The study area is generally characterised by a gentle to lowlying terrain, though some spot heights. There are considerable groundwater and surface water resources available in nigeria. Grain size and depositional pattern of sediment from okeluse area, southwestern nigeria have been carried to evaluate its textural parameters and statistical measures to depict the depositional pattern of sediments in the study area. These are the migmatitegneissquartzite complex, charnockitic and dioritic rocks, older granites and unmetamorphosed dolerite dykes figure 2. Department of earth sciences, ajayi crowther university p. Rahaman preliminary report on the field relationships of the basement complex rocks around igarra, midwest i. Geochemical study of soils, road dust and stream sediments. It is a part of the basement complex of nigeria which forms one of the three major lithopetrologic units that make up the geology of nigeria. Structural geology of the basement complex rocks in iwaraja. Add tags for the geology of part of southwestern nigeria. Pdf the geology of eshiawa in igarra area, southwestern nigeria. Geology and groundwater quality assessment of idoosi. Geology and mineral resources of nigeria nuhu george. Several authors had written on the general geology.
The application of integrated geophysical methods in oil sand exploration in agbabu area of southwestern nigeria j. Our coverage region is located at latitudes of 700. In the republic of benin, the geology is fairly well known2, 3. Geology and mineral resources of nigeria springerlink. Modelling subsurface geologic structures at the ikogosi.
Geology and groundwater quality assessment of idoosi area, southwestern nigeria olusiji samuel ayodele geology department ekiti state university, p. Geotechnical properties and geochemical composition of kaolin. These rocks are mostly metamorphic and belong to the precambrian basement rocks of southwestern nigeria, which itself is part of the basement rocks of nigeria fig. Geology and geotectonic setting of the basement complex rocks in south western nigeria. The study area within the ilesa schist belt of southwestern nigeria is covered by longitudes 4 0 30. Section map of nigeria showing the regional geology of anambra basin. Geological survey of nigeria agency has played an active role in the exploration for mineral deposits in nigeria. Pdf an overview of the geology and hydrogeology of. This book provides a detailed description of nigerias geology and mineral resources with the aim of promoting sustainable economic development of nigerias. Inset is map of nigeria showing ondo state modified from. The application of integrated geophysical methods in oil. The geology of parts of adamawa, bauchi and borno provinces explanation of 1. Within this belt, the individual pegmatite bodies generally trend in a ns direction. The conglomerates are imbricated and at some locations where ironstones occur nton and elueze, 2005.
The geology consists of precambrian rocks that are typical for the basement complex of nigeria 16. Geology and mineral resources of nigeria nuhu george obaje. It is separated from the niger delta by a submarine basement high referred to as the okitipupa ridge. A total of ten samples were collected for this study. The geology, geochemistry and petrogenetic studies of the. Geology, geochemistry and origin of the banded and granite. It is underlain by precambrian rocks of the southwestern nigeria archaean to lower proterozoic basement complex hubbard, 1975, rahaman, 1988, dada, 2006. Geotechnical properties of some selected beach sands in lagos. Geology and petrochemistry of the precambrian rocks. A rahaman, 4 conclusion geologically, the study area falls within the precambrian basement rocks of southwestern nigeria 5 with six major lithologic units namely. Quartzite, bandedgneiss, biotitegneiss, biotiteschist, quartzbiotite schist and pegmatite. Integrated geology and geochemical analysis of eruku. Ilesha area in southwestern nigeria to wamba area in jos plateau fig. Characterization and mineralization potentials of granitic.
The study areas are easily accessible by motorable roads and tracks while figure 2 showed the sampling locations of the beach sediments in the studied area. Geochronology of the precambrian basement rocks from lbadan southwestern nigeria. Joint application of ground penetrating radar and electrical. B 301 osun state nigeria 2department of physics olabisi onabanjo university, agoiwoye ogun state nigeria. Pdf abstract the nigerian basement complex has undergone polyphase metamorphism and polycyclic deformation during the late proterozoic and early. Geology of agoiwoye lies a few kilometers away from the contact between the basement complex and the sedimentary terrain as shown in figure 2a. This paper documents the results of our recent studies that were carried out in the iwaraja area and discusses the geology and structural development of the basement rocks in the area. Odeyemi intermediate rocks from older granite complexes. Granulometric analysis of the sandstone facies of the ise formation, southwestern nigeria henry y.
