scholarly journals Geophysical Investigation of Groundwater Using Vertical Electrical Sounding in Mubi and Maiha Local Government Areas of Adamawa State, North Eastern Nigeria

2021 ◽  
pp. 58-76
Author(s):  
S. Kasidi ◽  
V. Victor
Keyword(s):  
Local Government ◽  
Field Data ◽  
Research Work ◽  
Computer Software ◽  
Underground Water ◽  
Groundwater Potential ◽  
Geophysical Investigation ◽  
Electrical Resistivity Survey ◽  
Resistivity Model ◽  
Electrical Sounding

This research work is aimed electrical resistivity survey for groundwater development conducted in Mubi and Maiha local government area of Adamawa State, in order to delineate the groundwater potential zones and determining the depth and thickness of sediments layers, and recommend suitable depth for drilling. Fourteen vertical electrical soundings (VES) were carried out within the study area using Schlumberger electrodes configuration was used for the field data acquisition. The field data obtained was analyzed using IX1D computer software and, VES1-14 resistivity model indicate 3-4 layered earth models. The interpretation shows positive inference in terms of a well-defined weathered basement and as such, it is likely to possess requisite hydro-geological characteristics that could supply underground water in fair quantity to well when drilled. Therefore, VES number denoted (R) are recommended for drilling at approximate depths of 40±5 to 50±5 meters.

scholarly journals GEOPHYSICAL INVESTIGATION OF GROUNDWATER POLLUTION RESULTING FROM LEACHATE FLOW AT IKOTO AND ORU DUMPSITES IN OGUN STATE OF NIGERIA

2020 ◽  
Vol 6 ◽  
pp. 1
Author(s):  
Adetoro Temitope Talabi ◽  
Taiwo Olakunle Roy-Layinde ◽  
Rasaki Kola Odunaike ◽  
Hamid Titilope Oladunjoye ◽  
Aina Opeyemi Adebanjo
Keyword(s):  
Groundwater Pollution ◽  
Health Hazard ◽  
Subsurface Layer ◽  
Groundwater Table ◽  
Electrode Spacing ◽  
Geophysical Investigation ◽  
The Road ◽  
Ogun State ◽  
Electrical Resistivity Survey ◽  
Electrical Sounding

An electrical resistivity survey was carried out to detect the level of groundwater pollution on Oru and Ikoto dumpsites respectively as it was observed that the dumpsites were sited ignoring the environmental and health hazard. The survey was conducted using ABEM model terrameter with schlumberger array for 1-D vertical electrical sounding (VES) of electrode spacing ranging from 0.25m to 4m. Four VES was conducted on each dumpsite with length between 1m to 120m. The data obtained from the field were interpreted using WINRESIST from which the curve types of each study area were identified. On Oru dumpsite, measurement of VES1 was taken on the dumpsite, VES2 was taken 20m away from the dumpsite, VES3 and VES4 were taken across the road serving as control. Here, there is indication of leachate pollution in VES1 (layer 2) and VES2 (layer 3) while VES3 and VES4 are leachate free, but this leachate present in VES1 and VES2 cannot penetrate into the groundwater table because of the stratigraphy of the area.  At Ikoto dumpsite, measurement of VES4 was taken on the dumpsite, VES1 and VES2 were taken 30m away from the dumpsite on both sides, and while VES3 was taken across the Lagos/Ibadan expressway, serving as control. There is indication of leachate pollution in VES4 (layer2) while in VES1, VES2 and VES3 there is no presence of leachate flow. The leachate present in VES4 can infiltrate into the groundwater table through the highly porous and permeable material in the subsurface layer of the location.

Mapping of groundwater potential using integrated geophysical techniques at forestry research institute of Nigeria, Ibadan, South Western Nigeria

2021 ◽  
Vol 20 (1) ◽  
pp. 125-140
Author(s):  
J.O. Coker ◽  
A.O. Atilade ◽  
A.A. Alabi ◽  
D.S. Ebeniro ◽  
G.O. Layade
Keyword(s):  
Computer Software ◽  
Groundwater Potential ◽  
Survey Techniques ◽  
Geological Features ◽  
Electrical Sounding ◽  
Potable Water Supply ◽  
Integrated Geophysical Survey ◽  
2D Resistivity ◽  
Wenner Array ◽  
Research Institute

