Facies analysis of the Bida sandstone formation around Kajita, Nupe Basin, Nigeria.
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Journal of African Earth Sciences
A cluster analysis program was performed on a fifty by six data matrix derived from a granulometric study of the Bida Sandstone Formation around Kajita, Nigeria. Six lithofacies were derived from extraction of clusters. These are conglomerates, coarse pebbly sandstones, pebbly sandstones, coarse-grained, medium-grained and fine-grained sandstones. The seventh facies, claystones, was characterised only on the basis of field observations because it was too fine for sieving. The facies occur in a succession of multistorey fining upwards sequences whose cyclothems are truncated in places. Each cyclothem represents coarse traction deposits in channels, and fine deposits in overbank areas respectively. They are interpreted as deposits of braided ephemeral streams.
facies , pebbly , claystones , conglomerate , cluster
Olaniyan, O., & Olobaniyi, S. B. (1996). Facies analysis of the Bida sandstone formation around Kajita, Nupe Basin, Nigeria. Journal of African Earth Sciences, 23(2), 253-256.