Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Comments | Subsequently, some of these sedimentary rock layers experienced … CSS Bookshop Ltd., Lagos, 1-565. has been cited by the following article: TITLE: Heavy Minerals and Geochemical Characteristics of Sandstones as Indices of Provenance and Source Area Tectonics of the Ogwashi-Asaba Formation, Niger Delta Basin (2013) Geology of Nigeria’s Sedimentary Basins. [2] : 2 [3] : 25 [1] : 153 It is a nearly triangular shaped embayment covering about 3000 km 2 with a total sedimentary thickness of approximately 9 km. Home | | An improved understanding of the paleogeographic evolution is essential … Geologically, Nigeria comprises crystalline basement rocks and sedimentary basins, almost in equal proportions. Unlike other sedimentary basins in Nigeria, it is characterized by the absence of volcanics, carbonates and rocks of Tertiary age. the West and Central African Rift Systems) remains enigmatic owing to poor subsurface data coverage and quality. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 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. Sitemap | OCTOBER 2014. The former forms what is commonly referred to as the Basement Complex of Nigeria where the latter forms the sedimentary terrain (sedimentary basins). Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of Part 2. Latest Nigeria Articles | A description of the existing stratigraphy of the basin are made as follows: 2.1. The three sedimentary basins in Nigeria are underlain by continental crust except in the Niger delta, where the basement rock is interpreted to be oceanic crust. Part 3 presents the mineral resources of Nigeria, their geological environment, mode of occurrence, localities and where possible their estimated reserves. The Basement Complex, which is Precambrian in age, is made up of the Migmatite-Gneiss Complex, the Schist Belts and the Older Granites. About us | | The geology of Nigeria as described by Obaje [1], comprises of three litho-petrological components, which are: Basement complex, the Younger Granites, and Sedimentary Basins. 1). Sketch map of Benue Trough. Nwajide, C.S. Contact us | | Commercial hydrocarbon accumulations have recently been Figure 1 Geological map of Nigeria showing the inland basins and sample localities. is a conscious effort by Federal Government of Nigeria to carry out integrated exploration to reduce risk to the mining investor and provide geoscience data. [1] The sediment fill has a depth between 9–12 km. The three sedimentary basins in Nigeria are underlain by continental crust except in the Niger delta, where the basement rock is interpreted to be oceanic crust. However, the sedimentary successions in these basins are broadly divisible into: (2) middle marine shales and limestones interbedded with sandstones and siltstones; (3) upper sandstone sequence that is conti- nental or paralic. How magmatism in these basins related to the opening of the South Atlantic is thus poorly understood. A new geological map was made for the basin and a revision of the lithostratigraphic succession shown in a cross section across the map. Sedimentary succes- sions in these basins are of middle Mesozoic to Recent age. The Younger granites which are predominantly magmatic The recent ambush on oil exploration team in the North-East Nigeria by Boko Haram has put a damper on the nation’s drive to tap its highly underexplored inland basins, industry experts have said. Contains details on the geological units of Nigeria and the associated mineral resources. Older sedimentary deposits were not preserved, probably because during the Paleozoic - early … Looks like you’ve clipped this slide to already. INTRODUCTION The Benue troughisa sedimentological featureinthe evolutionof the CretaceousandTertiary geologyof Nigeria.Itisalso a marine basin. Although a tripartite subdivision is also applicable to the Niger Delta, this sequence has been growing seaward with lower marine shales grading through thick ancient coastal sandstones and shales, into an upper continental sequence. Falconer (1911) described the ‘Lokoja series’ from various locations around the basin as a shallow water accumulation of … Lagos lies on the Dahomey Geological Basin of Western Africa, which is situated just West of the Niger-Delta basin. See our Privacy Policy and User Agreement for details. Sitemap XML, Non-Metallic Mineral and Industrial Materials. The ages of the basement rocks span Precambrian to early Palaeozoic, having been consolidated during the Pan-African. Most of the wells that penetrated the basement are in the Eastern Dahomey embayment of western Nigeria. While road construction and maintenance are compara- tively cheaper on basement terrain, the sedimenta- … The Objective of NIMEP is to reduce investors … SEDIMENTARY BASINS IN NIGERIA: BENUE TROUGH If you continue browsing the site, you agree to the use of cookies on this website. The Sedimentary Basins comprises of 7 inland basins namely the Niger Delta, the Anambra Basin, the Benue Trough, the Chad Basin, the Sokoto Basin, the Bida-Nupe Basin and the A review on the geology and petroleum potentials of the Nigerian Benue Trough and Anambra Basin is done to identify potential petroleum systems in the basins. (Adopted from Mukhtar and Xie, 2012) . It is part of the broader West and Central African Rift System. Tags | A … OnlineNigeria.com 1998 - document.write(new Date().getFullYear()) © All rights reserved. Numerous workers have worked extensively on different aspects of these rocks and only the key authors will be cited in this paper. Engineering Geological Investigation of a Proposed Construction Site Area of Adekunle Ajasin University Sport Complex, Akungba-Akoko, Southwestern Nigeria Using Electrical Resistivity Article Oct 2016 In Nigeria, the dominant type of basement rock intersected by wells drilled for hydrocarbons, limestone, or water is granite. The fairly … It ispart of the broaderCENTRAL AFRICAN RIFTSYSTEM. Nigeria is underlain by seven major sedimenta- ry basins, viz: (from the oldest), the Calabar Flank, the Benue Trough, the Chad Basin, SE lullem- menden (Sokoto) Basin, the Dahomey Basin, and the Niger Delta Basin. New assessment for Central Nigeria's Bida basin highlights geological prospects The Bida basin is the least studied of all Nigeria's inland frontier basins. Large sedimentary basins formed in southern Nigeria, divided by the Okitipupa Ridge. See our User Agreement and Privacy Policy. Geological mapping was carried out and outcrop sections were examined alongside palaeocurrent directions from the greater part of the Campano-Maastrichtian outcrops in the Gongola Basin in Nigeria. Africa Groundwater Atlas: Hydrogeology of Nigeria. 