Integrating aeromagnetic and landsat etm data in structural. Methodology a total of 22 core samples were obtained from 22 outcrop sites and figure 1. It shows complicated arrangement of long wavelength anomalies, with significant magnetic low. The santonian sediment is unlikely to be present in the well analyzed, because, the interval do. The origin and evolution of the cretaceous benue trough nigeria. The results of an interpretation of aeromagnetic anomalies over the lower and middle benue trough of nigeria are presented. Singh petrography of the upper bima sandstone modal study of 17 thin sections of the upper bima sandstone shows quartz, feldspars and rock fragments constituting the main components of the upper bima sandstone. Lithofacies association in the bima sandstone of upper benue trough, nigeria. Palynostratigraphy and age of the sequence penetrated by. Exploration of the inland basins have not been commercially successful todate, principally because of the lack of knowledge of their geology and also because of. Nine aeromagnetic maps were analyzed to determine some characteristics of a prominent aeromagnetic anomaly within the gongola basin in the upper benue trough, northeastern nigeria, by abubakar et. The benue trough is arbitrarily subdivided into upper, middle and.
The lithofacies and structures of the upper benue trough were contained in the sheet of geological maps accompanyinggeologicalsurveyof nigeriabulletin30as compiledbycarteretal1963. Geology and tectonosedimentary disposition of the bima sandstone of the upper benue trough nigeria. This paper therefore, attempts to update the knowledge on the structural setting, sequence stratigraphic successions and mineral resources of the lower benue trough. Interpretation of airborne magnetic data of upper benue.
Study of porosity loss due to compaction in the cretaceous. Study of porosity loss due to compaction in the cretaceous upper bima sandstone, upper benue trough, n. Interpretation of aeromagnetic anomalies over parts of upper benue trough and southern chad basin, nigeria a. The benue trough is nigerias main but not exclusive source of baryte mineralization. A magmatic failed rift beneath the gongola arm of the. Girei district is situated within the yola arm of the upper benue trough. Late cretaceous palynostratigraphy in the gongola basin. Pdf structuraldepth analysis of the yola arm of the upper benue. Synopsis of geology the benue trough the study area lies within the gongola subbasin of the upper benue trough. Geology and baryte mineralization of the liji area, upper. The lower benue trough is underlain by a thick sedimentary sequence deposited during the cretaceous and made up of. The results show that the contents of trace and major elements in the area are generally low and vary by factors ranging from about 3 times as, v, about 4 times ni, w, about 6 times cd, rb, be, about 10. The guyuk area represents the gongola arm while yola area represents the yola arm of the upper benue trough. A bibliography of geological studies on the benue trough of nigeria.
Biostratigraphy of upper cretaceous foraminifers of the. Stratigraphic report of the middle benue trough, nigeria. The benue trough was terminated by a late santonian episode of compressional folding. Geoelectrical evaluation of groundwater potentials of. The upper benue trough in the northeast of nigeria, on account of its tectonosedimentary evolution, has a fairly complex sedimentation pattern. Vibroseis hardwire similarity tests results trend and signal. Pdf petroleum potential of cretaceous shales in the. The area has been given less attention with regards to geological studies than the other parts of the lower benue trough or the middle benue trough. Itshowsthatzambukridge separates the upper benue trough into two. A magnetic anomaly map of the gongola arm of the upper benue trough was compiled from existing halfdegree sheets of the upper benue trough. The middle benue trough which is of particular interest in this project work encompasses the study area located in abuni and its environs awe local government of nasarawa state.
The map is dominated by an elongated nesw magnetic low anomaly that stretches over a 100 km distance and has an average width of about 20 km. Evaluation of the potential for shale gas exploration in. Methodology geological mapping of the liji area was conducted using the topographic. Evolution of gongola basin upper benue trough northeastern. Evaluation of the potential for shale gas exploration in the fika shales of the gongola basin, upper benue trough, nigeria lukman m.
