Investigation of groundwater in parts of Ndokwa District in Nigeria using geophysical logging and electrical resistivity methods: Implications for groundwater exploration

Anomohanran, Ochuko; Ofomola, Merrious Oviri; Okocha, Fredrick Ogochukwu

doi:10.1016/j.jafrearsci.2016.12.008

Cited by 22 publications

(14 citation statements)

References 12 publications

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“…In this study, a geophysical survey using spontaneous potential and resistivity loggings (Anomohanran, Ofomola, & Okocha, ; Carrière, Chalikakis, Sénéchal, Danquigny, & Emblanch, ) was adopted to estimate the subsurface geological situation for a 400‐m‐long east/west section between points GW4 and GW5 (Figure ). The ABEM Terramater SAS 4000 was used with current electrode spacing at 3 m. The data obtained were manually curved matched to derive the values of the apparent resistivity and thickness.…”

Section: Methodsmentioning

confidence: 99%

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Assessing surface water–groundwater interactions in a complex river‐floodplain wetland‐isolated lake system

Zhang

et al. 2018

River Research & Apps

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Floodplain systems are most often hydrologically complex settings characterized by highly variable surface water–groundwater interactions that are subjected to wide‐ranging wetting and drying over seasonal timeframes. This study used field methods, statistical analysis, and the Darcy's law approach to explore surface water–groundwater dynamics, interactions, and fluxes in a geographically complex river‐floodplain wetland‐isolated lake system (Poyang Lake, China). The floodplain system of Poyang Lake is affected by strongly seasonal shifts between dry and wet processes that cause marked changes in surface water and groundwater flow regimes. Results indicate that wetland groundwater is more sensitive to variations in river levels than the seasonal isolated lakes. In general, groundwater levels are lower than those of the isolated lakes but slightly higher than river levels. Statistical analysis indicates that the river hydrology plays a more significant role than the isolated lakes in controlling floodplain groundwater dynamics. Overall, the river shows gaining conditions and occasionally losing conditions with highly variable Darcy fluxes of up to +0.4 and −0.2 m/day, respectively, whereas the isolated lakes are more likely to show slightly losing conditions (less than −0.1 m/day). Although seasonal flux rates range from 7.5 to 48.2 m/day for surface water–groundwater interactions in the floodplain, the flux rates for river–groundwater interactions were around four to seven times higher than that of the isolated lake–groundwater interactions. The outcomes of this study have important implications for improving the understanding of the water resources, water quality, and ecosystem functioning for both the river and the lake.

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Section: Methodsmentioning

confidence: 99%

“…In this study, a geophysical survey using spontaneous potential and resistivity loggings (Anomohanran, Ofomola, & Okocha, 2017;Carrière, Chalikakis, Sénéchal, Danquigny, & Emblanch, 2013) was adopted to estimate the subsurface geological situation for a 400-mlong east/west section between points GW4 and GW5 (Figure 1).…”

Section: Geophysical Investigationmentioning

confidence: 99%

Assessing surface water–groundwater interactions in a complex river‐floodplain wetland‐isolated lake system

Zhang

et al. 2018

River Research & Apps

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“…Water is described as the most indispensable natural resource which life depends on (Oladejo et al, 2013(Oladejo et al, , 2015Badejo et al, 2015;Akinrinade and Adesina, 2016;Anomohanran et al, 2017;Emenike et al, 2017). It can be obtained from the troposphere as rain, surface flow as rivers and streams, and subsurface flow as groundwater (Akinrinade and Adesina, 2016;Anomohanran et al, 2017). Rain and surface water are easily contaminated by human activities and at times insufficiently distributed for human use (Oladejo et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Hence, this study is aimed at using Vertical Electrical Sounding (VES) to establish drillable zone(s) for groundwater and recommend the appropriate depth to which boreholes can be sunk in the area to exploit an appreciable volume of water in the subsurface. This method has been the most widely used electrical resistivity array in groundwater investigation due to its ability to map the subsurface structures and lithologic variations at satisfactory depths (Anomohanran et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Groundwater Exploration in Aaba Residential Area of Akure, Nigeria