Water is an essential commodity for life survival on Earth. Groundwater exists below the surface in the soil pores, fractures within rocks, fissures, and other weak geological features or zones. The aim of this research was to delineate groundwater potential within the Forest Research Institute of Nigeria (FRIN) and hence determining the possible areas suitable for siting borehole for sustainable potable water supply. Four electromagnetic traverses were carried out and ten vertical electrical sounding (VES) points were identified for detailed probing using the Schlumberger configuration. Wenner array survey was also carried out along two traverses. The VES data collected was processed using curve matching and Computer software called Winresist while Wenner array was processed using RES2DINV. The results from the interpretation of the four (4) EM profiles revealed low conductivity zone with a value ranging from 4.6 to 19.7 mS m.-1 The results of VES give a maximum of four subsurface geoelectrical layers with five curve types, which are K, Q, AK, HK, and KH. The weathered basement has a resistivity value ranging from143.8 to 450 Ωm and depth to basement ranging between 13.9 m and 39.4 m. The interpretation of the ten VES points obtained suggested that three VES points (VES 2, 5, and 7) are suitable for borehole drilling. The results of the 2D resistivity value ranges from 17.5 to 747 Ωm with a varying depth between 3.25 and 15.9 m. The results of the integrated geophysical survey techniques have proven to be an effective method for groundwater delineation in the study area. Keywords: Aquifer, Borehole, Electromagnetic, Geoelectric, and Groundwater

Evaluation of Groundwater in Udi L.G.A. in Enugu State, Nigeria

2021 ◽  
Author(s):  
Minaibim E. Abbey ◽  
Dennis E. Onyebueke ◽  
Godspower O. Ashaka ◽  
Chikanso K. Ezeife
Keyword(s):  
Apparent Resistivity ◽  
Groundwater Potential ◽  
Survey Area ◽  
Geophysical Investigation ◽  
Vertical Electrical Soundings ◽  
Geological Formation ◽  
Electrical Sounding ◽  
Electrical Soundings ◽  
Enugu State ◽  
Software Information

Abstract Groundwater has remained indispensable in Enugu state Nigeria owing to industrialization, lack of surface water, and significant depth to aquifer in the area. A geophysical investigation involving vertical electrical soundings was conducted in order to evaluate groundwater potential at some locations in the Udi Local Government Area of Enugu State. With the aid of resistivity instrument ABEM Terrameter, four (4) Vertical Electrical Sounding using Schlumberger configuration were conducted, and the data acquired was interpreted using WINRESIST software. Information obtains from the survey shows that the underlying geological formation in those areas has between 5 – 7 layers. The apparent resistivity obtained in all the layers of the locations ranges from 47.1 – 6956.8 Ωm, while the aquifer was interpreted to exist at a depth between 90 – 120m. Result obtained from this geophysical investigation has shown that the survey area possesses a good groundwater potential which will go a long way in cushioning the effect associated with water scarcity in the area if exploited.

scholarly journals Geoelectrical investigation of groundwater potential and vulnerability of Oraifite, Anambra State, Nigeria

2020 ◽  
Vol 10 (10) ◽  
Author(s):  
Joy O. Eugene-Okorie ◽  
Daniel N. Obiora ◽  
Johnson C. Ibuot ◽  
Desmond O. Ugbor
Keyword(s):  
Groundwater Potential ◽  
Aquifer Vulnerability ◽  
Southeastern Nigeria ◽  
Anambra State ◽  
Contour Maps ◽  
Average Value ◽  
Electrical Resistivity Survey ◽  
Transverse Resistance ◽  
Electrical Sounding ◽  
Dar Zarrouk Parameters

Abstract Electrical resistivity survey employing vertical electrical sounding was carried out in Oraifite, Southeastern Nigeria, involving a total of twenty soundings across, in order to assess the groundwater potential and the aquifer vulnerability in Oraifite. The field data were interpreted using the WINRESIST software, and the resulting geoelectric curves give the resistivities, depths and thicknesses of each geoelectrical layer. Dar Zarrouk parameters and aquifer transmissivity were computed using the values of aquifer resistivity and thickness. From the results, variations of the computed parameters were observed. Aquifer resistivity ranges from 420.1 to 27,585.8 Ωm having an average value of 4906.3 Ωm, while its thickness varies from 13.4 to 93. 9 m. Longitudinal conductance varies from 0.0015 to 0.2136 Ω−1, transverse resistance ranges from 29,388.88 to 1,158,604.0 Ωm2, while the transmissivity varies from 1.1692 to 123.7905m2/day. The contour maps reveal the distributions of these parameters, which help in delineating zones with different layer characteristics. The result from this study can be a reference for decision making in the abstraction and management of groundwater repositories.

Surficial geophysical deduction of the geomaterial and aquifer distributions at Ngor-Okpala local government area of Imo State, South Eastern Nigeria

2011 ◽  
Vol 3 (4) ◽  
Author(s):  
Obianwu Victor ◽  
Chimezie Innocent ◽  
Akpan Anthony ◽  
George Jimmy
Keyword(s):  
Local Government ◽  
Groundwater Potential ◽  
Local Government Area ◽  
Coarse Grained ◽  
Depth Range ◽  
Borehole Data ◽  
River Sand ◽  
Soil Medium ◽  
Imo State ◽  
Electrical Sounding