It forms an important part of a system of linear sedimen tary basins which includes the niger, benue and gon gola rivers. Bima sandstone was formed during tectonic quiescence and in a humid tropical climate in the midcretaceous times. Chemistry of maiganga coal deposit, upper benue trough, north. Biostratigraphy and paleoenvironment of the coniacian. Palaeogeographical and structural evolution of the upper benue. Palynomorphs distribution, biostratigraphy and paleoecology. The benue trough is geographically subdivided into lower, middle and upper benue trough 4. Jun 21, 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 presence of longapertites sp 3 lawal and moullade, 1986 at the top of the zone marks the base of campanian age. The benue trough, located at the gulf of guinea reentrant on the west african coast fig.
Interpretation of aeromagnetic anomalies over the lower. Early studies of the upper benue trough and southern bornu basin were carried out by 8, 9, 10 and 11. The northern part of the benue trough is subdivided into three subbasins. The stratigraphic succession in the upper benue trough is shown in fig. Benue trough pdf 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. Within the benue trough, there are so many evidences of extensional movements, from large faults in the late jurasic early cretaceous sands tones guiraud, 1993 to small scale fractures of the lower benue trough benkhelil, 1988. Abstract 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. The benue trough is a major nesw trending rift basin of 50 150km width and over km length. Received may 22,1980 the remarkable similarity in shape between the benue trough and the volcanic cameroon line suggest that they fernanda. The late cenomanian to early turonian was a period of.
A bibliography of geological studies on the benue trough of. Nwokeabia 1 1department of geological sciences, nnamdi azikiwe university awka, nigeria 2department of geology, anambra state university, uli, nigeria. The geology of the benue trough, though better known than the geology of. Geology and mineral resources of the lower benue trough, nigeria. Biostratigraphy of upper cretaceous foraminifers of the benue trough, nigeria. Oden 2012 reported that occurrences of baryte are found in various localities of eight states within the benue trough. W paralic arenaceous foraminifera from the upper cretaceous of the benue trough, nigeria. In the albian times, a great delta developed in the upper benue trough, while the first marine transgression coming from the opening gulf of guinea occurred in. Microfacies and biostratigraphy of the limestone shale. The study of airborne magnetic data revealed some features that are interpreted in terms of deep geologic structures with. Download scientific diagram stratigraphic succession in the upper benue trough. Reservoir potentials of the cretaceous gombe sandstone. Geologic remote sensing in the upper benue trough of nigeria.
They include alifokpa, gabu and osina in cross river state. Lithofacies association in the bima sandstone of the upper. The gongola basin arm of the upper benue trough is a ns trending arm of the km long benue trough. In recent years, mautech modibbo adama university of technology campus, a relatively small area within the district, has experienced and is still experiencing rapid infrastructural expansiondevelopment including construction of students hostels, faculty complexes. Speculation of cenomanian hiatus in the southern and central benue trough was stalled by recognition of many deposits of this age along the entire length of the trough from south to north. The tectonic, stratigraphic and organic geochemical evaluations of these basins suggest the similarity with the contiguous basins of chad and niger republics and sudan, where commercial oil discovery have been made. The coal samples used for the analyses were sourced from the maiganga coal mine. The zlivisporites blanensis assemblage zone is here dated coniacian age. Spectral depth analysis of parts of upper benue trough and.
They consist of sedimentary sequences of shale and limestone fig. Pdf two member subdivision of the bima sandstone, upper. The study area which is located in the southeastern part of. The upper benue trough is y shaped made up of three arms, namely. This study throws more lights on the magnetic nature of the upper benue with the identification of nesw trending faults in the area which correlate with the geology of the area. A bibliography of geological studies on the benue trough. The benue trough has a width of 150 km and trends northeasterly to attain an approximate length of 800 km. A magmatic failed rift beneath the gongola arm of the upper. Palynostratigraphy and age of the sequence penetrated by the. The benue trough of nigeria figure 1a is an intracontinental basin in central west africa that extends ne to. Soil geochemical study aimed at determining the background levels of trace and major elements in soils of a relatively small part mautech campus of girei district has been carried out.