The application of integrated geophysical methods in oil sand. The general cover vegetation in idanre, especially at the base of ufeoke hills, is composed of herbaceous species, lianes, climbers and tree seedlings. An inventory of the geological, biological and cultural. Southwestern nigeria, consisting of conglomerates and grits at the base which is in turn overlain by coarse to medium grained sands with interbeded kaolinite. The geology of nigeria is dominated by crystalline and sedimentary rocks both occurring approximately in equal proportions woakes et al 1987. Of the goldbearing rocks around okemesiijero area, southwestern nigeria 1akanmu tumise 1oshin oyeyemi oyekunle olusiji samuel. Integrated geology and geochemical analysis of eruku basement complex, southwestern nigeria 1m. Pdf geology and geotectonic setting of the basement complex. Geological characteristics and petrographic analysis of. Structural geology of the basement complex rocks in. Samples of stream sediments were collected in some parts of iseyinoyan river schist belt, with a view to determining their elemental concentration and identifying geochemical anomalies associated with mineralization in the area. The geology of the basement complex of southwestern nigeria oyawoye 1964, rahaman 19176, odeyemi 1977 noted that the rocks in the study area show eveidence of polyphase deformation with the plutonic episode of the pan african event being the most pervasive. Publications of ngsa nigeria geological survey agency. Geochemistry and quality characterization of effon.
Sc 2 odunaike rasaki kola phd 3 fasunwon olusola o. Nigeria is a vast country with considerable wealth in natural resources and understanding nigeria s geology is critical for efficient exploration and exploitation of these resources. Ako 2 1department of applied geophysics, federal university of technology, akure, nigeria 2department of geology, obafemi awolowo university, ileife, nigeria accepted 03 september, 2012. Geology and geotectonic setting of the basement complex rocks. Geochemical signatures and mineralization potentials of. Earlier workers such as annor and freeth 1985, rahaman 1989, annor 1998, and caby 1989, caby and boesse 2001 show four distinct basement lithologies in the basement complex of nigeria. 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. Depositional facies and sequence stratigraphic study in parts of benin dahomey basin sw nigeria. The geology, stream sediment geochemical survey and ground. Grain size and depositional pattern of sediment from okeluse.
The geologic units consist of predominantly amphibolite schist with minor occurrences of coarse porphyritic biotite granite, quartzite and. 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. Geological mapping, petrological study and structural. Okunlola and oyedokun 2009 observed that the pegmatites of igbeti area in southwestern nigeria display tanb mineralization potential that is. Petrology and structural geology of lankpeshi area of. The geology, stream sediment geochemical survey and. The method of sampling adopted for this study is a spot sampling method. Journal of geology and mining research geochemical stream. Contains details on the geological units of nigeria and the associated mineral resources. 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. Madukwe department of geology, ekiti state university, adoekiti, ngeria email. Nigerian journal of basic and applied science june, 2017, 251. Phd 1department of science laboratory technology osun state polytechnic iree, p. Geology and mineral resources of the lower benue trough.
It is situated at the northern part of akoko edo local government of edo state, southwest nigeria, within the topographical map of 7, fig. Location of the study area and geology the study area is located in ibese, southwestern nigeria about km southwest 40 of abeokuta where quarrying activities have revealed rocks of diverse ages and lithologies within the basin figure1. The study area, geology hydrogeology the study area ekiti basement complex area is within the precambrianlower proterozoic basement complex terrain of southwestern nigeria 9,10. The geology of nigeria is dominated by crystalline and sedimentary rocks both. Palaeoclimatic evidences from the quaternary coastal. Nigeria is a vast country with considerable wealth in natural resources and understanding nigerias geology is critical for efficient exploration and exploitation of these resources. The geology of the iws region has been extensively discussed by oyinloye, adegbuyi et al. Geological setting and geophysical investigation on the studied area. Grain size and depositional pattern of sediment from. Badagry is a coastal town in lagos state, nigeria, and it is between the city of lagos and the border with benin at seme. The geological and structural evolution assessment of the basement complex rocks in iwaraja area, southwestern nigeria showed that the basement rocks comprise quartzites and quartzschists of the effon psammite formation, quartzmica schists, biotite schists, migmatitic gneisses, granitic gneisses, late and posttectonic granitic rocks including pegmatites, which have been subjected to two. Water quality evaluation of okemesi area, southwestern nigeria olusiji samuel ayodele department of geology, ekiti state university, p. Boboye1, adewale akinmosin2 1department of geology, university of ibadan, ibadan, nigeria 2department of geosciences, university of lagos, lagos, nigeria abstract. Nigeria lies very close to the equator, between latitude 4n and 14n and longitude 3e and 15e.
