The basin is grouped into the upper, middle, and lower benue trough. The mechanism of the formation of the trough dominated most of the early studies carried out in the area and, although, still controversial, an unstable rrf riftrift fault triple junction model leading to plate dilation and the opening of the gulf of guinea benkhelil. The coal samples used for the analyses were sourced from the maiganga coal mine. Stratigraphic evolution of the benue trough and its implications for the upper cretaceous paleogeography of west africa. Diagenesis and reservoir quality of cretaceous sandstones of. Afikpo is located in the southern benue trough, between the abakiliki anticlinorium running northeast and the cameroon line in the southeast. Idealized ns stratigraphic crosssection across the chad basin benue trough niger delta after obaje, 2009 this idea was supported by benkhelil 1982 who linked the evolution of the benue rift with major crustal and major sinistral shearing. Quarry in gongola basin of the upper benue trough, northeast. Stratigraphic evolution of the benue trough and its implications for the upper cretaceous paleogeography of west africa petters, s. Geochemistry of termite mounds in the sediment hosted. Of their three shallow boreholes, only the mona borehole was from the yola subbasin.
Chemistry of maiganga coal deposit, upper benue trough. Nigeria5 benue trough and the midafrican rift system oil. Benue trough is an important frontier basin in nigeria of interest in hydrocarbon exploration. The benue trough can be subdivided into lower, middle and upper parts figure 1 that were affected by santonian tectonic activity. Integrated well log and 2d seismic data interpretation to. Petroleum potentials of the nigerian benue trough and. Stratigraphic relationships in the upper benue trough are depicted in fig. The stratigraphic succession in the benue trough comprises essentia lly thick continental anjd deltaic sandstones, paralics sandstones, shales, and coal measures, and shallow epicontinental shales and lime stones murat 1972. Gongola basin, upper benue trough, north eastern nigeria. An attempt to revise the stratigraphy of the benue trough was presented by popoff et al. The benue trough is a major geological structure underlying a large part of nigeria and extending about 1,000 km northeast from the bight of benin to lake chad. Pdf abstract within the past few decades, much new data have been acquired on the stratigraphy of the benue trough on dating, correlation and. Microphytoplankton biozonation of late albian turonian. This paper is intended to raise critical questions on the existence of the yolde formation as a lithologic unit in the stratigraphy of the upper benue trough, n.
The benue trough has been considered part of the threearmed rift system which controlled the breakup. Petroleum prospectivity of cretaceous formations in the. The niger delta benue trough region is a 1,500 km long, 50150 km wide, intraplate northeastsouthwest tectonic megastructure filled with continental and marine sediments that range in age from. Umeji department of geology university of nigeria nsukka abstract within the past few decades, much new data have been acquired on the stratigraphy of the benue trough on dating, correlation and palaeoenvironments of deposition that necessitated reassessment of previous geological reports. Palynostratigraphy and age of the sequence penetrated by. The comprehensive reports of the geological and stratigraphic progressions in the benue trough are. Upper nile basin sudan trough chad, dobadoseo chari, and lullemmeden niger basins benue trough 15 stratigraphy 15 precambrian 19 paleozoic 19 mesozoic 21. Structure and evolution of the benue trough by professor. A bibliography of geological studies on the benue trough of nigeria.
The benue trough of nigeria formed as a result of series of tectonism and repetitive sedimentation in the cretaceous time when south america separated from africa. Geochemical investigation of surface water from the effect. Mar 01, 2021 these authors based their work on three shallow boreholes, and the nasara1 well in the upper benue trough. The sequence stratigraphic interpretations are useful in further deepening the knowledge of thesubsurface geology of the studiedwell in gongola sub basin, upper benue trough of nigeria. Tectonostratigraphic history of the keta basin, ghana wi. Hydrocarbon potential of cretaceous sediments in the lower. Biostratigraphy of upper cretaceous foraminifers of the. The third sedimentary cycle ranged from the upper turonian to the lower santonian. Diagenesis and reservoir quality of cretaceous sandstones. The geological map of the upper benue is shown in fig 2.
This succession is made up of albian arufu, uomba and gboko formations. The age of the sedimentary rocks in the benue trough ranges from albian to paleocene. Field study of the positive flower structures of the gombe. Chemical studies have been carried out on coal samples from maiganga coal mine, gombe formation, upper benue trough of nigeria with a view to determine theirchemical characteristics and possible utilization as coking coal or otherwise. Materials and methods kolmani river1 well, drilled in the gongola basin, northern benue trough. However, pioneering study of the abakaliki fold belt seems to be handicapped by the lack of core sections. Fig 2 geological map of benue trough modified from akande 1989 2. Diagram showing the stratigraphy of the upper benue trough obaje et al, 1999. Following midsantonian tectonism and magmatism, depositional axis in the benue trough was displaced westward resulting in subsidence of the anambra basin. Abubakar mb, obaje ng, luterbacher hp, dike efc, ashraf ar 2006 a report on the occurrence of albiancenomanian elaterbearing pollen in nasara1 well, upper benue trough, nigeria.