et al. 2018

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Groundwater plays a fundamental role in human life. Despite its indispensable characteristics, it is unfortunate that groundwater is often associated with low yield. The expanding demand for water and the cost involved in drilling boreholes therefore require the application and the proper use of groundwater investigation techniques to locate high yielding aquifers. A geophysical investigation involving an electrical resistivity method using a Schlumberger electrode array was conducted around Aaba residential area, a basement terrain of southwestern Nigeria. Sixteen Vertical Electrical Sounding (VES) stations were applied across the study area using a maximum current electrode separation of 100 m. The geoelectrical imaging from this study revealed that the lithologies are divided into topsoil, lateritic soil, Sandy clay/clayey sand/clay/weathered rock and the bedrock. Subsurface geoelectrical maps (overburden thickness, weathered layer isothickness, weathered layer isoresistivity, bedrock relief, bedrock resistivity, and correlations from geoelectric sections) were used to generate information about the groundwater potential of the study area. It was inferred that the eastern (VESs 1, 2, 8, 10, and 11) and the southwestern (VESs 13 and 14) regions are associated with high groundwater yield. Boreholes can be drilled to an average depth of 22.0 m (72.6 ft) on these axes. The groundwater potential of the northern (VES 5), central (VES 9), and southern (VES 12) parts of the study area were inferred to be of medium potential. The borehole drilling along these axes can be extended to the depth of 30.0 m (99.0 ft), with medium groundwater yield. However, the northeastern (VES 3 and VES 4) and the western (VESs 6, 7, 15, and 16) zones are characterized by low groundwater potential. This present study has been able to detect the drillable zones and depths for optimum groundwater yield in a crystalline terrain of Aaba residential area, Akure using VES. The resistivity sounding is efficient in characterization of aquifers for groundwater exploration.

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“…The effect of climate change among other factors on the hidden earthly mineral resources cannot be overemphasized (Bates et al, 2008;Mogaji et al, 2013). Such effect had caused severe stress on the often available surface water particularly in a crystalline basement complex geologic terrain causing its paucity resulting from its dried up during dry season and degrading of surface water quality status via air pollution etc (Anomohanran et al, 2017). But then, for the reasons of all kinds of domestic, agricultural and industrial water demands, the inadequacies of surface water resource are largely met by groundwater supplies (Machiwal and Singh, 2015;Srivastava et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Modeling of geoelectric parameters for assessing groundwater potentiality in a multifaceted geologic terrain, Ipinsa Southwest, Nigeria – A GIS-based GODT approach

Mogaji

Omobude

2017

NRIAG Journal of Astronomy and Geophysics

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Modeling of groundwater potentiality zones is a vital scheme for effective management of groundwater resources. This study developed a new multi-criteria decision making algorithm for groundwater potentiality modeling through modifying the standard GOD model. The developed model christened as GODT model was applied to assess groundwater potential in a multi-faceted crystalline geologic terrain, southwestern, Nigeria using the derived four unify groundwater potential conditioning factors namely: Groundwater hydraulic confinement (G), aquifer Overlying strata resistivity (O), Depth to water table (D) and Thickness of aquifer (T) from the interpreted geophysical data acquired in the area. With the developed model algorithm, the GIS-based produced G, O, D and T maps were synthesized to estimate groundwater potential index (GWPI) values for the area. The estimated GWPI values were processed in GIS environment to produce groundwater potential prediction index (GPPI) map which demarcate the area into four potential zones. The produced GODT model-based GPPI map was validated through application of both correlation technique and spatial attribute comparative scheme (SACS). The performance of the GODT model was compared with that of the standard analytic hierarchy process (AHP) model. The correlation technique results established 89% regression coefficients for the GODT modeling algorithm compared with 84% for the AHP model. On the other hand, the SACS validation results for the GODT and AHP models are 72.5% and 65%, respectively. The overall results indicate that both models have good capability for predicting groundwater potential zones with the GIS-based GODT model as a good alternative. The GPPI maps produced in this study can form part of decision making model for environmental planning and groundwater management in the area.

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Investigation of groundwater in parts of Ndokwa District in Nigeria using geophysical logging and electrical resistivity methods: Implications for groundwater exploration

Cited by 22 publications

References 12 publications

Assessing surface water–groundwater interactions in a complex river‐floodplain wetland‐isolated lake system

Assessing surface water–groundwater interactions in a complex river‐floodplain wetland‐isolated lake system

Groundwater Exploration in Aaba Residential Area of Akure, Nigeria

Modeling of geoelectric parameters for assessing groundwater potentiality in a multifaceted geologic terrain, Ipinsa Southwest, Nigeria – A GIS-based GODT approach

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