Geochronology of sedimentary and metasedimentary Precambrian rocks of the West African craton
Identifieur interne : 000518 ( France/Analysis ); précédent : 000517; suivant : 000519Geochronology of sedimentary and metasedimentary Precambrian rocks of the West African craton
Auteurs : Norbert Clauer [France] ; Renaud Caby [France] ; Daniel Jeannette [France] ; Roland Trompette [France, Brésil]Source :
- Precambrian Research [ 0301-9268 ] ; 1982.
Abstract
This contribution summarizes current knowledge of the geochronology of the Upper Proterozoic sedimentary rocks covering the West African craton. This was done by using direct dating methods. Correlations between the northern edge of the Tindouf basin and the northern and southern part of the Taoudeni basin, as well as the Volta basin, are proposed. An important depositional lack over almost the entire craton is confirmed between 1.7 Ga, which represents the time of the latest Eburnean activities or cooling effects, and about 1.0 Ga which is the start of the general Upper Proterozoic sedimentation. This lack is remarkable as the other cratons from Gondwana continent are covered by Middle Proterozoic sediments. The Upper Proterozoic sedimentation on the West African craton may be divided into a basal, mainly sandstone period (ca. 1000-900 Ma), a middle, mainly limestone period (ca. 900-750 Ma) and an upper, mainly siltstone period (ca. 750-650 Ma). Tectonic, volcanic and thermal activities in connection with the Pan-African orogeny are recorded only around the craton. They induced either sedimentation lacks in Morocco or sedimentation excesses in Hoggar. Unsolved problems such as the precise stratigraphic position of the uppermost Proterozoic tillitic episode and the correlation within the Moroccan Anti-Atlas are also raised.
Url:
DOI: 10.1016/0301-9268(82)90036-5
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000565
- to stream Istex, to step Curation: 000267
- to stream Istex, to step Checkpoint: 001020
- to stream Main, to step Merge: 001929
- to stream Main, to step Curation: 001867
- to stream Main, to step Exploration: 001867
- to stream France, to step Extraction: 000518
Links to Exploration step
ISTEX:63F1CA944A686D63BFC59053A5080CBB227E39F0Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Geochronology of sedimentary and metasedimentary Precambrian rocks of the West African craton</title><author><name sortKey="Clauer, Norbert" sort="Clauer, Norbert" uniqKey="Clauer N" first="Norbert" last="Clauer">Norbert Clauer</name></author><author><name sortKey="Caby, Renaud" sort="Caby, Renaud" uniqKey="Caby R" first="Renaud" last="Caby">Renaud Caby</name></author><author><name sortKey="Jeannette, Daniel" sort="Jeannette, Daniel" uniqKey="Jeannette D" first="Daniel" last="Jeannette">Daniel Jeannette</name></author><author><name sortKey="Trompette, Roland" sort="Trompette, Roland" uniqKey="Trompette R" first="Roland" last="Trompette">Roland Trompette</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:63F1CA944A686D63BFC59053A5080CBB227E39F0</idno><date when="1982" year="1982">1982</date><idno type="doi">10.1016/0301-9268(82)90036-5</idno><idno type="url">https://api.istex.fr/document/63F1CA944A686D63BFC59053A5080CBB227E39F0/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000565</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000565</idno><idno type="wicri:Area/Istex/Curation">000267</idno><idno type="wicri:Area/Istex/Checkpoint">001020</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001020</idno><idno type="wicri:doubleKey">0301-9268:1982:Clauer N:geochronology:of:sedimentary</idno><idno type="wicri:Area/Main/Merge">001929</idno><idno type="wicri:Area/Main/Curation">001867</idno><idno type="wicri:Area/Main/Exploration">001867</idno><idno type="wicri:Area/France/Extraction">000518</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Geochronology of sedimentary and metasedimentary Precambrian rocks of the West African craton</title><author><name sortKey="Clauer, Norbert" sort="Clauer, Norbert" uniqKey="Clauer N" first="Norbert" last="Clauer">Norbert Clauer</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Centre de Sédimentologie et Géochimie de la Surface (C.N.R.S.), Institut de Géologie</wicri:regionArea><wicri:noRegion>Institut de Géologie</wicri:noRegion><wicri:noRegion>Institut de Géologie</wicri:noRegion></affiliation></author><author><name sortKey="Caby, Renaud" sort="Caby, Renaud" uniqKey="Caby R" first="Renaud" last="Caby">Renaud Caby</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Centre Géologique et Géophysique (C.N.R.S.)