Evolution of gongola basin upper benue trough northeastern. Pdf sequence stratigraphy of well dx, gongola subbasin. Its located in the gongola sub basin, upper benue trough, north eastern part of nigeria. As part of a continuing benue valley project initiated at the university of ibadan in 1966 by professor k.
The benue trough of nigeria figure 1a is an intracontinental basin in central west africa that extends ne to sw. Bulletin centrerecherces, elf exploration production, 21. Evolution of gongola basin upper benue trough northeastern nigeria. Alluvium, kerrikerri formation, gombe sandstone, pindiga formation, yolde formation, bima group and the basement complex rocks odedede and adaikpoh, 2011. Evaluation of arsenic concentration in rocks of kaltungo. Sequence stratigraphy of well dx, gongola subbasin, upper. The benue trough is conventionally subdivided into a lower benue trough, abakaliki trough of whiteman 1982, a middle benue trough and an upper benue trough benue valley respectively of whiteman 1982. The upper benue trough is y shaped made up of three arms, namely. The anambra basin, therefore, is a part of the lower benue trough containing postdeformational sediments of campanianmaastrichtian to eocene ages. Pdf stratigraphic report of the middle benue trough. The stratigraphy, facies relationship and paleoenvironment of selected west african and.
American scientific research journal for engineering, technology, and sciences asrjets 2018 volume 46, no 1, pp 01 16. Sequence stratigraphic interpretation of the cretaceous. Study of porosity loss due to compaction in the cretaceous upper. The benue trough is geographically subdivided into lower, middle, and upper benue trough whiteman 1982 fig. Stratigraphic setting the benue trough is a major nesw trending rift basin of 50 150km width and over km length. Sequence stratigraphy of paleocene sediments of pondicherry area, cauvery basin, south india, tamil nadu author. Geological map of the northern benue trough showing the study area zaborski, et al. Sequence stratigraphy of well dx, gongola subbasin, upper benue trough, nigeria. The basin was formed during the cretaceous period extending towards chad on the north and the niger delta on the south.
Reservoir potentials of the cretaceous gombe sandstone. Geology and stratigraphy of middle cretaceous sequences. A consideration for petroleum reservoir indicators. It is associated with the deposition of the awgu shale and agbani sandstones, which are lateral equivalents of the fika sekunle shale inthe upper benue trough. The regional geology and stratigraphy of the benue trough have been. These factors become the cardinal focus of this study on the nkporo shale deposit at orekpekpeimiegba area western part of anambra basin figs.
The upper benue trough is further subdivided into three basins. The the present study focuses on understanding the sequence stratigraphic framework of ravathamkuppam pond section to analyze the micropaleontological ichnological aspects in order to determine the depositional environment and sea level changes during. Middle cretaceous sequence stratigraphy at the ashaka cement. Stratigraphic units of the upper benue trough 11 3. Various conventional coal analytical methods were adopted according to the. The benue trough was terminated by a late santonian episode of compressional folding. Stratigraphic succession of the upper benue trough from samaila et al. The absence of extensive volcanism in the benue trough can now be explained. Basinal structure of yola arm of the upper benue trough nigeria. The benue trough is geographically subdivided into lower, middle and upper benue trough petter, 1982. The benue trough is a major geological structure underlying a large part of nigeria and. Bornu basin is an inland sub45 basin within the southwestern boundary of the lake chad basin and forms part of the.
Textural and compositional studies of sediments from parts of the. Nigeria5 benue trough and the midafrican rift system. Geological characterization of azara barite mineralization. Subbasin of the northern benue trough indicated that the. Sukuliye sekule formation, facies equivalent of the numanha formation in the upper benue trough, nigeria. Regional geologic setting of the upper benue trough and location of the study area the benue trough in nigeria is one of the five mineral belts in the country endowed with rich mineral wealth. The area is part of the middle benue trough of nigeria and the area is composed of the late albian cenomanian awe and keana formations consisting essentially of sandstones with intercalations of bands of shales and clays and cenozoic volcanics. Sequence stratigraphic model of southern benue trough and anambra basin using the transgressiveregressive curve 12 onu. The earliest cretaceous sequence is the continental bima sandstone, which rests unconformably on the undulating pre c ambrian b asement. He stressed that the major structural trends in the basement of the trough are ns.
