THE FISSURAL NEOPROTEROZOIC VOLCANISM OF THE LOWER DJA, YOKADOUMA (CAMEROON) AND NOLA (RCA) SERIES GEOTECTONIC MEANING

Authors
VICAT JP POUCLET A NKOUMBOU C MOUANGUE AS
Citation
Jp. Vicat et al., THE FISSURAL NEOPROTEROZOIC VOLCANISM OF THE LOWER DJA, YOKADOUMA (CAMEROON) AND NOLA (RCA) SERIES GEOTECTONIC MEANING, Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes, 325(9), 1997, pp. 671-677
Citations number
18
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Sciences de la terre et des planetes → ACNP
ISSN journal
12518050
Volume
325
Issue
9
Year of publication
1997
Pages
671 - 677
Database
ISI
SICI code
1251-8050(1997)325:9<671:TFNVOT>2.0.ZU;2-5
Abstract
The basic intrusions in the lower Dja, Yokadouma and Nola Neoproterozo ic Series, around 1 Ga, display a continental tholeiitic composition. The magmas are generated from a spinel Iherzolite source sharing litho spheric and asthenospheric components, suggesting a lithospheric thinn ing. This magmatism has to be related to an extensional phase which fa vored the pre-Pan-African trough formation in the northern part of the Congo Craton.