Facies analysis of the Bida sandstone formation around Kajita, Nupe Basin, Nigeria.
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Date
1996
Authors
Olaniyan, O
Olobaniyi, S.B
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of African Earth Sciences
Abstract
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.
Description
Keywords
facies , pebbly , claystones , conglomerate , cluster
Citation
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.