Journal articles
Existence de dykes doléritiques anciens à composition de tholéiites continentales au sein de la province alcaline de la ligne du Cameroun. Implication sur le contexte géodynamique
Abstract : n the Adamawa Plateau (Northern Cameroon), doleritic dykes belong to a magmatic activity which predated the Cenozoic alkaline volcanism of the Cameroon Line. They have the chemical composition of continental tholeiites with Nb-Ta- and Ti-negative anomalies. This magmatism is interpreted as being derived from a sub-continental lithospheric source, which may have been contaminated during a former subduction event, linked to the Pan-African convergence. It is related to an early stage of continental break-up, which was contemporaneous or predated the Cretaceous tholeiitic magmatism of predominantly asthenospheric origin, which indicates a lithospheric thinning.
Cited literature [16 references]
https://hal-insu.archives-ouvertes.fr/hal-00089827
Contributor : Nathalie Pothier <>
Submitted on : Tuesday, March 5, 2013 - 5:06:09 PM
Last modification on : Friday, April 5, 2019 - 8:08:28 PM
Long-term archiving on: : Thursday, June 6, 2013 - 2:35:08 AM
Contributor : Nathalie Pothier <>
Submitted on : Tuesday, March 5, 2013 - 5:06:09 PM
Last modification on : Friday, April 5, 2019 - 8:08:28 PM
Long-term archiving on: : Thursday, June 6, 2013 - 2:35:08 AM
File
1-s2.0-S1251805001015269-main....
Publisher files allowed on an open archive