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. Most of the wells that penetrated the basement are in the Eastern Dahomey embayment of western Nigeria. In the southeast, poorly bedded sandy shale alternates with layers of sandstone and sandy limestone, containing ammonite, radiolarian, echinoid and gastropod fossils. Kurowska and Schoeneich 2 Figure 1: Geological setting and location of the major structural units in Nigeria. News | | The middle ancient coastal sediments are oil-and gas-bearing. These mineral deposits were formed at different stages in the geological evolution of Nigeria. Nigeria is underlain by seven major sedimenta- ry basins, viz: (from the oldest), the Calabar Flank, the Benue Trough, the Chad Basin, SE lullem- menden (Sokoto) Basin, the Dahomey Basin, and the Niger Delta Basin. Bibliographic reference: Tijani, M., Crane, E., Upton, K., Ó Dochartaigh, B.É. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. 2018. It addresses the controversies regarding potential pathways of ingression during transgressive episodes that led to the establishment of the Trans-Saharan seaway. and Bellwood-Howard,I. It has a subaerial area of about 75,000 km 2 , a total area of 300,000 km 2 , and a sediment fill of 500,000 km 3 . It may be … The structure of igneous plumbing systems in circum-South Atlantic, intra-continental rift basins (e.g. The Basement Complex of Nigeria is made up of crystalline (igneous and metamorphic) rocks which are so… The basins did not begin to fill with sediment until the Albian age of the Cretaceous. A WINDOW INTO THE Detailed geological map of the study area (Upper Benue Basin, Northeastern Nigeria). You can change your ad preferences anytime. Lokoja area 2.1.1. Adapted from Carter et al. Now customize the name of a clipboard to store your clips. A maximum thickness of … If you continue browsing the site, you agree to the use of cookies on this website. This contribution presents a comprehensive review of the Upper Cretaceous geological evolution of Nigeria focusing on the Benue Trough and adjacent basins. The basins, interpreted partially as troughs and rifts, were subjected to synsedimentary tectonic deformations during Cretaceus to Neogene times and affected by magmatic – volcanic episodes, which resulted in present structural pattern. Archive | Location. The Benue Trough is a major geological formation underlyingalarge partof Nigeriaandextendingabout1,000 km northeastfromthe Bightof Benin to Lake Chad. Articles XML | 1. (1963). Sedimentary succes- sions in these basins are of middle Mesozoic to Recent age. The Basement complex which consists of the Migmatite-Gneiss Complex, the Schist Belts and the Older Granites, is Pre Cambrian in age. Part 1 discusses the geology of the crystalline rocks and their regional distribution while the sedimentary basins constitute the subject of Part 2. Geological background. The programme in its design took advantage of the known metallogenic belts in the country and ensured the use deep information, knowledge and skills residing in the government institution for the execution. Academia.edu is a platform for academics to share research papers. The Bida Basin located at central Nigeria is one of the hinterland sedimentary basins in Nigeria and made up of sedimentary fill of about 3.5 km (Ojo 1984; Udensi and Osazuwa 2004).It is a northwest–southeast trending intracratonic structural depression adjacent to and contiguous with Sokoto and Anambra Basins in the northwest and southeast, respectively (Fig. Lokoja Sandstone. British Geological Surve… Nigeria is endowed with diverse of rock types, both crystalline (igneous and metamorphic) and sedimentary rocks. Professor Moshood N. Tijani, Department of Geology, University of Ibadan, Nigeria Emily Crane, Kirsty Upton, Brighid Ó Dochartaigh, British Geological Survey, UK Imogen Bellwood-Howard, Institute of Development Studies, UK Please cite this page as: Tijani, Crane, Upton, Ó Dochartaigh and Bellwood-Howard, 2018. Privacy Policy | The book is divided into three parts. The sedimen- tary basins are of Cretaceous to Recent age. GROUP V (2014/2015) It was subsequently recorded from the Upper Albian and Cenomanian of Brazil by Herngreen (1973, p. 553) imparting to it a composite range of Upper Albian to Coniacian. The occurrence of groundwater in Nigeria is dependant primarily on the geology, and groundwater regions can be classified accordingly. BENUE TROUGH Nigerian basins are broadly divisible into coastal Calabar Flank, Niger Delta, Dahomey Basin and interior basins (Benue Trough, Chad Basin, Nupe Basin, SE lullemmeden Basin). [2] It is composed of several different geologic formations that indicate how this basin could have formed, as well as the regional and large scale tectonics of the area. Nigeria is endowed with abundant mineral resources including gold, iron, lead, zinc, rare metals (SnNbTa), coal and gemstones which could be harnessed for its development. Both basins are of course low lying, as expected of a basin. The geology of Nigeria is made up of three major litho-petrological components, namely, the Basement Complex, Younger Granites, and Sedimentary Basins. Coniacian of Senegal by Jardin6 and Magloire (1965) as Multiporopollenites sp. Older sedimentary deposits were not preserved, probably because during the Paleozoic - early Mesozoic, what is now Nigeria was a broad regional basement uplift, with no major basin subsi- dence for sediment accumulation. The Niger delta basin is one of the largest subaerial basins in Africa. 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