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    <titleInfo>
      <title>Les adakites d'Equateur : modèle préliminaire</title>
    </titleInfo>
    <name type="personnal">
      <namePart type="family">Monzier</namePart>
      <namePart type="given">Michel</namePart>
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    <name type="personnal">
      <namePart type="family">Robin</namePart>
      <namePart type="given">Claude</namePart>
      <role>
        <roleTerm type="text">auteur</roleTerm>
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    <name type="personnal">
      <namePart type="family">Hall</namePart>
      <namePart type="given">M.L.</namePart>
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        <roleTerm type="text">auteur</roleTerm>
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    <name type="personnal">
      <namePart type="family">Cotten</namePart>
      <namePart type="given">J.</namePart>
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    <name type="personnal">
      <namePart type="family">Mothes</namePart>
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    <name type="personnal">
      <namePart type="family">Eissen</namePart>
      <namePart type="given">Jean-Philippe</namePart>
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        <roleTerm type="text">auteur</roleTerm>
        <roleTerm type="code" authority="marcrelator">aut</roleTerm>
      </role>
      <affiliation>IRD</affiliation>
    </name>
    <name type="personnal">
      <namePart type="family">Samaniego</namePart>
      <namePart type="given">P.</namePart>
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    <language>
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    <abstract>L'ensemble des roches de 12 volcans quaternaires des Andes équatoriennes (286 analyses nouvelles) présente une signature adakitique, plus ou moins forte selon les appareils. Cette signature proviendrait de la fusion partielle de matériaux basaltiques métamorphisés de la croûte continentale (MORB et/ou basaltes d'arc) sous l'action des remontées magmatiques d'origine mantellique. Un modèle pétrogénétique préliminaire est proposé, qui explique les grands traits d'ensemble de la géochimie des volcanites équatoriennes. (Résumé d'auteur).</abstract>
    <targetAudience authority="marctarget">specialized</targetAudience>
    <subject authority="local">
      <topic>VOLCAN</topic>
      <topic>QUATERNAIRE</topic>
      <topic>BASALTE</topic>
      <topic>GEOCHIMIE</topic>
      <topic>MODELE</topic>
      <topic>MAGMATISME</topic>
    </subject>
    <subject>
      <topic>PETROGENETIQUE</topic>
    </subject>
    <subject authority="local">
      <geographic>EQUATEUR</geographic>
      <geographic>ANDES</geographic>
    </subject>
    <classification authority="local">064GEOCHI</classification>
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      <titleInfo>
        <title>Compte-rendus de l'Académie des Sciences.Série 2a : Sciences de la Terre et des Planètes</title>
      </titleInfo>
      <part>
        <detail type="volume">
          <number>324</number>
        </detail>
        <extent unit="pages">
          <list> 545-552</list>
        </extent>
      </part>
      <originInfo>
        <dateIssued>1997</dateIssued>
      </originInfo>
      <identifier type="issn">1250-8050</identifier>
    </relatedItem>
    <identifier type="uri">https://www.documentation.ird.fr/hor/fdi:010018124</identifier>
    <identifier type="issn">1250-8050</identifier>
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