A study of the best known deposit of barytes at azara in the middle benue trough shows that the minera l, like the leadzinc, infills fracture systems, but in generally arenaceous deposits. Stratigraphic evolution of the benue trough and its implications for. Biostratigraphy of upper cretaceous foraminifers of the benue trough, nigeria sunday w. Petrology, physicochemical and thermal analyses of. The origin and evolution of the cretaceous benue trough nigeria. The cote divoireghana marginal ridge cigmr and the benue trough were formed during the early cretaceous. In the upper cretaceous, the benue trough probably formed the main link between the gulf of.
Pdf petroleum potentials of the nigerian benue trough and. Petters department of geology, university of ibadan, ibadan, nigeria abstract the main stages of tectonic evolution of the benue trough are well documented in the stratigraphic. A bibliography of geological studies on the benue trough of. The tectonic evolution of nigerias benue trough has recently been the focus of investigations, especially in relation to continental drift and opening of the south atlantic ocean during cretaceous times. Albian bima sandstone, upper benue trough, nigeria. Generalized geoseismic cross section of offshore part of benin basin, gulf of guinea province 16.
The stratigraphy of the gongola subbasin of northern benue trough is presented in figure 2 while summary of the description of sediments is given thereafter from oldest to youngest. Jun 16, 2019 schist belts metasedimentary and metavolcanic rocks. Palynomorphs distribution, biostratigraphy and paleoecology. Stratigraphy, basin analysis and paleooceanography. Jan 01, 1985 cretaceous stratigraphy of the middle and lower benue trough figure i is a map of the geology of the benue trough region of nigeria. Basin framework and basement structuring of lower benue. Did the benue trough connect the gulf of guinea with the. In the albian times, a great delta developed in the upper benue trough, while the first.
Afikpo is located in the southern benue trough, between the abakiliki anticlinorium running. Stratigraphic evolution of the benue trough and its. Surface geochemical exploration in benue trough, nigeria. Stratigraphic succession in the upper benue trough. Stratigraphy and structure of the cretaceous gongola basin ne. Biostratigraphy of upper cretaceous foraminifers of the benue trough, nigeria.
Here, we analyse the stratigraphy and tectonic framework of the bima. The benue trough is a failed arm of a triple junction aulacogen that existed beneath the present position of the niger delta during the cretaceous times. Geology and tectonosedimentary disposition of the bima sandstone. Jun 26, 2019 the lower benue trough is the southern portion of the benue trough that is believed to have originated as a failed arm of an aulacogen at the time of the. The stratigraphy of the abakaliki fold belt is similar to that of the southern benue trough, and paleoenvironmental interpretations in the lower benue trough are also valid here. The gongola basin arm of the upper benue trough is a ns trending arm of the km long benue trough. Stratigraphic and facies analysis of the gulani member of the pindiga formation in the gongola.
New stratigraphic, sedimentologic and structural data on the kerrikerri. Petroleum potentials of the nigerian benue trough and anambra. Tectono stratigraphic history of the keta basin, ghana with. Petrology, physicochemical and thermal analyses of selected. Middle cretaceous sequence stratigraphy at the ashaka cement quarry in gongola basin of the upper benue trough, northeast nigeria suleiman u. The benue trough is an intracontinental rift basin characterized by tectonic and magmatic activities during cretaceous times. The nigerian benue trough is an intracratonic rift structure which evolution is related to the early cretaceous opening of the south atlantic ocean and the gulf of guinea. It is part of the broader west and central african rift system.
Late cretaceous palynostratigraphy in the gongola basin. Biostratigraphy of upper cretaceous foraminifers of the benue. Previous hydrocarbon potential assessments of the successions in the trough revealed a number of organic rich intervals capable of yielding significant quantities of hydrocarbons in the cretaceous sections. Benue trough as one arm of a cretaceous rrr triple junction. Stratigraphic report of the middle benue trough, nigeria. The stratigraphic correlations for the lower southwest, middle, and upper northeast benue is given in table 1 as presented by kogbe 1981a. Palynostratigraphy and age of the sequence penetrated by the. Most of nigerias leadzinc occurrences are found within the basin.
The benue trough is geographically subdivided into lower, middle and upper benue trough 4. These subdivisions are broadly based on differences in the physiographic and lithostratigraphic nomenclature sonibare et al. The study area covered abuni and its environs in the awe local government area of nasarawa state, nigeria. It is geographically subdivided into lower, middle and upper portion. Geochemistry of termite mounds in the sediment hosted lead.
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