AbstractTwenty seven vertical electrical sounding (VES) profiles surrounding four known traverses were obtained in Ngor-Okpala local government area of Imo state to examine the subsurface geomaterials and the associated groundwater potential. The VES data, constrained by borehole data, provided useful information about the subsurface hydrogeologic and lithologic conditions. From the validated interpretation, the area assessed has loamy soil, medium grained sands, well-sorted medium-grained/gravelly sands and river sand as the lithologic succession from top to the bottom of the depth penetrated. The aquifers in the area were found in the medium-grained sands and well-sorted medium-coarse-grained sands. The aquifer depth for all-season groundwater that would be devoid of draw-down can be found at a depth range of 42–50 m. The resistivity maps of selected depths exhibit sharp resistivity changes at depth due mainly to undulating subsurface topography. A map of the distribution of the kσ-values shows that good quality groundwater can be found in most parts of the area.

scholarly journals ELECTRICAL RESISTIVITY SURVEY FOR GROUNDWATER POTENTIAL AND ESTIMATION OF CLAY DEPOSIT IN ARAGBA-OKPE, OKPE LOCAL GOVERNMENT AREA, DELTA STATE NIGERIA

10.23856/3105 ◽  
2018 ◽  
Vol 31 (6) ◽  
pp. 52-66
Author(s):  
Julius Otutu Oseji ◽  
James Chucks Egbai
Keyword(s):  
Electrical Resistivity ◽  
Water Supply ◽  
Groundwater Potential ◽  
Electrical Resistivity Survey ◽  
Resistivity Survey ◽  
Sustainable Water Supply ◽  
Electrical Sounding ◽  
Electrical Soundings ◽  
Local Geology ◽  
Dar Zarrouk Parameters

 Electrical resistivity survey employing Vertical Electrical Sounding techniques of Schlumberger arrangement were carried out at seven (7) fairly distributed stations with 154 Vertical Electrical Soundings in Aragba-Okpe. The data obtained from the field were plotted on a log-log graph and interpreted qualitatively by inspection and quantitatively by partial curve matching. The results obtained were improved with the aid of computer iteration using the Winresist Software to delineate the thickness and depth of each layers as well as the resistivity value. These layers were grouped together in to geologic depth intervals known as the Geoelectric sections for interpretations. Using knowledge of both the local geology of Aragba-Okpe and the resistivity of the layers, the Geoelectric sections were interpreted. The study revealed that boreholes for sustainable water supply could be drilled to a depth of 30 m in Aragba-Okpe, However, the fifth layer within Aragba Primary School, Aragba Secondary School and Oviri Aragba Road (VES 1, 5 and 7) are the best locations for sustainable water supply The overburden protective capacities of the aquifer in Aragba-Okpe were evaluated using the Dar-zarrouk parameters. The result also revealed poor aquifer protection ratings of less than 0.1 in all the stations. The groundwater in Aragba-Okpe is therefore not protected and prone to contamination in the event of pollution.

scholarly journals Evaluation of groundwater potential using aquifer characteristics on parts of Boki Area, South- Eastern Nigeria

2021 ◽  
Vol 19 (1) ◽  
pp. 93-104
Author(s):  
Anthony A. Ugbaja ◽  
God'swill A. William ◽  
Uduak A. Ugbaja
Keyword(s):  
Specific Capacity ◽  
Pumping Test ◽  
Groundwater Potential ◽  
Groundwater Potential Zone ◽  
Potential Zone ◽  
Static Water ◽  
Resistivity Model ◽  
Electrical Sounding ◽  
Aquifer Characteristics ◽  
Isopach Map

Vertical Electrical Sounding (VES) and pumping test (constant discharge and recovery test) was carried out in parts of Boki Local Government Area to evaluate the groundwater potential, using aquifer characteristics of the study area. Sixteen (16) VES point was employed for this study using the Schlumberger array, with a maximum spread of 400- 600m. The stimulated result from the field data shows 3-5 layers resistivity model with the following curve types A, AK, KH, KHA, QH, QHA and QHK. The geoelectric properties include resistivity of the various layers ranging from 33.58 - 2.29 x 105Ώm, thickness from 0.2 - 50.2m, depth to basement varies from 2.99 - 74.60m across the study area. The litho logs show a top layer comprising of laterite, gravel/gravelly sand and intercalations of siltstones, the layers underneath are made-up of clay, weathered basement containing migmatites and gneisses, fractured and unfractured basement are made up of granitic and metamorphic rocks. The weathered and fractured layers constitute the aquiferous layers in the study area. Hydraulic parameters show transmissivity (T) range of 4.1x 10-5 - 1.92 x 10-1 m 2/day, specific capacity (SC) ranges from 2.09-21.42m2 /day, hydraulic conductivity (K) varies from 2.6 x 10-5 - 3.0 x10-3m/day and mean static water level (SWL) of 7.39m. Iso resistivity map of saprolite, fractured basement map, isopach map and the transmissivity map show that the studied area falls within the low-moderate groundwater potential zone.

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