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<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>The alkaline intraplate volcanism of the Antalya nappes (Turkey): a Late Triassic remnant of the Neotethys</title>
<creator>Maury, René</creator>
<creator>Lapierre, Henriette</creator>
<creator>Bosch, Delphine</creator>
<creator>Marcoux, Jean</creator>
<creator>Krystyn, Leopold</creator>
<creator>Cotten, Joseph</creator>
<creator>Bussy, François</creator>
<creator>BRUNET, Pierre</creator>
<creator>Senebier, François</creator>
<contributor>Domaines Océaniques (LDO) ; Institut national des sciences de l'Univers (INSU - CNRS) - Université de Brest (UBO) - Observatoire des Sciences de l'Univers - Institut d'écologie et environnement - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire de Géodynamique des Chaines Alpines (LGCA) ; Observatoire des Sciences de l'Univers de Grenoble (OSUG) ; Université Joseph Fourier - Grenoble 1 (UJF) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Université Joseph Fourier - Grenoble 1 (UJF) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Institut des Sciences de la Terre (ISTerre) ; Université Joseph Fourier - Grenoble 1 (UJF) - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR) - Institut national des sciences de l'Univers (INSU - CNRS) - Institut de recherche pour le développement [IRD] : UR219 - PRES Université de Grenoble - Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]) - Centre National de la Recherche Scientifique (CNRS) - Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR) - Institut de recherche pour le développement [IRD] : UR219 - PRES Université de Grenoble - Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire de tectonique, mécanique de la lithosphère (LTML) ; IPG PARIS - Université Paris Diderot - Paris 7 (UPD7) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Institute of Paleontology ; University of Vienna [Vienna]</contributor>
<contributor>Institute of Mineralogy and Geochemistry ; University of Lausanne</contributor>
<contributor>Laboratoire des Mécanismes et Transfert en Géologie (LMTG) ; Université Paul Sabatier - Toulouse 3 (UPS) - Observatoire Midi-Pyrénées (OMP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>National audience</description>
<source>EISSN: 1777-5817</source>
<source>Bulletin de la Société Géologique de France</source>
<publisher>Société géologique de France</publisher>
<identifier>insu-00338829</identifier>
<identifier>https://hal-insu.archives-ouvertes.fr/insu-00338829</identifier>
<source>https://hal-insu.archives-ouvertes.fr/insu-00338829</source>
<source>Bulletin de la Société Géologique de France, Société géologique de France, 2008, 179 (4), pp.397-410. 〈10.2113/gssgfbull.179.4.397〉</source>
<identifier>DOI : 10.2113/gssgfbull.179.4.397</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.2113/gssgfbull.179.4.397</relation>
<language>en</language>
<subject lang=en>Alkali basalt</subject>
<subject lang=en>Intraplate volcanism</subject>
<subject lang=en>Triassic (Upper)</subject>
<subject lang=en>Neotethys</subject>
<subject lang=en>Turkey</subject>
<subject lang=en>Geochemistry</subject>
<subject>[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry</subject>
<subject>[SDU.STU.PE] Sciences of the Universe [physics]/Earth Sciences/Petrography</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Late Triassic submarine alkali basalts and hawaiites were collected from two superimposed tectonic slices belonging to the Kara Dere – Sayrun unit of the Middle Antalya nappes, southwestern Turkey. New determinations on conodont faunas allow to date this sequence to the Lower Carnian (Julian). The volcanic rocks show rather homogeneous compositions, with high TiO2 and relatively low MgO and Ni contents which suggest olivine fractionation. Their primitive mantle-normalised multi-elements plots show Nb and Ta enrichments relative to La, Pb negative anomalies and heavy rare earth element and Y depletions typical of intraplate ocean island basalts. These characteristics are consistent with the major and trace element compositions of their primary clinopyroxene phenocrysts, which do not show any feature ascribable to crustal contamination. The studied lavas display a restricted range of {varepsilon}Nd (+4.6 to +5.2) which falls within the range of ocean island basalts. Their initial (143Nd/144Nd)i ratios are too low to be explained by a simple mixing line between depleted MORB mantle (DMM) and HIMU components. Their Pb and Nd isotopic compositions plot along a mixing line between HIMU component and an enriched mantle, the composition of which could be the result of the addition of about 5 to 8% of an EM2 component (recycled marine sediments) to DMM. The lack of evidence for any continental crustal component in their genesis could be consistent with their emplacement in an intra-oceanic setting.</description>
<date>2008-07-25</date>
</dc>
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