Auriferous showings in the bedrocks and stream sediments. This assessment is required for groundwater resource development planning as well as monitoring. Morphometric analyses of osun drainage basin, southwestern. The geophysical method involved the use of 2d electrical resistivity imaging which was acquired along five 5 traverses, while the geochemical method involved the. Ako 2 1department of applied geophysics, federal university of technology, akure, nigeria 2department of geology, obafemi awolowo university, ileife, nigeria accepted 03 september, 2012. A geological map identifies and shows the distribution of various rock types in area. Vertical electrical sounding method was employed and schlumberger configuration was adopted. Geotechnical properties and geochemical composition of. An integrated geological, geoelectrical and hydrochemical investigation of shallow groundwater occurrence in the ibadan area, southwestern nigeria, is presented.
Pdf the structural geology of eshiawa in igarra area. Pdf the geological and structural evolution assessment of the basement complex rocks in. 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. Contains details on the geological units of nigeria and the associated mineral resources. 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.
Within this belt, the individual pegmatite bodies generally trend. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of part 2. Compositional and petrogenetic features of schistose rocks of ibadan area, southwestern nigeria 140 figure 1. Geochemical study of soils, road dust and stream sediments. 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. Updated classification of some soil series in southwestern. Iwaraja area, southwestern nigeria showed that the basement rocks comprise quartzites and quartz. The occurrence of groundwater in nigeria is dependant primarily on the geology, and groundwater regions can be classified accordingly. Groundwater quality appraisal of some handdug wells and boreholes around okemesi and ikoro area, southwestern nigeria. Geochemistry and upb zircon geochronology of the pegmatites in ede area, southwestern nigeria. Review of the basement geology and mineral belts of nigeria.
Tectonic environments and rare metal mineralization in. The discrimination diagrams show that the pegmatites were mainly emplaced in tectonic. Geophysical and geochemical site investigation of eastern. Electrical resistivity imaging eri data for characterising crystalline basement structures in abeokuta, southwestern nigeria. The central part of ekitistate which is predominantly basement terrain is characterized with occurrence of numerous surface water. 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. Geology, geochemistry and origin of the banded and granite gneisses in the basement complex of the ilesha area, southwestern nigeria. Variability in the geotechnical properties of some residual. As shown in figure 2, the spatial coordinates are defined by latitudes 647. Ifon, the study area is located in the presentday ondo state in the southwestern region of nigeria. Petrological characteristics of some cretaceous igneous rocks, in southwest of gboko, southern benue trough, nigeria. Evaluation of terrain conditions in ilesa schistbelt. The study area is located in part of osun state and ekiti state, southwestern nigeria.
An inventory of the geological, biological and cultural. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i. The northeastern part of the town is undoubtedly the commercial nerve centre of the community in which most commercial activities revolve. Assessment of groundwater system characteristics in ilorin. The gneisses of the obudu area have a high sio 2 content 5366 wt. 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. Geological mapping, petrological study and structural. 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. Geology and mineral resources of nigeria nuhu george obaje. Matheis and caenvachette, 1983 further studied the pegmatites of the pan african reactivation zone covering areas like egbe, ijero and wamba, southwestern nigeria. Owo, a town in ondo state, southwestern nigeria, is an agrarian community with some commercial activities. 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.
The geology of igarra, south west nigeria adarighofua o. Free downloads british geological survey bgs browsing. The early pan african event gives various ages in different areas across the continent of africa. O department of geology, ekiti state university ado ekiti. 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. The chemical composition of selected samples in the area is given in table 1. This is approved for students in accountancy business computer science economics engineering arts. Odeyemi intermediate rocks from older granite complexes. Pdf abstract the nigerian basement complex has undergone polyphase metamorphism and. 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. Groundwater quality appraisal of some handdug wells and. Statistical studies of soil geochemical data from gbonganodeyinka area, southwestern nigeria.
O adewoyin 1department of physics covenant university ota, ogun state, nigeria 2department of geology university of ilorin, kwara state, nigeria. Several studies have also been carried out to evaluate the distribution of limestone deposits at ewekoro quarry. Hydrogeochemical assessment of surface water in the central. Significant of geology and geophysical investigations in.
Hydrogeochemical assessment of surface water in the central part of ekitistate, southwestern nigeria. Sulphur forms distribution in soil profiles of different. Statistical studies of soil geochemical data from gbongan. 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 geophysical method involved the use of 2d electrical resistivity imaging which was acquired along five 5 traverses, while the geochemical method involved the physicochemical. 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. 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. 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. The study was aimed to evaluate the subsurface geologic and geoelectric properties that might contribute. The application of integrated geophysical methods in oil sand exploration in agbabu area of southwestern nigeria j. Thirty 30 boreholes were examined and samples were collected from these boreholes. The sediments are of maastrichtian age deposited in the shallow marine environment with varying thicknesses. Osunogun river network is one of the few drainage systems in the southwestern nigeria that empties its contents directly into the gulf of guinea. Petrology and structural geology of lankpeshi area of igarra.
