November 2010
Low grade metamorphosed sandstone-type uranium deposit, Wadi Sikait, South Eastern Desert, Egypt
Wadi Sikait (WNW-ESE) is one of the most famous emerald sites in the world, since Pharonic times. The exposed rocks are ophiolitic mélange (consists of mafic-ultramafic fragments set in metapelites matrix), metamorphosed sandstones, gabbros, granites and post-granite dykes (lamprophyres) and veins (quartz). The metamorphosed sandstone (MSS) rocks (vary from greywacke to arkosic in composition) outcrop...
November 2010
Synkinematic ferro-potassic magmatism from the Mekwene-Njimafofire Foumban Massif, along the Foumban-Banyo shear zone in central domain of Cameroon Pan-African fold belt
The ferriferous high-K calc-alkaline intrusive of the Mekwene-Njimafofire Foumban Massif, Central Cameroon, were synkinematically emplaced in a sinistral strike-slip shear zone of Pan-African age. The rock sequences consist of orthogneisses with abundant coarse- to medium-grained quartz monzodiorite, medium- to fine-grained quartz monzonite, granodiorite, and fine-grained biotite granite composition and cover a range of...
November 2010
Existence of “late continental†deposits in the Mbere and Djerem sedimentary basins (North Cameroon): Palynologic and stratigraphic evidence
Current palynologic and stratigraphic data presented in this paper, show the existence of Upper Tertiary to Lower Quaternary deposits in the Mbere and Djerem basins. The upper part, so called “Late Continental” deposits encounters different palynomorphs with angiosperms (Gramineae, Chenopodiaceae, Malvaceae and Compositeae), spores, fungi, gymnosperm and freshwater algae, which are of Late...
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