Groundwater contamination in the basementcomplex area of ileife. The structural geology of eshiawa in igarra area, southwestern nigeria adiela u. Auriferous showings in the bedrocks and stream sediments of. Pdf structural geology of the basement complex rocks in. This is approved for students in accountancy business computer science economics engineering arts. O department of geology, ekiti state university ado ekiti. The geology, stream sediment geochemical survey and.
Significant of geology and geophysical investigations in. Geophysical evaluation of magnetic data of okenugbo area, ago. Analysis of physical parameters of limestone deposits in. The structures of the pan african belt in the southwestern nigeria eshiawa area of igarra are the. Geological mapping, petrological study and structural. Electrical resistivity imaging eri data for characterising crystalline basement structures in abeokuta, southwestern nigeria. Iyanaiyesi and canaan land area of ota, southwestern nigeria figs. Odeyemi intermediate rocks from older granite complexes. Hydrogeochemical assessment of surface water in the. Groundwater quality appraisal of some handdug wells and. Use of vertical electrical geophysical method for spatial.
Introduction owo, a town in ondo state, southwestern nigeria, is an agrarian community with some commercial activities. In line with this, we conducted a survey to document the rich geological, biological and cultural resources contained within the ufeoke section of idanre hills. Statistical studies of soil geochemical data from gbonganodeyinka area, southwestern nigeria. Akinade so, olisa o 2014 geochemical study of soils, road dust and stream sediments around ijebuode, southwestern, nigeria. Pdf the geology of eshiawa in igarra area, southwestern nigeria.
Lagos is situated and enclosed in the southwestern nigeria, a coastal zone marked by lagoons and coastal creeks 14 emerged by sand ridges barrier beaches linked with sand accumulation 34. The northeastern part of the town is undoubtedly the. The sediments are of maastrichtian age deposited in the shallow marine environment with varying thicknesses. It is situated at the northern part of akoko edo local government of edo state, southwest nigeria, within the topographical map of 7, fig.
Assessment of groundwater system characteristics in ilorin. Geochemistry and upb zircon geochronology of the pegmatites in ede area, southwestern nigeria. Water quality evaluation of okemesi area, southwestern nigeria olusiji samuel ayodele department of geology, ekiti state university, p. Rockeval data of forty seven 40 shales give total organic carbon. Geology, geochemistry and origin of the banded and granite gneisses in the basement complex of the ilesha area, southwestern nigeria. Geochemical study of soils, road dust and stream sediments. The precambrian basement complex covers about 50% of nigeria and extends into the neighbouring countries of benin and cameroon. Geophysical study of the northeastern part of owo was conducted to investigate the geoelectric characteristics of its aquiferous units and its implication on groundwater potential of the area.
Modal composition of the quartz schist 1 2 345 6 7 quartz % 92 94 93 90 89. Geology and geotectonic setting of the basement complex rocks. Introduction this study is focused on the significant of geologic mapping and integrated geophysical methods in assessing the groundwater prospect of a typical basement terrain in some parts of southwestern nigeria. Southwest nigeria map nigeria mapcarta the free map. Hydrogeochemical assessment of surface water in the central part of ekitistate, southwestern nigeria. Contains details on the geological units of nigeria and the associated mineral resources. Geophysical evaluation of magnetic data of okenugbo area.
Role of electrical resistivity method for groundwater. Ifon, the study area is located in the presentday ondo state in the southwestern region of nigeria. The pan african event in southwestern nigeria can be divided into three age intervals. Morphometric analyses of osun drainage basin, southwestern nigeria akinwumiju, a. O adewoyin 1department of physics covenant university ota, ogun state, nigeria 2department of geology university of ilorin, kwara state, nigeria. In order to follow up some geochemical anomalies discovered in a regional stream sediment survey in parts of southwestern nigeria, a medium density geochemical soil survey was carried out in gbonganodeyinka area of osun state, southwestern nigeria. An integrated geological, geoelectrical and hydrochemical investigation of shallow groundwater occurrence in the ibadan area, southwestern nigeria, is presented. The occurrence of groundwater in nigeria is dependant primarily on the geology, and groundwater regions can be classified accordingly. Several studies have also been carried out to evaluate the distribution of limestone deposits at ewekoro quarry.
