Le complexe basique-ultrabasique du Kakoulima (Guinee-Conakry)

une intrusion tholeiitique stratifiee liee au rifting de l'Atlantique central

Translated title of the contribution: The mafic-ultramafic complex of Kakoulima (Guinea-Conakry): a tholeiitic layered intrusion related to the central Atlantic rifting

D. Diallo, H. Bertrand, B. Azambre, M. Gregoire, J. Caseiro

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The Kakoulima complex is a tholeiitic layered intrusion more than 1000 m thick, formed at the base by dunites and wehrlites topped by gabbros, mainly noritic. The small range of cryptic layering and the vertical geochemical evolution result from the emplacement of a cumulative pile, the differentiated liquids being restricted to scarce marginal dolerites. The relations with the doleritic sills of Western Guinea and the Central Atlantic rifting are discussed. There is an abridged English version. -English summary

Original languageFrench
Pages (from-to)937-943
Number of pages7
JournalComptes Rendus - Academie des Sciences, Serie II
Volume314
Issue number9
Publication statusPublished - 1992

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