</wicri:regionArea></affiliation></author><author><name sortKey="Jeannette, Daniel" sort="Jeannette, Daniel" uniqKey="Jeannette D" first="Daniel" last="Jeannette">Daniel Jeannette</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Centre de Sédimentologie et Géochimie de la Surface (C.N.R.S.), Institut de Géologie</wicri:regionArea><wicri:noRegion>Institut de Géologie</wicri:noRegion><wicri:noRegion>Institut de Géologie</wicri:noRegion></affiliation></author><author><name sortKey="Trompette, Roland" sort="Trompette, Roland" uniqKey="Trompette R" first="Roland" last="Trompette">Roland Trompette</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire de Géologie Dynamique</wicri:regionArea></affiliation><affiliation wicri:level="4"><country xml:lang="fr">Brésil</country><wicri:regionArea>∗ Present address: Instituto Geociências, Universidade de São Paulo, CP 20899 São Paulo</wicri:regionArea><orgName type="university">Université de São Paulo</orgName><placeName><settlement type="city">São Paulo</settlement><region type="state">État de São Paulo</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Precambrian Research</title><title level="j" type="abbrev">PRECAM</title><idno type="ISSN">0301-9268</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1982">1982</date><biblScope unit="volume">18</biblScope><biblScope unit="issue">1–2</biblScope><biblScope unit="page" from="53">53</biblScope><biblScope unit="page" to="71">71</biblScope></imprint><idno type="ISSN">0301-9268</idno></series><idno type="istex">63F1CA944A686D63BFC59053A5080CBB227E39F0</idno><idno type="DOI">10.1016/0301-9268(82)90036-5</idno><idno type="PII">0301-9268(82)90036-5</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0301-9268</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">This contribution summarizes current knowledge of the geochronology of the Upper Proterozoic sedimentary rocks covering the West African craton. This was done by using direct dating methods. Correlations between the northern edge of the Tindouf basin and the northern and southern part of the Taoudeni basin, as well as the Volta basin, are proposed. An important depositional lack over almost the entire craton is confirmed between 1.7 Ga, which represents the time of the latest Eburnean activities or cooling effects, and about 1.0 Ga which is the start of the general Upper Proterozoic sedimentation. This lack is remarkable as the other cratons from Gondwana continent are covered by Middle Proterozoic sediments. The Upper Proterozoic sedimentation on the West African craton may be divided into a basal, mainly sandstone period (ca. 1000-900 Ma), a middle, mainly limestone period (ca. 900-750 Ma) and an upper, mainly siltstone period (ca. 750-650 Ma). Tectonic, volcanic and thermal activities in connection with the Pan-African orogeny are recorded only around the craton. They induced either sedimentation lacks in Morocco or sedimentation excesses in Hoggar. Unsolved problems such as the precise stratigraphic position of the uppermost Proterozoic tillitic episode and the correlation within the Moroccan Anti-Atlas are also raised.</div></front></TEI><affiliations><list><country><li>Brésil</li><li>France</li></country><region><li>État de São Paulo</li></region><settlement><li>São Paulo</li></settlement><orgName><li>Université de São Paulo</li></orgName></list><tree><country name="France"><noRegion><name sortKey="Clauer, Norbert" sort="Clauer, Norbert" uniqKey="Clauer N" first="Norbert" last="Clauer">Norbert Clauer</name></noRegion><name sortKey="Caby, Renaud" sort="Caby, Renaud" uniqKey="Caby R" first="Renaud" last="Caby">Renaud Caby</name><name sortKey="Jeannette, Daniel" sort="Jeannette, Daniel" uniqKey="Jeannette D" first="Daniel" last="Jeannette">Daniel Jeannette</name><name sortKey="Trompette, Roland" sort="Trompette, Roland" uniqKey="Trompette R" first="Roland" last="Trompette">Roland Trompette</name></country><country name="Brésil"><region name="État de São Paulo"><name sortKey="Trompette, Roland" sort="Trompette, Roland" uniqKey="Trompette R" first="Roland" last="Trompette">Roland Trompette</name></region></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 000518 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/France/Analysis/biblio.hfd -nk 000518 | 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:63F1CA944A686D63BFC59053A5080CBB227E39F0
|texte= Geochronology of sedimentary and metasedimentary Precambrian rocks of the West African craton
}}
| This area was generated with Dilib version V0.6.32. |  |