SEDIMENTOLOGY AND STRATIGRAPHY OF ALBIAN TO TURONIAN SUCCESSIONS AROUND THE NORTHERN KEANA ANTICLINE, MIDDLE BENUE TROUGH, NIGERIA

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dc.contributor.authorFAJULUGBE, Tunji Adeoluwa
dc.date.accessioned2017-01-24T11:23:46Z
dc.date.available2017-01-24T11:23:46Z
dc.date.issued2016-03
dc.descriptionA THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF A MASTER OF SCIENCE IN GEOLOGY (STRATIGRAPHY AND PALEONTOLOGY) DEPARTMENT OF GEOLOGY, FACULTY OF SCIENCE, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractThe study area isunderlain by the Uomba Formation, Awe Formation and the Keana Sandstone which all shows variations in constituent rock units to others elsewhere in the Middle Benue Trough. The Uomba Formation is made up of alternating sequence of fissile shales, mudstones and micaceous siltstones; the Awe Formation consisting of alternating sequence of arkosic fine grained sandstones, siltstones and mudstone series while the Keana Sandstone consists of massive, indurated, cross-bedded, medium to very coarse sometimes conglomeratic, gritty, sub-arkosic sandstones. Petrographic analysis shows that the sediments of the Awe Formation are moderately well sorted, chemically immature arkoses, quartz-arenites and feldspathic greywackeswith the presence of glauconite indicating a marine origin for the sediments while Keana Sandstone sediments are mainly sub-arkose and are also chemically immature. Sieve analysisshows that sediments of Keana Sandstone are generally medium to coarse grained, poorly sorted and are mainly river sands deposited in a fluvial setting in a moderate to high energy depositional environment which is closer to the source. Sedimentary structures such as faults, joints, quartz veins and mineralized hydrothermal veins were also observed in the study area and are believed to have resulted from the tectonic activities that affected parts of the Middle Benue Trough, in particular the study area.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/8499
dc.language.isoenen_US
dc.subjectSEDIMENTOLOGY,en_US
dc.subjectSTRATIGRAPHY,en_US
dc.subjectALBIAN,en_US
dc.subjectTURONIAN SUCCESSIONS,en_US
dc.subjectNORTHERN KEANA ANTICLINE,en_US
dc.subjectBENUE,en_US
dc.titleSEDIMENTOLOGY AND STRATIGRAPHY OF ALBIAN TO TURONIAN SUCCESSIONS AROUND THE NORTHERN KEANA ANTICLINE, MIDDLE BENUE TROUGH, NIGERIAen_US
dc.typeThesisen_US
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