The area around the akure metropolis is underlain by four of the six petrological units of the basement complex of southwestern nigeria as identified by rahaman 1988. Geology and petrochemistry of the underlying lithologic units in ipoti, and okeila area, southwestern nigeria was carried out with the aim of evaluating the mineral potentials of the studied area. Ogun state southwestern nigeria 1 raimi adepoju mufutau m. Significant of geology and geophysical investigations in. Geology of southwest oregon southwest oregon has a rich, diverse, and complex geologic history. The basement complex rocks, concentrated on the southwestern and north central to. Implications on the reinterpretation of tertiary sedimentary successions. The structure and sequence of geological events in the basement. This book provides a detailed description of nigeria s geology and mineral resources with the aim of promoting sustainable economic development of nigeria s.
Geochemistry and quality characterization of effon psammite. The geology of nigeria, as detailed in kogbe 1989, is made up of three main rock groups. The basement complex in western nigeria in general, and in the ibadan area in particular. Akinade so, olisa o 2014 geochemical study of soils, road dust and stream sediments around ijebuode, southwestern, nigeria. The implication of subsoil geology in foundation failure using geotechnical methods. As such, petroleum is central to economy of nigeria, producing 80 percent of government revenues and 95 percent of export earnings. Journal of geology and mining research geochemical. American journal of engineering research ajer 2017 w w w. Geotechnical properties and geochemical composition of. Pdf the geological and structural evolution assessment of the basement complex rocks in iwaraja area, southwestern nigeria showed that the basement. The area covered by the southwestern nigeria basement complex lies between latitudes. The production of the journal is normally biannual 2 issues per volume in march and september.
Geological distribution of mineral resources in southwestern nigeria adekoya, j. Granulometric analysis of the sandstone facies of the ise. Nigeria has extensive natural resources and is the largest crude oil producer in africa and 20 billion barrels of reserves. The main rock types granitegneiss, which occupies most part of the eastern part. Pdf an overview of the geology and hydrogeology of nigeria. The lower benue trough like other sedimentary basins in nigeria is found to be endowed with mineral resources. The mineral resources so far reported in the trough by the geological survey of nigeria agency are discussed below.
Latitudes abstract this study evaluates the geochemistry and quality characterization in the effon psammite spring, southwestern nigeria. Local geology of the study area iworoko, are and afao ekiti lies within the basement complex of southwestern nigeria, and falls within the central part of ekiti state about 5kms away from the state capital ado ekiti, and is underlain by migmatitegneiss complex of precambrian age. An age range of neocomianalbian is assigned to this formation based on paleontological. Geology and geotectonic setting of the basement complex. Precambrian geology of nigeria including the southwestern nigerian basement complex. Petrological and geochemical evaluation of the paleocene. Review of the basement geology and mineral belts of nigeria. Please see wikipedias template documentation for further citation fields that may be required. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of part 2. Nigerias geological set up comprises a broadly sedimentary formation and crystalline basement complex see figure 1. It is separated from the niger delta by a subsurface basement high referred to as the okitipupa ridge. Structural geology of the basement complex rocks in iwaraja area, southwestern nigeria.
Geologic features in the region range from the ancient klamathsiskiyou mountains to the geologically young high cascade mountains. Its current title, journal of mining and geology adopted from the edition for 1966, was modified between 1982 and 1987, as the nigerian journal of mining and geology. Local geology of the study area the study area is dominated by granitegneiss, bandedgneiss and migmatitegneiss respectively. Geochemistry and petrology of guguruji amphibolites from. The flat topped mesas of the table rocks, with their own. Seismic refraction survey of tar sands deposits in ijebu east. Togo and the republic of benin to southwestern nigeria 1 as abstract the dahomey basin is an amalgamation of inlandcoastaloffshore basin that expanses from southeastern ghana through togo and the republic of benin to southwestern nigeria. The geology of parts of adamawa, bauchi and borno provinces explanation of. The geological and structural evolution assessment of the basement complex rocks in iwaraja area, southwestern nigeria showed that the basement rocks comprise quartzites and quartzschists of the effon psammite formation, quartzmica schists, biotite schists, migmatitic gneisses, granitic gneisses, late and posttectonic granitic rocks including. Pdf geology and geotectonic setting of the basement. Pdf structural geology of the basement complex rocks in. Bamenda massif, southeastern nigeria pegmatites exposed at agwan rimi, in north central nigeria, and concluded that the deposit holds high potential for tantalum mineralization.
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