untitled
<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd>
<responseDate>2018-01-15T18:42:08Z</responseDate>
<request identifier=oai:HAL:hal-00617768v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request>
<GetRecord>
<record>
<header>
<identifier>oai:HAL:hal-00617768v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:sdu</setSpec>
<setSpec>subject:sde</setSpec>
<setSpec>collection:CNRS</setSpec>
<setSpec>collection:SDE</setSpec>
<setSpec>collection:GM</setSpec>
<setSpec>collection:GIP-BE</setSpec>
<setSpec>collection:AGROPOLIS</setSpec>
<setSpec>collection:INSU</setSpec>
<setSpec>collection:B3ESTE</setSpec>
<setSpec>collection:UNIV-AG</setSpec>
<setSpec>collection:UNIV-MONTPELLIER</setSpec>
</header>
<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Coexistence of lawsonite-bearing eclogite and blueschist: phase equilibria modelling of Alpine Corsica metabasalts and petrological evolution of subducting slabs</title>
<creator>Vitale Brovarone, A.</creator>
<creator>Groppo, C.</creator>
<creator>Hetenyi, G.</creator>
<creator>Compagnoni, R.</creator>
<creator>Malavieille, Jacques</creator>
<contributor>Università degli Studi di Torino, Dip. di Scienze Mineralogiche e Petrologiche, Via Valperga Caluso, 35, 10125 Torino, Italy ; università degli studi di Torno</contributor>
<contributor>Dept. of Mineralogical and Petrological Sciences, University of Torino ; Université du Québec</contributor>
<contributor>Eidgenössische Technische Hochschule [Zürich] (ETH Zürich)</contributor>
<contributor>Dynamique de la Lithosphere ; 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>
<description>International audience</description>
<source>ISSN: 0263-4929</source>
<source>EISSN: 1525-1314</source>
<source>Journal of Metamorphic Geology</source>
<publisher>Wiley-Blackwell</publisher>
<identifier>hal-00617768</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00617768</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00617768</source>
<source>Journal of Metamorphic Geology, Wiley-Blackwell, 2011, 29 (5), pp.583-600. 〈10.1111/j.1525-1314.2011.00931.x〉</source>
<identifier>DOI : 10.1111/j.1525-1314.2011.00931.x</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1525-1314.2011.00931.x</relation>
<language>en</language>
<subject lang=en>Alpine Corsica</subject>
<subject lang=en>dehydration processes</subject>
<subject lang=en>lawsonite breakdown</subject>
<subject lang=en>lawsonite-eclogite</subject>
<subject lang=en>slab densification</subject>
<subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>In Alpine Corsica (France), deeply subducted metabasalts are well preserved as lawsonite-bearing eclogite (Law-Ecl), occurrence of which is restricted to similar to 10 localities worldwide. The Corsican Law-Ecl, consisting of omphacite + lawsonite + garnet + phengite + titanite, occurs as both single undeformed metabasaltic pillows surrounded by lawsonite blueschist (Law-Bs), and carbonate-bearing eclogitic veins. Law-Bs are found as variably deformed metabasaltic pillows locally cross-cut by eclogitic veins and consist of glaucophane + actinolite + lawsonite + garnet + phengite + titanite. Field evidence and microstructures reveal that both Law-Ecl and Law-Bs are stable at the metamorphic peak in the lawsonite-eclogite stability field. Isochemical phase diagrams (pseudosections) calculated for representative Law-Ecl and Law-Bs samples indicate that both lithologies equilibrated at the same conditions of similar to 520 +/- 20 degrees C and 2.3 +/- 0.1 GPa. Therefore, the coexistence at the same peak metamorphic conditions of Law-Ecl and Law-Bs implies that different portions of deeply subducted oceanic crust may store significantly different H2O contents, depending on bulk-rock chemical composition. In addition, thermodynamic modelling of phase equilibria indicates that the occurring progressive dehydration reactions, which are significantly depending on bulk-rock chemical composition, strongly influence rock densification and eclogite formation in subducting slabs.</description>
<date>2011</date>
</dc>
</metadata>
</record>
</GetRecord>
</OAI-PMH>
