untitled
<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd>
<responseDate>2018-01-15T18:33:42Z</responseDate>
<request identifier=oai:HAL:hal-01054338v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request>
<GetRecord>
<record>
<header>
<identifier>oai:HAL:hal-01054338v1</identifier>
<datestamp>2018-01-11</datestamp>
<setSpec>type:ART</setSpec>
<setSpec>subject:sdu</setSpec>
<setSpec>subject:sde</setSpec>
<setSpec>collection:CNRS</setSpec>
<setSpec>collection:UNIV-PARIS7</setSpec>
<setSpec>collection:INSU</setSpec>
<setSpec>collection:SDE</setSpec>
<setSpec>collection:OMP-LMTG</setSpec>
<setSpec>collection:GM</setSpec>
<setSpec>collection:UPMC</setSpec>
<setSpec>collection:OMP</setSpec>
<setSpec>collection:GIP-BE</setSpec>
<setSpec>collection:AFRIQ</setSpec>
<setSpec>collection:OMP-GET</setSpec>
<setSpec>collection:UNIV-TLSE3</setSpec>
<setSpec>collection:AGROPOLIS</setSpec>
<setSpec>collection:IPGP</setSpec>
<setSpec>collection:USPC</setSpec>
<setSpec>collection:UNIV-AG</setSpec>
<setSpec>collection:B3ESTE</setSpec>
<setSpec>collection:UNIV-MONTPELLIER</setSpec>
</header>
<metadata><dc>
<publisher>HAL CCSD</publisher>
<title lang=en>Continental subduction recorded by Neoproterozoic eclogite and garnet amphibolites from Western Hoggar (Tassendjanet terrane, Tuareg Shield, Algeria)</title>
<creator>Berger, Julien</creator>
<creator>Ouzegane, Khadidja</creator>
<creator>Bendaoud, Abderrahmane</creator>
<creator>Liegeois, Jean-Paul</creator>
<creator>Kienast, Jean-Robert</creator>
<creator>Bruguier, Olivier</creator>
<creator>Caby, Renaud</creator>
<contributor>Géosciences Environnement Toulouse (GET) ; Institut de Recherche pour le Développement (IRD) - Université Paul Sabatier - Toulouse 3 (UPS) - Observatoire Midi-Pyrénées (OMP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB)</contributor>
<contributor>Royal Museum for Central Africa, Tervuren ; Université du Québec</contributor>
<contributor>Institut de Physique du Globe de Paris (IPGP) ; Université Pierre et Marie Curie - Paris 6 (UPMC) - Institut national des sciences de l'Univers (INSU - CNRS) - IPG PARIS - Université Paris Diderot - Paris 7 (UPD7) - Université de la Réunion (UR) - 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>
<description>International audience</description>
<source>ISSN: 0301-9268</source>
<source>Precambrian Research</source>
<publisher>Elsevier</publisher>
<identifier>hal-01054338</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01054338</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01054338</source>
<source>Precambrian Research, Elsevier, 2014, 247, pp.139-158. 〈10.1016/j.precamres.2014.04.002〉</source>
<identifier>DOI : 10.1016/j.precamres.2014.04.002</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.precamres.2014.04.002</relation>
<language>en</language>
<subject lang=en>Pan-African</subject>
<subject lang=en>Subduction</subject>
<subject lang=en>Eclogite</subject>
<subject lang=en>Rift Exhumation</subject>
<subject lang=en>U-Pb zircon dating</subject>
<subject>[SDU.STU.PE] Sciences of the Universe [physics]/Earth Sciences/Petrography</subject>
<subject>[SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>eoproterozoic eclogite and garnet amphibolites, representing retrogressed eclogites, from the Tassendjanet-Tidéridjaouine terrane in the Pan-African Western Hoggar (Tuareg shield, Southern Algeria) form lenses enclosed in 1.8 Ga subalkaline Paleoproterozoic orthogneisses. They lie along a major sinistral shear zone marking the boundary with the Archean/Paleoproterozoic granulitic In Ouzzal terrane and are associated with high-pressure metasediments. According to thermodynamic calculations, peak condition of the eclogitic stage is 650 °C, 20-22 kbar followed by post-peak heating and exhumation at 730 °C, 10-14 kbar and cooling to 610 °C, 7-10 kbar. Their major, trace-element and isotopic compositions are consistent with emplacement of former basalts in the shoulder of a 700-800 Ma continental rift that evolved to an oceanic basin. The eclogite and garnet amphibolites were thus part of the continental portion of a subducting slab that was pulled down by a denser oceanic lithosphere. Sheath and recumbent folds associated with the exhumation of HP units are verging toward the west, meaning that the former slab was dipping to the east. U-Pb zircon dating on metamorphic zircons bordering ilmenite and rutile in the eclogite gave an age of 623 ± 2 Ma, interpreted as the syn-collisional exhumation stage of the high-pressure unit. This event was rapidly followed by transpressional tectonics and abundant magmatism linked to the northward motion of the adjacent In Ouzzal terrane.</description>
<date>2014-07</date>
</dc>
</metadata>
</record>
</GetRecord>
</OAI-PMH>
