Use of geoelectrical methods in groundwater pollution surveys in a coastal environment

Frohlich, Reinhard K.; Urish, Daniel W.; Fuller, James; O’Reilly, Mary

doi:10.1016/0926-9851(94)90016-7

Cited by 85 publications

(41 citation statements)

References 13 publications

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“…Various researchers are found in the literature, exploiting direct current geoelectrical methods competence in groundwater salinization investigations around the world. Examples of one dimensional soundings include: Urish and Frohlich (1990);Frohlich et al (1994); Ebraheem et al (1997); Nowroozi et al (1999);Choudhury et al (2001); Edet and Okereke (2001); Sherif et al (2006);and Adepelumi et al (2009). In all the aforementioned studies, the authors were able to successfully distinguish between freshwater and saltwater domains in various geological environments, by combining the results of numerous Vertical Electrical Soundings (VES) across coastal zones.…”

Section: Introductionmentioning

confidence: 95%

Large Scale Electrical Resistivity Tomography Survey Correlated to Hydrogeological Data for Mapping Groundwater Salinization: A Case Study from a Multilayered Coastal Aquifer in Rhodope, Northeastern Greece

et al. 2015

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A large scale two dimensional electrical resistivity survey was carried out to investigate groundwater salinization phenomena of a multilayered coastal aquifer in south Rhodope area, northeastern Greece. The electrical resistivity tomography (ERT) profiles, calibrated with lithological, physicochemical and geophysical log data, were used to demarcate the geometry of the aquifer system and characterize the extent of the interface between saline and freshwater in a coastal groundwater system, which has been subject to overexploitation for the last 35 years. In total, 12 deep high resolution ERT profile lines, covering a distance of approximately 15 km were carried out at key locations across the downgraded part of the aquifer system. The resistivity sections were calibrated using a reference dataset of 45 information wells incorporating 28 lithological logs, 31 groundwater quality samples from a variety of screen placements and five gamma ray logs. Results revealed the presence of four major resistivity zones ranging in values between 0.1 and 150 Ωm at various depths and locations. A very low resistivity zone (0.1-5 Ωm) correlated with saline water saturated layers, a medium resistivity zone (5-15 Ωm) attributed to clays and silts, and two high resistivity zones generally representing freshwater saturated sediments of coarse grain size (15-40 Ωm) or alterations of thin marl and fine sand layers (40-150 Ωm). It is demonstrated that extensive use of high resolution deep geoelectrical sections, calibrated with a large number of hydrogeological data can successfully delineate aquifer geometry dimensions, identify hydraulic boundaries and clarify ambiguous field measurements, thus allowing the development of a thorough hydrogeological conceptual model.

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Section: Introductionmentioning

confidence: 95%

Large Scale Electrical Resistivity Tomography Survey Correlated to Hydrogeological Data for Mapping Groundwater Salinization: A Case Study from a Multilayered Coastal Aquifer in Rhodope, Northeastern Greece

et al. 2015

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“…As a consequence of these improvements, electrical surveys can provide spatially dense and detailed measurements over large areas at low cost (Andrews et al, 1995;Frohlich et al, 1994). Direct modelling of the apparent resistivity over defined and synthetic subsurfaces would help in choosing the more appropriate electrical configuration in a specific context (Kampke, 1999;Mauriello et al, 1998;Seaton and Burbey, 2002).…”

Section: Data Acquisition Facilitiesmentioning

confidence: 99%

“…White (1988) used the small resistivity of a solution with a great salt content as a tracer because it guarantees a great electrical resistivity contrast. Frohlich et al (1994) mapped the vulnerability of an aquifer by determining the extent and flow path of pollution by distinguishing the polluted from the clean water. Groundwater contamination has also been monitored (Abdelatif and Sulaiman, 2001;Gue´rin et al, 2002;Karlik and Kaya, 2001;Yoon and Park, 2001) in different regions.…”

Section: Data Acquisition Facilitiesmentioning

confidence: 99%

Electrical resistivity survey in soil science: a review

Samouëlian

Cousin

Tabbagh³

et al. 2005

Soil and Tillage Research

905

528

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Electrical resistivity of the soil can be considered as a proxy for the spatial and temporal variability of many other soil physical properties (i.e. structure, water content, or fluid composition). Because the method is non-destructive and very sensitive, it offers a very attractive tool for describing the subsurface properties without digging. It has been already applied in various contexts like : groundwater exploration, landfill and solute transfer delineation, agronomical management by identifying areas of excessive compaction or soil horizon thickness and bedrock depth, and at least assessing the soil hydrological properties. The surveys, depending on the areas heterogeneities can be performed in one-, two-or three-dimensions and also at different scales resolution from the centimetric scale to the regional scale. In this review, based on many electrical resistivity surveys, we expose the theory and the basic principles of the method, we overview the variation of electrical resistivity as a function of soil properties, we listed the main electrical device to performed one-, two-or three-dimensional surveys, and explain the basic principles of the data interpretation. At least, we discuss the main advantages and limits of the method.

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“…The direct current (DC) resistivity method for conducting a VES is effectively used for groundwater study due to the simplicity of the technique, easy interpretation and the rugged nature of the associated instrumentation. The technique is widely used in soft and hard rock areas and previous study using this technique includes (Ebraheem et al, 1997;Frohlich et al, 1994;Olorunfemi et al, 1999;Adelusi and Balogun, 2001;Omosuyi et al, 2003;Oladapo et al, 2004) The present study is to determine the geoelectric and Dar-Zarrouk parameters in evaluating the groundwater potential and aquifers risk to surface infiltrations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of groundwater potential and aquifer protective capacity assessment at Tutugbua-Olugboyega area, off Ondo road, Akure Southwestern Nigeria

Ayuk¹,

Adelusi²,

Adiat³

2013

Int. J. Phys. Sci.

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A total of thirty-two (32) vertical electrical sounding (VES) data were acquired using R 50 d.c. Resistivity meter within the Precambrian basement geology of part of Akure metropolis southwestern Nigeria. The VES data were interpreted; eight type curves were identified, from the geoelectric section the subsurface was characterized into four lithologies namely topsoil, weathered layer (clay /lateritic clay), weathered / fractured basement and bedrock. Thus, two major aquifers were mapped these are weathered/partially weathered layer and weathered basement/fractured basement aquifers. These aquifers are characterized by thick overburden, found within basement depressions and exhibit moderate to relatively high values of coefficient of anisotropy, λ, (0.97-1.11) with depth. Also, ancient river channel trending approximately NE-SW was mapped. The assessment of the materials above the aquifers showed that longitudinal conductance (S), values ranged from 0.0035 to 0.17 mhos; thus the S values are generally low suggesting that the materials above the aquifers are loose and porous thus having less capacity to protect aquifers in the study area. Thus the aquifers are poorly protected, and by implication vulnerable to infiltration.

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Use of geoelectrical methods in groundwater pollution surveys in a coastal environment

Cited by 85 publications

References 13 publications

Large Scale Electrical Resistivity Tomography Survey Correlated to Hydrogeological Data for Mapping Groundwater Salinization: A Case Study from a Multilayered Coastal Aquifer in Rhodope, Northeastern Greece

Large Scale Electrical Resistivity Tomography Survey Correlated to Hydrogeological Data for Mapping Groundwater Salinization: A Case Study from a Multilayered Coastal Aquifer in Rhodope, Northeastern Greece

Electrical resistivity survey in soil science: a review

Evaluation of groundwater potential and aquifer protective capacity assessment at Tutugbua-Olugboyega area, off Ondo road, Akure Southwestern Nigeria

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