Abstract
About 6,000m of alternating marine, paralic, and continental sediments of Cretaceous — Tertiary ages have been deposited in the Benue Trough. Conspicuous amongst these are the coal beds and coal-bearing strata, of which those of the Awgu Formation in the Middle Benue Trough have attained a rank of high to medium volatile bituminous coal stage. Maceral analysis on samples from the coal seams and some organic matter-rich interseam sediments obtained from four boreholes and two outcrop sections allows distinction of three petrographic facies which are related to the maceral associations, namely the vitrinite-fusinite coal facies, the trimaceritic coal facies and the shaly coal facies Vitrinite reflectance values measured on these samples generally increase with depth from 0.76 – 1.25%. At these values, usually large amounts of volatile matter are yielded in the form of methane, carbon dioxide and water as the primary products of progressive maturation and devolatifisation of humic organic matter.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