Pdf geology and tectonosedimentary disposition of the bima. Geologic remote sensing in the upper benue trough of. Pdf the early cretaceous bima sandstone is a continental succession in the upper benue trough, nigeria formally divided into the lower, middle and. Petroleum potentials of the nigerian benue trough and. Mineralisation, paragenesis, brecciation, lower benue, trough introduction the benue trough is an intracratonic rift trending southwestnortheast from about latitude 60n near the gulf of guinea to about latitude 100n south of the chad basin. In recent years, mautech modibbo adama university of technology campus, a relatively small area within the district, has experienced and is still experiencing rapid infrastructural expansiondevelopment including con. Fitton grant institute of geology, university of edinburgh, edinburgh u. It is part of the broader west and central african rift system. Pdf lithofacies association in the bima sandstone of upper. The geology of the lower benue trough has been documented through the tectono. The benue trough is a major geological structure underlying a large part of nigeria and. Petrographic analysis of the bima sandstone in the upper.
Benue valley invertebrata mesozoic upper cretaceous. It is geographically subdivided into lower, middle and upper portion. This shows that the benue trough trends nesw and have the same structural control as the benue trough. Interpretation of aeromagnetic anomalies over parts of. Lar ua, dibal h, schoeneich k 2011 fluoride in groundwater in. Girei district is situated within the yola arm of the upper benue trough figure 1. 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 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, 1989. Petroleum potential of cretaceous shales in the upper benue trough, nigeria. This is in many ways the most interesting of the sedimentary basins in west africa. The spectrum of depositional environments represented in the bfnue trough. The main stages of tectonic evolution of the benue trough are well documented in the stratigraphic succession, basically comprising three depositional sequences. Pb in the benue trough and cameroon line a migrating rift. 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.
Introduction the benue trough is an elongated trough of subsidence. Background geochemistry of soil in part of girei district. Interpretation of the results revealed the crystalline basement of adamawa, cameroon, mandara and hawal massifs, which border the trough as the source areas. The upper benue trough in the northeast of nigeria, on account of its tectonosedimentary evolution, has a fairly complex sedimentation pattern which is reflected on bima sandstone. The benue trough is an intracontinental basin that trends sswnne for about 800 m and is about 150 m wide, and contains up to 6000 m of cretaceoustertiary sedimentary rocks and some volcanics abubakar, 2014. All the models imply an intraplate rifting for the genesis of benue trough. Download pdf download citation view references email request permissions export to collabratec alerts metadata. Geological map of the upper benue trough showing the study area modified from zaborski, et al. Vibroseis hardwire similarity tests results trend and. Petroleum potentials of the nigerian benue trough and anambra.
The benue trough of nigeria figure 1a is an intracontinental basin in central west africa that extends ne to sw. Regionally, the benue trough is part of an early cretaceous rift complex known as the west and central african rift system. No concrete line can be drawn to demarcate the individual. Introduction the benue trough is a linear northeast african. Reviews on the geology and stratigraphy of the benue trough and particularly the upper benue trough have been presented by several workers petters, 1982, benkhelil, 1982, dike, 1993, obaje, 1994, zaborski et al. Stratigraphic succession in the upper benue trough.
Pdf the yola arm is the eastwest trending part of the upper benue trough made up of cretaceous sediments that are albian to. The upper benue trough is further subdivided into three basins. Pdf geology and tectonosedimentary disposition of the. 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. Stratigraphic evolution of the benue trough and its. The basis for all later work was provided by 12 who. The bima sandstone has good exposures in the upper corresponding author email.
Organic geochemistry of the kolmani river1 well, upper. Stratigraphic setting sedimentation in the lower benue trough commenced with the marine neocomian albian asu river group. Apr 28, 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. Biostratigraphy of upper cretaceous foraminifers of the benue. In the upper cretaceous, the benue trough probably formed the main link between the gulf of. Geology and mineral resources of the lower benue trough. Nwosu department of physics imo state university owerri, imo state, nigeria. Upper benue trough in the north eastern part and other sedimentary basins in nigeria after obaje, 2009. Petroleum prospectivity of cretaceous formations in the. The upper benue trough comprises the area extending from the basharmutum biyu line as far north as the dumbulwabage high of 7, which separates it from the bornu basin. The spectrum of depositional environments represented in the bfnue trough ranges from fluvia. The trough is subdivided into lower, middle and upper benue troughs. The cretaceous sediments of the benue trough are geographically divided into lower, middle and upper benue trough fig.
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