6533b7dafe1ef96bd126f490
RESEARCH PRODUCT
Sedimentary processes in the Carnot Formation (Central African Republic) related to the palaeogeographic framework of Central Africa
Jacques LangClaude Censiersubject
Sedimentary depositional environmentPaleontologyProvenancePrecambrianHeavy mineralStratigraphyClastic rockFaciesGeologySedimentary rockGeologyCretaceousdescription
Abstract The depositional environment, provenance and processes of emplacement of the detrital material of the Mesozoic Carnot Formation are defined, by bedding and sedimentological analysis of its main facies, and are reconstructed within the palaeogeographic framework of Central Africa. The clastic material was laid down between probably the Albian and the end of the Cretaceous, in a NNW-oriented braided stream fluvial system that drained into the Doba Trough (Chad) and probably also into the Touboro Basin (Cameroon). The material was derived from weathering of the underlying Devonian–Carboniferous Mambere Glacial Formation and of the Precambrian schist–quartzite complex located to the south of the Carnot Formation. These results provide useful indications as to the provenance of diamonds mined in the southwest Central African Republic.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-08-01 | Sedimentary Geology |