joel Baker 1Department of Geology, Royal Holloway University of London, Egham, Surrey TW20 0EX, United Kingdom Search for other works by this author on: GSW Google Scholar Gilles Chazot; Gilles Chazot 1Department of Geology, Royal Holloway University of London, Egham, Surrey TW20 0EX, United Kingdom Search for other works by this author on: GSW Google Scholar Martin Menzies; Martin Menzies 1Department of Geology, Royal Holloway University of London, Egham, Surrey TW20 0EX, United Kingdom Search for other works by this author on: GSW Google Scholar Matthew Thirlwall Matthew Thirlwall 1Department of Geology, Royal Holloway University of London, Egham, Surrey TW20 0EX, United Kingdom Search for other works by this author on: GSW Google Scholar Geology (1998) 26 (5): 431–434. https://doi.org/10.1130/0091-7613(1998)0262.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Joel Baker, Gilles Chazot, Martin Menzies, Matthew Thirlwall; Metasomatism of the shallow mantle beneath Yemen by the Afar plume—Implications for mantle plumes, flood volcanism, and intraplate volcanism. Geology 1998;; 26 (5): 431–434. doi: https://doi.org/10.1130/0091-7613(1998)0262.3.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 Amphibole ± apatite–bearing lherzolite xenoliths from Yemen have Sr, Nd, and Pb isotope ratios that are the same as those of Oligocene flood and Quaternary intraplate basalts in Yemen, and also the Afar plume, which is genetically linked with this volcanism. The xenoliths have mineral, chemical, and isotopic characteristics consistent with enrichment of shallow mantle by carbonatitic melts and hydrous fluids from the Afar plume during or shortly after Oligocene flood volcanism. Separation of carbonatitic melts and hydrous fluids from mantle plumes may affect the composition of erupted flood basalts and is consistent with an origin of such plumes by recycling of oceanic lithosphere. Mantle plumes appear to have volatile fluxes that are large enough to affect solidus temperatures, both within plumes and the overlying lithospheric mantle, during the generation of large igneous provinces. The fertile lithosphere formed by plume-derived melts and fluids is an important potential source for intraplate volcanism that can be exploited by melting during later extension or erosional unloading of the lithosphere. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.