Asian Journal of Geological Research

Petrography and Provenance of Eze-Aku Sandstones in Afikpo Basin, Southeastern Benue Trough

Kiamuke Itiowe *

Department of Earth Sciences, Arthur Jarvis University, Akpabuyo, Cross River State, Nigeria.

Minapuye Isaac Odigi

Department of Geology, University of Port Harcourt, Port Harcourt City, Rivers State, Nigeria.

Biokpo Kingson Kurah

Department of Geology, University of Port Harcourt, Port Harcourt City, Rivers State, Nigeria.

Bariborve Kpegeol

Department of Geology, University of Port Harcourt, Port Harcourt City, Rivers State, Nigeria.

*Author to whom correspondence should be addressed.

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Abstract

Petrographic study of the Eze-Aku sandstones exposed within the Afikpo basin were analysed to determine the petrography, provenance and tectonic setting of the area. Petrographic studies showed that the Eze-Aku sandstones were predominantly quartz, feldspar and lithic fragments. The QFL triangular plot shows that the Eze-Aku sandstones are mainly sub-arkoses with subordinate amount of arkoses and quartz arenites. The ternary plot of the provenance category showed that the Eze-Aku sandstones were plotted within the basement uplift continental block, indicating that the sandstones could have been a product of high relief and erosion from the Oban and Cameroon Massifs, located east part of the Abakaliki anticlinorium and Afikpo Basin.

Keywords: Eze-Aku, Quartz, Feldspar, Massif, Anticlinorium, Basin

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