Geochemistry of Precambrian ophiolites from Bou Azzer, Morocco
Identifieur interne : 000513 ( France/Analysis ); précédent : 000512; suivant : 000514Geochemistry of Precambrian ophiolites from Bou Azzer, Morocco
Auteurs : J. L. Bodinier [France] ; C. Dupuy [France] ; J. Dostal [Canada]Source :
- Contributions to Mineralogy and Petrology [ 0010-7999 ] ; 1984-08-01.
Abstract
Abstract: The Upper Proterozoic ophiolite complex of Bou Azzer, Morocco, includes ultramafic rocks, cumulate gabbros, sheeted dykes, pillow lavas and diorite-quartz diorite intrusions and an overlying volcano-sedimentary sequence. The gabbroic cumulates, basaltic flows and dykes have compositions similar to recent ocean-floor rocks (N- and/or T-type). Among other features, they have comparable light REE-depleted patterns and relations of Ti-Zr and La-Nb. Although fractional crystallization played an important role in the evolution of these rocks, the large variations in their chemical compositions require generation from a heterogeneous upper mantle source and/or by a dynamic partial melting process. Diorites, quartz diorites and the volcanic rocks of the overlying sequence are calc-alkaline, genetically unrelated to the tholeiitic suite and indicative of an island arc setting. A possible tectonic model for the ophiolite complex is a marginal basin just behind a still active island arc.
Url:
DOI: 10.1007/BF00371401
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000D11
- to stream Istex, to step Curation: 000879
- to stream Istex, to step Checkpoint: 000F59
- to stream Main, to step Merge: 001858
- to stream Main, to step Curation: 001798
- to stream Main, to step Exploration: 001798
- to stream France, to step Extraction: 000513
Links to Exploration step
ISTEX:616E536C1BCD9C7CCAAF579E93114D998603D6ABLe document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Geochemistry of Precambrian ophiolites from Bou Azzer, Morocco</title><author><name sortKey="Bodinier, J L" sort="Bodinier, J L" uniqKey="Bodinier J" first="J. L." last="Bodinier">J. L. Bodinier</name></author><author><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name></author><author><name sortKey="Dostal, J" sort="Dostal, J" uniqKey="Dostal J" first="J." last="Dostal">J. Dostal</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:616E536C1BCD9C7CCAAF579E93114D998603D6AB</idno><date when="1984" year="1984">1984</date><idno type="doi">10.1007/BF00371401</idno><idno type="url">https://api.istex.fr/document/616E536C1BCD9C7CCAAF579E93114D998603D6AB/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000D11</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000D11</idno><idno type="wicri:Area/Istex/Curation">000879</idno><idno type="wicri:Area/Istex/Checkpoint">000F59</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000F59</idno><idno type="wicri:doubleKey">0010-7999:1984:Bodinier J:geochemistry:of:precambrian</idno><idno type="wicri:Area/Main/Merge">001858</idno><idno type="wicri:Area/Main/Curation">001798</idno><idno type="wicri:Area/Main/Exploration">001798</idno><idno type="wicri:Area/France/Extraction">000513</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Geochemistry of Precambrian ophiolites from Bou Azzer, Morocco</title><author><name sortKey="Bodinier, J L" sort="Bodinier, J L" uniqKey="Bodinier J" first="J. L." last="Bodinier">J. L. Bodinier</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Centre Géologique et Géophysique, U.S.T.L., Place E. Bataillon, 34060, Montpellier</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Centre Géologique et Géophysique, U.S.T.L., Place E. Bataillon, 34060, Montpellier</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Dostal, J" sort="Dostal, J" uniqKey="Dostal J" first="J." last="Dostal">J. Dostal</name><affiliation wicri:level="1"><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Geology, Saint Mary's University, B3H 3C3, Halifax, Nova Scotia</wicri:regionArea><wicri:noRegion>Nova Scotia</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Contributions to Mineralogy and Petrology</title><title level="j" type="abbrev">Contr. Mineral. and Petrol.</title><idno type="ISSN">0010-7999</idno><idno type="eISSN">1432-0967</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1984-08-01">1984-08-01</date><biblScope unit="volume">87</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="43">43</biblScope><biblScope unit="page" to="50">50</biblScope></imprint><idno type="ISSN">0010-7999</idno></series><idno type="istex">616E536C1BCD9C7CCAAF579E93114D998603D6AB</idno><idno type="DOI">10.1007/BF00371401</idno><idno type="ArticleID">BF00371401</idno><idno type="ArticleID">Art5</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0010-7999</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: The Upper Proterozoic ophiolite complex of Bou Azzer, Morocco, includes ultramafic rocks, cumulate gabbros, sheeted dykes, pillow lavas and diorite-quartz diorite intrusions and an overlying volcano-sedimentary sequence. The gabbroic cumulates, basaltic flows and dykes have compositions similar to recent ocean-floor rocks (N- and/or T-type). Among other features, they have comparable light REE-depleted patterns and relations of Ti-Zr and La-Nb. Although fractional crystallization played an important role in the evolution of these rocks, the large variations in their chemical compositions require generation from a heterogeneous upper mantle source and/or by a dynamic partial melting process. Diorites, quartz diorites and the volcanic rocks of the overlying sequence are calc-alkaline, genetically unrelated to the tholeiitic suite and indicative of an island arc setting. A possible tectonic model for the ophiolite complex is a marginal basin just behind a still active island arc.</div></front></TEI><affiliations><list><country><li>Canada</li><li>France</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Montpellier</li></settlement></list><tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Bodinier, J L" sort="Bodinier, J L" uniqKey="Bodinier J" first="J. L." last="Bodinier">J. L. Bodinier</name></region><name sortKey="Dupuy, C" sort="Dupuy, C" uniqKey="Dupuy C" first="C." last="Dupuy">C. Dupuy</name></country><country name="Canada"><noRegion><name sortKey="Dostal, J" sort="Dostal, J" uniqKey="Dostal J" first="J." last="Dostal">J. Dostal</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/CobaltMaghrebV1/Data/France/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000513 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/France/Analysis/biblio.hfd -nk 000513 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= CobaltMaghrebV1
|flux= France
|étape= Analysis
|type= RBID
|clé= ISTEX:616E536C1BCD9C7CCAAF579E93114D998603D6AB
|texte= Geochemistry of Precambrian ophiolites from Bou Azzer, Morocco
}}
| This area was generated with Dilib version V0.6.32. |  |