The study area lekki free zone is located between latitude 625 and 627 north of the equator and longitude 357 and 403 fig. The landmass of the study area consists of islands, coastal sand banks, high forest i. Geology, geochemistry and origin of the banded and granite. Groundwater contamination in the basementcomplex area of ileife, southwestern nigeria. Pdf an overview of the geology and hydrogeology of nigeria. The importance, how to, effect causes relationship, comparison, history, role, solutions are discussed. Get free research paper on geology of bolorunduro area, atakumasa local government ifenorth, osun state project topics and materials in nigeria. Variability in the geotechnical properties of some residual. Sulphur forms distribution in soil profiles of different. Ekwueme, 1998, ukaegbu, 2003 reported on the geochemistry of gneisses from the obudu area, whereas ukwang 1998 studied the geochemistry of granulites in southwestern obudu. Nigeria 2 department of earth sciences, ladoke akintola university of technology, ogbomoso, oyo state, nigeria abstract okenugbo area of agoiwoye, southwestern nigeria was investigated for the evaluation of groundwater potential. A case study using the electricalresistivity geophysical method. Single zircon ages of migmatitic gneisses and granulites in.
This assessment is required for groundwater resource development planning as well as monitoring. The geophysical method involved the use of 2d electrical resistivity imaging which was acquired along five 5 traverses, while the geochemical method involved the physicochemical. Petrology and structural geology of lankpeshi area of igarra. Geology and geotectonic setting of the basement complex rocks in south western nigeria. Geophysical and geochemical studies were carried out in the eastern part of lagos metropolis to determine the possible contamination of subsurface soils and groundwater as a result of dumping of waste into the canal. The obudu plateau is one of the least known regions of the nigerian basement.
Geotechnical properties of lateritic overburden materials on. The gneisses of the obudu area have a high sio 2 content 5366 wt. In addition to ecec method, several other methods will be used to evaluate the cec of these soils. They distinguished mainly between the barren and mineralized pegmatite. Iwaraja area, southwestern nigeria showed that the basement rocks comprise quartzites and quartz. The geology of nigeria formed beginning in the archean and proterozoic eons of the. The geophysical method involved the use of 2d electrical resistivity imaging which was acquired along five 5 traverses, while the geochemical method involved the. Idanre, which represents a unique topographical landscape within southwestern nigeria, is being proposed to the united nations educational scientific and cultural organization unesco for designation as a world heritage site. Free downloads british geological survey bgs browsing.
A geoelectricalhydrogeochemical investigation of shallow. Drilled core samples of the araromi formation in the eastern dahomey basin penetrated by araromi and gbekebo exploratory wells were investigated to establish the source rocks potentials in the onshore area of the basin. It is found within the sedimentary basin dahomey basin of southern western nigeria. Statistical studies of soil geochemical data from gbongan. Geophysical bvaluation of magnetic data of okenugbo area, agoiwoye, southwestern nigeria h. Gisbased integrated groundwater potential assessment of osun drainage basin, southwestern nigeria akinwumiju, a. The application of integrated geophysical methods in oil. Morphometric analyses of osun drainage basin, southwestern. Large sedimentary basins formed in southern nigeria, divided by the okitipupa ridge. Owo, a town in ondo state, southwestern nigeria, is an agrarian community with some commercial activities. Area j4, southwestern, nigeria using the direct laboratory method to characterize the mica schist into different degrees of purity for both economic and commercial purposes.
The primary objective was to characterise the groundwater in a typical lowlatitude environment underlain by precambrian crystalline basement complex rocks. Olaleye3 1department of physics, olabisi onabanjo university, agoiwoye, nigeria 2deapartment of chemical, geological and physical sciences, kwara state university, malete, nigeria 3department of earth sciences, faculty of pure and applied science. A geological map identifies and shows the distribution of various rock types in area. Geotechnical properties and geochemical composition of. Rb versus nb y and nb versus y, and thta ratio combined with field observations and empirical information from the literature were used to infer the tectonic environments and sources of the rare metal mineralization in the pegmatites of komu area, southwestern nigeria. The geology, stream sediment geochemical survey and ground. The northeastern part of the town is undoubtedly the commercial nerve centre of the community in which most commercial activities revolve. It is the objective of this study therefore to update the classification of six of the most common soil series in southwestern nigeria in consonance with the knowledge of modern soil science. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i.
Durojaiye abstract some residual clay soils from southwestern nigeria have been investigated with a view to elucidating their geotechnical prop erties and determine the possible variations in these properties in relation. Auriferous showings in the bedrocks and stream sediments. Thirty 30 boreholes were examined and samples were collected from these boreholes. Geophysical and geochemical site investigation of eastern. A newly discovered oldest pan african rock in southwestern nigeria.
Ilesha area in southwestern nigeria to wamba area in jos plateau fig. Review of the basement geology and mineral belts of nigeria. Schematic hydrogeological crosssection along the coastal area of lagos state, southwestern nigeria. The chemical composition of selected samples in the area is given in table 1. The geology of igarra, south west nigeria adarighofua o.
