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<datestamp>2018-01-11</datestamp>
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<title lang=en>Origin and significance of poikilitic and mosaic peridotite xenoliths in the western Pannonian Basin: geochemical and petrological evidences</title>
<creator>Embey-isztin, Antal</creator>
<creator>Dobosi, Gabor</creator>
<creator>Bodinier, Jean-Louis</creator>
<creator>Bosch, Delphine</creator>
<creator>Jenner, G. a.</creator>
<creator>Pourtales, Simone</creator>
<creator>Bruguier, Olivier</creator>
<contributor>Department of Mineralogy and Petrology, Hungarian Natural History Museum, Budapest</contributor>
<contributor>Hungarian Academy of Sciences [Budapest]</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>Manteau et Interfaces ; 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) - 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>Memorial University of Newfoundland [St. John's]</contributor>
<description>International audience</description>
<source>ISSN: 0010-7999</source>
<source>EISSN: 1432-0967</source>
<source>Contributions to Mineralogy and Petrology</source>
<publisher>Springer Verlag (Germany)</publisher>
<publisher>Springer Verlag</publisher>
<identifier>hal-01107421</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01107421</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01107421</source>
<source>Contributions to Mineralogy and Petrology, Springer Verlag, 2014, 168 (3), pp.1054. 〈10.1007/s00410-014-1054-y〉</source>
<identifier>DOI : 10.1007/s00410-014-1054-y</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s00410-014-1054-y</relation>
<language>en</language>
<subject lang=en>Pannonian basin</subject>
<subject lang=en>Melt/rock interaction</subject>
<subject lang=en>Xenolith</subject>
<subject lang=en>Peridotite</subject>
<subject lang=en>Poikilitic</subject>
<subject>[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Peridotite xenoliths erupted by alkali basaltic volcanoes in the western Pannonian Basin can be divided into two fundamentally contrasting groups. Geochemical characteristics of the abundant protogranular, porphyroclastic and equigranular nodules suggest that these samples originate from an old consolidated and moderately depleted lithospheric mantle domain. In contrast, the geochemical features of the worldwide rare, but in the Pannonian Basin relatively abundant, poikilitic xenoliths attest to a more complex evolution. It has been argued that the origin of the peculiar texture and chemistry may be intimately linked to melt/rock reactions at successively decreasing liquid volumes in a porous melt flow system. The most likely site where such reactions can take place is the asthenosphere-lithosphere boundary. In this context, poikilitic xenoliths may provide petrological and geochemical evidence for reactions between magmatic liquids issued from the uprising asthenosphere and the solid mantle rocks of the lithosphere. These reactions are important agents of the thermal erosion of the lithosphere; thus, they could have considerably contributed to the thinning of the lithosphere in the Pannonian region. We suggest that in the Pannonian Basin, there could be a strong relation between the unusual abundance of poikilitic mantle xenoliths and the strongly eroded lithosphere.</description>
<date>2014-09</date>
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