Shallow transient electromagnetic method application for groundwater exploration: case study from Greece

Sharlov, M.V.; Buddo, I.V.; Pisarnitskiy, Alexander; Misurkeeva, N.V.; Shelohov, I.A.

doi:10.1080/22020586.2019.12073044

Cited by 6 publications

(4 citation statements)

References 3 publications

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“…The TEM method has been used effectively for groundwater exploration and environmental applications (e.g., Barsukov et al, 2006;Soupios et al, 2015;Kalisperi et al, 2018;Sharlov et al, 2019;Killingbeck Egyptian J. Desert Res., 72, No.…”

Section: Transient Electromagnetic (Tem) Methodsmentioning

confidence: 99%

“…These studies are located to the east of the current research and used mostly one-dimensional vertical electrical sounding (1D VES). Since it is particularly sensitive to conductive bodies, TEM has recently become a frequently utilized, inexpensive, and powerful technique in hydrogeological investigation (Sharlov et al, 2019;Killingbeck et al, 2020 andZarif et al, 2021a). The 2D-ERI approach, on the other hand, is regarded as the first geophysical technique to be intended for locations with limited subsurface data (Dos Santos Gomes et al, 2018;Zarif et al, 2021a andJunaid et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Geophysical Approach to Delineate Groundwater Potentials in the Northwestern Part of Wadi Dara, Eastern Desert, Egypt

Rahman

Zarif

Elshenawy

2022

Egyptian Journal of Desert Research

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he applied geophysical investigations attempt to locate the waterbearing layer(s) that are regarded as the most important elements for the development objectives, which are developed northwest of Wadi Dara, east of the Gulf of Suez. To investigate the condition of groundwater potentials, twenty-five Transients Electromagnetic [TEM] soundings and six twodimensional Electrical Resistivity Imaging [2D-ERI] lines were conducted. The results of the two geophysical methods detected four main geoelectrical layers (Quaternary alluvium deposits [A], layer of dry sand, gravel and shale [B], waterbearing layer/s [C], and basement rocks [D]). Two aquifers were identified during this study. The first aquifer [sublayer C1] corresponds to sandstone, shale, and limestone deposits of the Middle Miocene age. It has low resistivity values ranging from 3 Ωm to 9 Ωm and is restricted to the east direction. This sublayer had a thickness of about 50 m. The second aquifer [sublayer C2] corresponds to Lower Cretaceous sandstone, which has resistivity values ranging from 13 Ωm to 106 Ωm. It was observed that subsurface geological structures have a significant effect on groundwater occurrences throughout the study area. As a result, the generated geoelectrical cross sections show an apparent connectivity between the two aquifers. Because of variability in resistivity values and thicknesses, the groundwater potential varies throughout the studied area. The western portions of the study areas have priority for drilling productive wells into the lower Cretaceous sandstone aquifer, and then the eastern portions offer groundwater from deposits of sandstone, shale, and limestone of the Middle Miocene age.

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Section: Transient Electromagnetic (Tem) Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geophysical Approach to Delineate Groundwater Potentials in the Northwestern Part of Wadi Dara, Eastern Desert, Egypt

Rahman

Zarif

Elshenawy

2022

Egyptian Journal of Desert Research

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“…The system provides measurement sampling rates of up to 40 MHz with a low current to enhance early-time responses and a high current of up to 4 KHz [26]. The ranges of the sampling rate help to have the best possible resolution at both early and late times [34]. Response transients of the decay were filtered, and the best sections of the data collected using different modes were combined into one final curve for each sounding location.…”

Section: Instrumentationsmentioning

confidence: 99%

“…However, inversion of individual soundings is required to estimate the resistivity and thickness, which are the model parameters in the TEM method. Sediments and sedimentary rocks have different resistivities depending on their porosity, fluid saturation, fluid type, clay content, temperature, and other factors [34]. Despite this, resistivity variation optimized in a standard procedure reveals hydrogeological structures.…”

Section: Data Acquisition Processing and Inversionmentioning

confidence: 99%

Mapping Hydrogeological Structures Using Transient Electromagnetic Method: A Case Study of the Choushui River Alluvial Fan in Yunlin, Taiwan

Kassie

Chang

Zeng

et al. 2023

Water

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We used transient electromagnetic (TEM) to map the hydrogeological structures in the Choushui River Alluvial Fan in Yunlin County of central Taiwan. A total of 63 TEM measurements were collected using the FASTSNAP system with 50 × 50 m in-loop configurations in the middle and distal fan. The 1D model, based on prior information, was constructed from the inverted soundings. Results showed a thin, resistive shallow layer and a 40 m low-resistive (6–42 ohm-m) zone beneath it. High-resistive zones (50–170 ohm-m) were found from 50–120 m depth, and low-resistive zones were revealed below 120 m in some areas. Results were consistent with resistivity and lithology logs from nearby wells. The inverted TEM models provide reliable subsurface information when prior informations of vertical electrical sounding and TEM were considered. We interpolated resistivity at 10 m, 50 m, 100 m, and 160 m depth from the 1D model results to produce a slice map of the area, which indicated variations, trends, and depths of the sediment deposits. The TEM method successfully identified the hydrogeological structures, showing that the upper 40 m of sediment acts as a confining layer for the aquifer structure from 50 m to 120 m depth.

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Unraveling the heterogeneous hydrogeological characteristics in the Choushui River alluvial fan, Taiwan, through observations from the multi-layer compaction monitoring wells

Azeriansyah,

Ching,

Lin

et al. 2025

Engineering Geology

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Shallow transient electromagnetic method application for groundwater exploration: case study from Greece

Cited by 6 publications

References 3 publications

Geophysical Approach to Delineate Groundwater Potentials in the Northwestern Part of Wadi Dara, Eastern Desert, Egypt

Geophysical Approach to Delineate Groundwater Potentials in the Northwestern Part of Wadi Dara, Eastern Desert, Egypt

Mapping Hydrogeological Structures Using Transient Electromagnetic Method: A Case Study of the Choushui River Alluvial Fan in Yunlin, Taiwan

Unraveling the heterogeneous hydrogeological characteristics in the Choushui River alluvial fan, Taiwan, through observations from the multi-layer compaction monitoring wells

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