Aperçu sur les amas sulfurés massifs des hercynides Marocaines
Identifieur interne : 000257 ( Maroc/Analysis ); précédent : 000256; suivant : 000258Aperçu sur les amas sulfurés massifs des hercynides Marocaines
Auteurs : A. J. Bernard [France] ; O. W. Maier [Maroc] ; A. Mellal [Maroc]Source :
- Mineralium Deposita [ 0026-4598 ] ; 1988-04-01.
Abstract
Abstract: Massive sulfide deposits located on Hercynian islets of northwestern Morocco exhibit four main characteristics: They are strata-bound massive pyrrhotite deposits mined for sulfur and/or base metals occasionally occurring as sulfides of workable grade. Volcanic rocks with which these massive sulfide orebodies are associated are scarce, although always present as acid flows of submarine emissions of either rhyolitic or more often quartz-keratophyric nature. Later on, basic plutonics intruded the pelitic country rocks. Stockworks underlying the massive sulfide orebodies are common, but not systematic. When present, they occur in siltite ± phyllite ± carbonate rocks at the wall of massive sulfide lenses. They consist of fissural disseminations transformed by epimetamorphic recrystallization and by one schistosity generally concordant with s0. Associated alterites and exhalites belong to three types, i.e., sericitite (or biotite-rich rock), chloritite, and/or chert (jasper). Generally well located in a back-arc basin environment characterized by a two-phase geological history, i.e., “extension and volcanism, compression and metamorphism”, these volcano-sedimentary deposits exhibit distal features with regard to the volcanism coeval with their sedimentation. They are mostly linked with strongly reducing environmental properties entailing pyrrhotite and/or magnetite syngenetic deposition, whatever the iron activity.
Url:
DOI: 10.1007/BF00206659
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001255
- to stream Istex, to step Curation: 000D67
- to stream Istex, to step Checkpoint: 000D70
- to stream Main, to step Merge: 001639
- to stream Main, to step Curation: 001584
- to stream Main, to step Exploration: 001584
- to stream Maroc, to step Extraction: 000257
Links to Exploration step
ISTEX:F02C7A7858487023835C544AFA96D14E94BC1D46Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="fr">Aperçu sur les amas sulfurés massifs des hercynides Marocaines</title><author><name sortKey="Bernard, A J" sort="Bernard, A J" uniqKey="Bernard A" first="A. J." last="Bernard">A. J. Bernard</name></author><author><name sortKey="Maier, O W" sort="Maier, O W" uniqKey="Maier O" first="O. W." last="Maier">O. W. Maier</name></author><author><name sortKey="Mellal, A" sort="Mellal, A" uniqKey="Mellal A" first="A." last="Mellal">A. Mellal</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:F02C7A7858487023835C544AFA96D14E94BC1D46</idno><date when="1988" year="1988">1988</date><idno type="doi">10.1007/BF00206659</idno><idno type="url">https://api.istex.fr/document/F02C7A7858487023835C544AFA96D14E94BC1D46/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001255</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001255</idno><idno type="wicri:Area/Istex/Curation">000D67</idno><idno type="wicri:Area/Istex/Checkpoint">000D70</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000D70</idno><idno type="wicri:doubleKey">0026-4598:1988:Bernard A:apercu:sur:les</idno><idno type="wicri:Area/Main/Merge">001639</idno><idno type="wicri:Area/Main/Curation">001584</idno><idno type="wicri:Area/Main/Exploration">001584</idno><idno type="wicri:Area/Maroc/Extraction">000257</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="fr">Aperçu sur les amas sulfurés massifs des hercynides Marocaines</title><author><name sortKey="Bernard, A J" sort="Bernard, A J" uniqKey="Bernard A" first="A. J." last="Bernard">A. J. Bernard</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Ecole Nationale Supérieure de Géologie, B.P. 452, 54001, Nancy Cedex 01</wicri:regionArea><placeName><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName></affiliation></author><author><name sortKey="Maier, O W" sort="Maier, O W" uniqKey="Maier O" first="O. W." last="Maier">O. W. Maier</name><affiliation