Application of surface geophysics to ground-water investigations

Zohdy, Adel A.R.; Eaton, Gordon P.; Mabey, Don R.

doi:10.3133/twri02d1

Cited by 127 publications

(7 citation statements)

References 14 publications

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“…The initial thicknesses and resistivities of the layers were determined by performing partial curve matching on the smoothed curves (Zohdy et al, 1974). The initial parameters were utilized as inputs in the computer-aided interpretation conducted with the assistance of the WIN-RESIST computer software application, with the borehole lithological logs serving as controls.…”

Section: Ves Data Acquisition Analysis and Interpretationmentioning

confidence: 99%

Utilizing Geological and Geoelectrical methods in a GIS-based DRASTIC model of the Probable Groundwater Vulnerability in the Southern Nigerian Raffia Metropolis of Ikot Ekpene and its Surroundings

Ikpe,

Inyang,

Sampson

2024

VEETHIKA

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The city of Ikot Ekpene is facing a significant issue with groundwater contamination. This is due to the rising amount of home and industrial waste caused by the increasing human population and various business operations in the area. This study seeks to evaluate the susceptibility of groundwater in the metropolis of Ikot Ekpene and its surrounding areas in southern Nigeria. It will utilize integrated geoelectrical and geological approaches within the GIS-based DRASTIC model. A total of twenty vertical electrical soundings (VES) were conducted in the region using the Schlumberger array. Based on the geological drilling data, the interpretation of the VES data suggests that the area consists of 3-4 geoelectric layers. The lithological succession in the area exhibits a range of sediment types, including fine and coarse sand as well as gravelly sands. Additionally, there are localized occurrences of clay intercalations. The third geoelectric layer, located at a depth of 9.0–86.6 m, is the primary aquifer that can be utilized in the region. The DRASTIC model included seven environmental parameters, including depth to the water table, net recharge, aquifer medium, topography, impact of vadose zone, and hydraulic conductivity, with the purpose of conducting a vulnerability assessment. The assessment of groundwater vulnerability ratings (GVR) reveals that 75% of the research region is classified as high vulnerability, 20% as moderate vulnerability, and the remaining 5% as low vulnerability. The studied area is predominantly characterized by moderate to high Groundwater Vulnerability Rating (GVR), which is likely attributed to the generally gentle topography and the presence of highly permeable geomaterials in the upper levels of the water table.

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Section: Ves Data Acquisition Analysis and Interpretationmentioning

confidence: 99%

Utilizing Geological and Geoelectrical methods in a GIS-based DRASTIC model of the Probable Groundwater Vulnerability in the Southern Nigerian Raffia Metropolis of Ikot Ekpene and its Surroundings

Ikpe,

Inyang,

Sampson

2024

VEETHIKA

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“…The Electrical resistivity method is one of the most important methods for groundwater investigation as it is one of the best methods in detecting groundwater content of subsurface lithologies and water quality [14][15][16]. The Schlumberger array [17,18] is the most commonly used electrode array used in VES surveys.…”

Section: Electrical Resistivitymentioning

confidence: 99%

Geophysical Based Groundwater Potential Zone Mapping: Perspectives and Inferences from Lisana Area along the Guder River, Western Margin of the Central Main Ethiopian Rift

2023

EESRR

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Vertical electrical soundings and magnetic data were used to map the groundwater aquifer system in the Lisana area along the Guder River, northeast of Hosanna town, near the western margin of the Central Main Ethiopian Rift. The surveys were used to map a potential aquifer zone and investigate the groundwater potential for the current and future development of the resource in the Lisana area. The VES data were used to map the depth of a potential aquifer zone and its distribution over the area. The magnetic survey was used to delineate contacts between lithologic units and geological structures. Two-dimensional magnetic forward modeling and one-dimensional electrical modeling were used to identify fractures and lithological units containing potential groundwater. The magnetic and electrical resistivity modeling indicated that a potential aquifer occurs at a depth range from 115m to 142m. The potential aquifer occurs within weathered and fractured ignimbrite and a pumice layer containing sandy soil. This latter lithological unit is the main water-bearing horizon.

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“…The most effective electrical resistivity surveys for groundwater exploration were carried out by applying the traditional Vertical Electrical Sounding (VES), with Schlumberger configuration (Edwards, 1977;Zohdy et al, 1984).…”

Section: Introductionmentioning

confidence: 99%

Subsurface tectonic characterizations by the use of geo-electrical resistivity technique and their implications on environmental soil and groundwater at Erbil dumpsite, west of Erbil city – Iraqi Kurdistan region

Gardi

Asfahani

2019

Contributions to Geophysics and Geodesy

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Twenty seven vertical electrical resistivity soundings (VES), distributed on three profiles, have been carried out around the Erbil city dumpsite location in northern Iraq, by using Schlumberger configuration. The main objective of those VES soundings is to characterize the subsurface structures and to detect the probable soil contamination zones at the dumpsite and the surrounding district. Bai Hassan aquifer in the study region is one of most important natural fresh water in the central sub-basin of Erbil. The 2D Pichgin and Habibulleav technique is applied herein to study and analyse the three VES profiles. Its application in the study region has highly demonstrated the efficacy of such a technique. In fact, the subsurface structures in the study area have been recognized, and the exact position, dip, direction of the faults and groundwater level were also precisely detected. The role of applying this technique together with the available geological information, while carrying out geo-electrical surveys is emphasized to obtain useful, cheap and fast lithological, groundwater table and structural subsurface information.

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Application of surface geophysics to ground-water investigations

Cited by 127 publications

References 14 publications

Utilizing Geological and Geoelectrical methods in a GIS-based DRASTIC model of the Probable Groundwater Vulnerability in the Southern Nigerian Raffia Metropolis of Ikot Ekpene and its Surroundings

Utilizing Geological and Geoelectrical methods in a GIS-based DRASTIC model of the Probable Groundwater Vulnerability in the Southern Nigerian Raffia Metropolis of Ikot Ekpene and its Surroundings

Geophysical Based Groundwater Potential Zone Mapping: Perspectives and Inferences from Lisana Area along the Guder River, Western Margin of the Central Main Ethiopian Rift

Subsurface tectonic characterizations by the use of geo-electrical resistivity technique and their implications on environmental soil and groundwater at Erbil dumpsite, west of Erbil city – Iraqi Kurdistan region

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