Pdf the geology of eshiawa in igarra area, southwestern nigeria. Hydrogeochemical assessment of surface water in the. 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. Groundwater contamination in the basementcomplex area of ileife. The landmass of the study area consists of islands, coastal sand banks, high forest i. The application of integrated geophysical methods in oil. Use of vertical electrical geophysical method for spatial. Groundwater potential assessment in a sedimentary terrain. A case study using the electricalresistivity geophysical method. Analysis of physical parameters of limestone deposits in. Water quality evaluation of okemesi area, southwestern nigeria olusiji samuel ayodele department of geology, ekiti state university, p. It is found within the sedimentary basin dahomey basin of southern western nigeria. Single zircon ages of migmatitic gneisses and granulites.
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. Large sedimentary basins formed in southern nigeria, divided by the okitipupa ridge. Get free research paper on geology of bolorunduro area, atakumasa local government ifenorth, osun state project topics and materials in nigeria. Introduction owo, a town in ondo state, southwestern nigeria, is an agrarian community with some commercial activities. The northeastern part of the town is undoubtedly the. Geology and geotectonic setting of the basement complex rocks in south western nigeria. Elizabethan publishing company, 1976 geology 436 pages. Single zircon ages of migmatitic gneisses and granulites in. They distinguished mainly between the barren and mineralized pegmatite. The pan african event in southwestern nigeria can be divided into three age intervals. In addition to ecec method, several other methods will be used to evaluate the cec of these soils.
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. Geoelectric characterization of aquiferous units and its. The primary objective was to characterise the groundwater in a typical lowlatitude environment underlain by precambrian crystalline basement complex rocks. Modal composition of the quartz schist 1 2 345 6 7 quartz % 92 94 93 90 89. 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. Ilesha area in southwestern nigeria to wamba area in jos plateau fig. Variability in the geotechnical properties of some residual clay soils from southwestern nigeria i. The climate of the study area is characterized by long rainy season from march to november. 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. Geology, geochemistry and origin of the banded and granite.
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. These samples were subjected to chemical analyses to determine both cations and anions compositions of the groundwater. Southwest nigeria map nigeria mapcarta the free map. The study area lekki free zone is located between latitude 625 and 627 north of the equator and longitude 357 and 403 fig. Geology and geotectonic setting of the basement complex rocks. Groundwater contamination in the basementcomplex area of ileife, southwestern nigeria. 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.
Geology and mineral resources of nigeria nuhu george. Geochemical analysis of shallow groundwater from ilorin metropolis was carried out with the aim of assessing the hydrogeochemical characteristics of the groundwater. Morphometric analyses of osun drainage basin, southwestern nigeria akinwumiju, a. The obudu plateau is one of the least known regions of the nigerian basement. Geophysical evaluation of magnetic data of okenugbo area, ago. Ladoke akintola university of technology, ogbomoso, nigeria email address. Within this belt, the individual pegmatite bodies generally trend in a ns direction. Pdf an overview of the geology and hydrogeology of nigeria. Description and geological setting the study area figs. Hydraulic and hydrochemical characteristics of the phreatic basement aquifers in parts of southwestern nigeria. Electrical resistivity imaging eri data for characterising crystalline. Geotechnical properties and geochemical composition of kaolin.
Geochemistry and upb zircon geochronology of the pegmatites. 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. Rockeval data of forty seven 40 shales give total organic carbon. Geotechnical properties of lateritic overburden materials on. The structural geology of eshiawa in igarra area, southwestern nigeria adiela u. Geophysical evaluation of magnetic data of okenugbo area. Petrology and structural geology of lankpeshi area of. A newly discovered oldest pan african rock in southwestern nigeria.
Thirtytwo points were sounded along three different sections of the town namely. A case study from fidiwoajebo areas of southwestern nigeria. The application of integrated geophysical methods in oil sand. The geology, stream sediment geochemical survey and. Geology of the area the study area is located geographically within latitudes 724. The dominant lihologic units are quartzites of effon psammite formation which occur mostly as. The geology of nigeria formed beginning in the archean and proterozoic eons of the. 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. Geotechnical properties of lateritic overburden materials. Using geoelectric soundings for estimation of hydraulic.
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. Geophysical bvaluation of magnetic data of okenugbo area, agoiwoye, southwestern nigeria h. It is situated at the northern part of akoko edo local government of edo state, southwest nigeria, within the topographical map of 7, fig. Pdf structural geology of the basement complex rocks in. Auriferous showings in the bedrocks and stream sediments of.
Role of electrical resistivity method for groundwater. Precambrian geology of nigeria including the southwestern nigerian basement complex. Variability in the geotechnical properties of some. The structures of the pan african belt in the southwestern nigeria eshiawa area of igarra are the. Schematic hydrogeological crosssection along the coastal area of lagos state, southwestern nigeria. Akinade so, olisa o 2014 geochemical study of soils, road dust and stream sediments around ijebuode, southwestern, nigeria. Gisbased integrated groundwater potential assessment of osun drainage basin, southwestern nigeria akinwumiju, a. The importance, how to, effect causes relationship, comparison, history, role, solutions are discussed. Several studies have also been carried out to evaluate the distribution of limestone deposits at. Abstract the study area falls within the basement complex of southwestern nigeria. Role of electrical resistivity method for groundwater exploration in hard rock areas. The geology, stream sediment geochemical survey and ground. The precambrian basement complex covers about 50% of nigeria and extends into the neighbouring countries of benin and cameroon.
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