wicri:level="3"><country xml:lang="fr">Maroc</country><wicri:regionArea>Bureau de Recherches et de Participations Minières, 5-7 Charia Moulay El Hassan, Rabat</wicri:regionArea><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation></author><author><name sortKey="Mellal, A" sort="Mellal, A" uniqKey="Mellal A" first="A." last="Mellal">A. Mellal</name><affiliation wicri:level="3"><country xml:lang="fr">Maroc</country><wicri:regionArea>Bureau de Recherches et de Participations Minières, 5-7 Charia Moulay El Hassan, Rabat</wicri:regionArea><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Mineralium Deposita</title><title level="j" type="sub">International Journal of Geology, Mineralogy and Geochemistry of Mineral Deposits</title><title level="j" type="abbrev">Mineral. Deposita</title><idno type="ISSN">0026-4598</idno><idno type="eISSN">1432-1866</idno><imprint><publisher>Springer-Verlag</publisher><pubPlace>Berlin/Heidelberg</pubPlace><date type="published" when="1988-04-01">1988-04-01</date><biblScope unit="volume">23</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="104">104</biblScope><biblScope unit="page" to="114">114</biblScope></imprint><idno type="ISSN">0026-4598</idno></series><idno type="istex">F02C7A7858487023835C544AFA96D14E94BC1D46</idno><idno type="DOI">10.1007/BF00206659</idno><idno type="ArticleID">BF00206659</idno><idno type="ArticleID">Art7</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0026-4598</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="fr">fr</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Massive sulfide deposits located on Hercynian islets of northwestern Morocco exhibit four main characteristics: They are strata-bound massive pyrrhotite deposits mined for sulfur and/or base metals occasionally occurring as sulfides of workable grade. Volcanic rocks with which these massive sulfide orebodies are associated are scarce, although always present as acid flows of submarine emissions of either rhyolitic or more often quartz-keratophyric nature. Later on, basic plutonics intruded the pelitic country rocks. Stockworks underlying the massive sulfide orebodies are common, but not systematic. When present, they occur in siltite ± phyllite ± carbonate rocks at the wall of massive sulfide lenses. They consist of fissural disseminations transformed by epimetamorphic recrystallization and by one schistosity generally concordant with s0. Associated alterites and exhalites belong to three types, i.e., sericitite (or biotite-rich rock), chloritite, and/or chert (jasper). Generally well located in a back-arc basin environment characterized by a two-phase geological history, i.e., “extension and volcanism, compression and metamorphism”, these volcano-sedimentary deposits exhibit distal features with regard to the volcanism coeval with their sedimentation. They are mostly linked with strongly reducing environmental properties entailing pyrrhotite and/or magnetite syngenetic deposition, whatever the iron activity.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Grand Est</li><li>Lorraine (région)</li><li>Rabat-Salé-Kénitra</li></region><settlement><li>Nancy</li><li>Rabat</li></settlement></list><tree><country name="France"><region name="Grand Est"><name sortKey="Bernard, A J" sort="Bernard, A J" uniqKey="Bernard A" first="A. J." last="Bernard">A. J. Bernard</name></region></country><country name="Maroc"><region name="Rabat-Salé-Kénitra"><name sortKey="Maier, O W" sort="Maier, O W" uniqKey="Maier O" first="O. W." last="Maier">O. W. Maier</name></region><name sortKey="Mellal, A" sort="Mellal, A" uniqKey="Mellal A" first="A." last="Mellal">A. Mellal</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/CobaltMaghrebV1/Data/Maroc/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000257 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Maroc/Analysis/biblio.hfd -nk 000257 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Terre
|area= CobaltMaghrebV1
|flux= Maroc
|étape= Analysis
|type= RBID
|clé= ISTEX:F02C7A7858487023835C544AFA96D14E94BC1D46
|texte= Aperçu sur les amas sulfurés massifs des hercynides Marocaines
}}
| This area was generated with Dilib version V0.6.32. |  |