ABSTRACT Geotechnical evaluation of sub grade and subbase materials from Redemption camp and Igbesa and Ijuri area within the sedimentary terrain of Eastern Dahomey basin of South-Western Nigeria were analyzed for their physical and engineering properties required for construction purposes. Total of 13 soil samples were taken, 6 from the location Redemption Camp and 7 from Igbesa and Ijuri area for analysis. The physical characteristics such as Grain Size, Specific Gravity, Moisture Content,...
ABSTRACT The main aim and objective of the project is to evaluate the foundation soils along atan-agbara road as highway subgrade and sub-base material, to determine the geotechnical basis (if any) for the observed failure cases as studied. The methodology stage involves; Field investigation which entails Desk study stage and Reconnaissance survey and sampling. The samples were collected at different depths from the burrow pit in the study area, naming it TA, TB and TC. This samples are then...
ABSTRACT Among the major lithostratigrahic units making up the Bida Basin are the lokoja and Patti formation overlain by the Agbaja Ironstone.
ABSTRACT Exploration activities have intensified in the Tano basin following the discovery of oil and gas in commercial quantities at the Jubilee fields. The analogue Accra-Keta Basin is still under explored but found to be highly prospective. In this context, this research utilized a twenty (20) two dimensional (2D) seismic line and well data comprising of gamma ray log, density log, sonic log, spontaneous potential and resistivity logs. These data sets were used to evaluate the hydrocarbon ...
ABSTRACT The hydrogeochemical data of groundwater and surface water of Vea dam water of the Bongo District in the Upper East Region of Ghana were examined to determine the main factors controlling the groundwater chemistry and the resultant water type formed in order to determine the suitability of the water for different uses. Conventional graphical methods combined with multivariate statistical analysis are the main methods applied to groundwater and surface water hydrochemical and stable ...
ABSTRACT Variation in groundwater chemistry and isotopic composition has been observed in the northern part o f the Volta Region. The geology o f the study area consists o f quartz schist, quartzitic sandstone, shales, mudstones and siitstone. The extent to which the water chemistry and isotopic composition has been affected by geology is however not known. This study therefore seeks to determine the general chemical character of the groundwater in relation to the different lithologies and de...
ABSTRACT This study describes and identifies palynomorphs (spore/pollen and dinoflagellates) from different levels of the CTP-1 well succession in the offshore Tano Basin in order to establish palynostratigraphy of the studied sediments. The palynomorphs are used as an age tool for the sediments after comparison with other species or sediments reported from other parts of the world, especially the North Gondwana Province (ASA) region. Sedimentary Organic Matter is used to establish palynofaci...
ABSTRACT The Agbowo-Orogun area of Ibadan, which is within the basement complex of southwestern Nigeria, is underlained by banded gneiss of the migmatites-gneiss complex. A total of thirty-five water sample?., made up of thirty-two from groundwater and three from surface water, were analyzed for their physico-chemical characteristics with the aim of assessing their quality and usability.
ABSTRACT This study presents the mineralogical, textural and geochemical characteristics of the regional Maastrichtian Ajali Sandstone in Anambra Basin, SE Nigeria. The intent is to highlight possible constraints on the chemical weathering conditions of the source materials on one hand, and to infer the provenance on the other hand. The investigation approach involved field studies and collection of samples from 12 different outcrop locations, followed by laboratory studies involving grain-si...
Abstract In the Ibokun area of the Ilesha schist belt of southwestern Nigeria, the dominant rock types are granite gniess and amphibolite. The granite gneiss is medium to coarse grained, with lineation marked by alignment of biotite and microcline porphyroblasts. The amphibolite is commonly massive to weakly foliated, consisting to bluish-green to yellowish-green to sheaf-like aggregate of hornblende set in a fine grain matrix of tabular plagioclase. A total of 25 water samples, obtained from...
Integrated sedimentological and geochemical studies have been carried out on the sediments of the Lokoja and Patti Formations within the southern Bida Basin with a view to deducing the provenance, palaeodepositional characteristics and tectonic history of the sediments. Field observations show that the Lokoja Formation is made up of conglomerates, coarse to medium grained sandstone and claystone while the Patti Formation consists of medium – fine grained sandstone, claystone, shale, siltsto...
ABSTRACT The Dahomeyide suture zone marks continental amalgamation between the Paleoproterozoic West African Craton (WAC) and the Sahara Metacraton (SMC). This suture zone of the PanAfrican orogenic belt is encrusted by UHP/HP metamorphic rock bodies and associated ultramafic igneous plutonic rocks in SE Ghana through to Togo and Benin. The main identified rock types consist of mafic granulites (hornblende-garnet-pyroxene gneiss and pyroxenegarnet-hornblende gneiss), felsic gneiss, eclogite a...
ABSTRACT The Quaternary aquifer in the Keta basin is a source of fresh water to the over 130,000 inhabitants living along the Keta Strip. Groundwater quality is deteriorating due to pollution from mainly agriculture, sewage, septic tanks and solid waste disposal in the area. This research was undertaken to assess the intrinsic vulnerability to pollution of the aquifer. The DRASTIC methodology was applied to delineate zones vulnerable to pollution. Data was gathered on the seven DRASTIC parame...
The growing demand for potable water supply has been a major challenge in Ado-Ekiti, Southwestern Nigeria. Delivery of good quality water by the Ekiti State Water Board to individual consumers in the required quantity and under satisfactory pressure is suspect. Even in areas that are supposedly served by piped water, the supplies to homes are extra-ordinarily intermittent in flow. This inevitably undermines the confidence of consumers, resulting to complaints and possibly the use of water fro...
ABSTRACT Geological mapping and geochemical analysis of rock samples were made on pit rocks from Obuem Mining Concession found within the Birimian of Ashanti Belt of Ghana, in order to determine the nature of gold mineralisation. The study area consists of metavolcanics and metasediments with few intrusions of granitoids. Metasediments such as phyllites and schists as well as metavolcanics of andesitic and basaltic origin were sampled and analyzed for their major and trace element contents us...