Le manteau supérieur à l'aplomb de la plaine de Kumba (ligne du Cameroun), d'après les enclaves de péridotites à spinelles dans les laves basaltiques

Translated title of the contribution: The upper mantle beneath the Kumba Plain (Cameroon Line), documented by spinel peridotites from basaltic lavas

Merlin Isidore Teitchou, Michel Grégoire*, Céline Dantas, Félix M. Tchoua

*Corresponding author for this work

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Basaltic lavas of the Kumba Plain contain mantle-spinel peridotite xenoliths. Mineralogical characteristics, together with major and trace element compositions, both in bulk rocks and clinopyroxenes, point out that the upper mantle beneath the Kumba volcanic plain has an essentially lherzolitic composition. This mantle is fertile or only affected by a very low degree of partial melting and cryptic metasomatism. The Kumba upper mantle appears to be homogeneous and very different from the other mantle peridotite occurrences from the Cameroon Line, especially those from the upper mantle beneath the Nyos volcanic plain.

Original languageFrench
Pages (from-to)101-109
Number of pages9
JournalComptes Rendus - Geoscience
Volume339
Issue number2
DOIs
Publication statusPublished - Feb 2007
Externally publishedYes

Keywords

  • Cameroon Line
  • Metasomatism
  • Partial melting
  • Peridotite
  • Upper mantle
  • Xenolith

Fingerprint Dive into the research topics of 'The upper mantle beneath the Kumba Plain (Cameroon Line), documented by spinel peridotites from basaltic lavas'. Together they form a unique fingerprint.

  • Cite this