Precambrian geology of nigeria including the southwestern nigerian basement complex. If you dont have an account with springer immediately available per pdf download no of nigerias geology and mineral resources with the aim of promoting. Hydraulic and hydrochemical characteristics of the phreatic basement aquifers in parts of southwestern nigeria. The study was aimed to evaluate the subsurface geologic and geoelectric properties that might contribute. The climate of the study area is characterized by long rainy season from march to november. Petrology and structural geology of lankpeshi area of. B 5363 adoekiti author for correspondence abstract the geology, stream sediment geochemical survey and groundwater quality evaluation of okemesi and environs, southwestern, nigeria was carried out. Geochemical analysis of shallow groundwater from ilorin metropolis was carried out with the aim of assessing the hydrogeochemical characteristics of the groundwater.
Pdf the geological and structural evolution assessment of the basement complex rocks in. Variability in the geotechnical properties of some residual clay soils from southwestern nigeria i. Geotechnical properties of lateritic overburden materials. The discrimination diagrams show that the pegmatites were mainly emplaced in tectonic. Single zircon ages of migmatitic gneisses and granulites. Rb versus nb y and nb versus y, and thta ratio combined with field observations and empirical information from the literature were used to infer the tectonic environments and sources of the rare metal mineralization in. Nov 28, 2014 geophysical and geochemical studies were carried out in the eastern part of lagos metropolis to determine the possible contamination of subsurface soils and groundwater as a result of dumping of waste into the canal. Groundwater potential assessment in a sedimentary terrain.
Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of part 2. Geochemistry and upb zircon geochronology of the pegmatites. Several studies have also been carried out to evaluate the distribution of limestone deposits at. These samples were subjected to chemical analyses to determine both cations and anions compositions of the groundwater. The study area is located in part of osun state and ekiti state, southwestern nigeria. Abstract the geochemistry of the major oxides, provenance and tectonic setting as well as the maturity status of the ode aye bitumenimpregnated sand tar sand are presented in this study. Thirtytwo points were sounded along three different sections of the town namely. Within this belt, the individual pegmatite bodies generally trend. A case study from fidiwoajebo areas of southwestern nigeria. The central part of ekitistate which is predominantly basement terrain is characterized with occurrence of numerous surface water. As shown in figure 2, the spatial coordinates are defined by latitudes 647.
Geoelectric characterization of aquiferous units and its. Hydrogeochemical assessment of surface water in the central. Abstract the study area falls within the basement complex of southwestern nigeria. Pdf the structural geology of eshiawa in igarra area. Osunogun river network is one of the few drainage systems in the southwestern nigeria that empties its contents directly into the gulf of guinea.
Tectonic environments and rare metal mineralization in. Compositional and petrogenetic features of schistose rocks of ibadan area, southwestern nigeria 140 figure 1. Role of electrical resistivity method for groundwater exploration in hard rock areas. An inventory of the geological, biological and cultural. Geology of the area the study area is located geographically within latitudes 724. Groundwater quality appraisal of some handdug wells and boreholes around okemesi and ikoro area, southwestern nigeria. Geology and mineral resources of nigeria nuhu george obaje. Geology and mineral resources of nigeria nuhu george. Within this belt, the individual pegmatite bodies generally trend in a ns direction. The application of integrated geophysical methods in oil sand exploration in agbabu area of southwestern nigeria j. Ladoke akintola university of technology, ogbomoso, nigeria email address. Elizabethan publishing company, 1976 geology 436 pages.
The eburnean event is marked by the emplacement of the ibadan granite gneiss in southwestern nigeria which has been dated 2500200ma rahaman 1988 and a pink granite gneiss at ileife southwestern nigeria dated 1875ma using upb on zircon. Updated classification of some soil series in southwestern. Ako 2 1department of applied geophysics, federal university of technology, akure, nigeria 2department of geology, obafemi awolowo university, ileife, nigeria accepted 03 september, 2012. The early pan african event gives various ages in different areas across the continent of africa. Vertical electrical sounding method was employed and schlumberger configuration was adopted. Description and geological setting the study area figs. The application of integrated geophysical methods in oil sand. Pdf abstract the nigerian basement complex has undergone polyphase metamorphism and. The area of study lies within the basement complex rocks of southwestern nigeria figure 1 which is part of the pan african mobile belt lying to the east of the west african craton. Petrological characteristics of some cretaceous igneous rocks, in southwest of gboko, southern benue trough, nigeria. Geotechnical properties and geochemical composition of kaolin. It is one of the large mountain ranges making up the eastern nigeria highlands and attains a height of 1576 m in the obudu cattle ranch area, suggesting that the continental lithosphere is abnormally thick in this region.
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