Application of electrical resistivity tomography to map lithological differences and subsurface structures (Eastern Sudetes, Czech Republic)

Stan, Dominika; Stan-Kłeczek, Iwona

doi:10.1016/j.geomorph.2014.05.027

Cited by 17 publications

(5 citation statements)

References 16 publications

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“…The research of cliffs located within the Skalní Potok Nature Reserve let authors to define the main crack systems (NW-SE and NE-SW), which are responsible for the current valley morphology, confirming the superior role of the crack systems in their formation. Thus, the carried out comparative analysis enables to specify dominant directions of the main crack systems for gneiss in the studied region of the Hrubý Jeseník (compare Stan and Stan-Kłeczek 2014). Studies also claimed that not insignificant in the presence and location of the measured rock outcrops are quartz intrusions that determine the selective way of sharp weathering.…”

Section: Resultsmentioning

confidence: 99%

Application of the ERT to recognise the geological structure of frost-riven cliffs localised in the Skalny Potok (Hrubý Jeseník Mts.)

Stan-Kłeczek

Stan

2019

Acta Geophys.

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In the area of the Skalni Potok Nature Reserve (Hrubý Jesenik), studies of gneissic cliffs were carried out to determine the role of lithology in the process of their formation. The research included geometric measurements of vertical discontinuity zones of selected rock outcrops and the electrical resistivity tomography (ERT) measurements of strongly weathered subsurface layers. As a result of the measurement, the orientation of the main crack systems (NW-SE and NE-SW) responsible for the location of cliffs within the Skalni Potok Valley was obtained. In addition, the main crack directions for the gneiss occurring in the studied mountain region were identified. Interpretation of the ERT models allowed to characterise the structure of the rock mass, including the reach of the rainwater infiltration level and the depth of the weathering front.

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Section: Resultsmentioning

confidence: 99%

Application of the ERT to recognise the geological structure of frost-riven cliffs localised in the Skalny Potok (Hrubý Jeseník Mts.)

Stan-Kłeczek

Stan

2019

Acta Geophys.

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“…Geophysical methods can provide such datasets from either the surface or boreholes. These data can be modeled to provide an estimate of two‐ or three‐dimensional (2D or 3D) geophysical parameters that are then correlated to subsurface physical parameters (Michot et al., 2003; Stan & Stan‐Kłeczek, 2014; Sudha et al., 2009).…”

Section: Introductionmentioning

confidence: 99%

Interpretation of large‐scale, long‐term electrical geophysical monitoring guided by a process simulation

Robinson,

Johnson,

Thomle

et al. 2024

Vadose Zone Journal

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Surface electrical resistivity tomography (ERT) was used at a waste site to monitor vadose zone changes in electrical properties as a proxy for contaminant flux over a span of 17 years. The BC Cribs and Trenches (BCCT) site at the Hanford site contains 20 disposal trenches and six disposal cribs. Wastes include a large inventory of technetium‐99 and large masses of nitrate and uranium‐238. ERT data were collected along 41 profiles in 2005 to characterize regions of elevated bulk electrical conductivity (BEC) associated with past liquid waste discharges. Previous analyses performed on samples from four boreholes showed a high correlation between nitrate concentration and BEC. In 2022, ERT data were re‐collected along the same profiles and six additional profiles in an area not previously surveyed. Compared to background uncontaminated areas, BEC was higher in contaminated areas at the waste sites. Given the correlation between nitrate concentration and BEC previously found at this site, ERT images show the spatial distribution and relative ionic concentration of vadose zone contaminants at BCCT. Between 2005 and 2022, ERT difference images showed a decrease in BEC surrounding most waste sites, with exceptions where there were known anthropogenic surface changes. An evaluation of recharge‐driven nitrate migration using synthetic flow and transport simulations showed that downward migration causes a decrease in BEC from the decrease in ionic strength at the trailing end of the plume where contaminants migrated downward. From this, we interpret ERT difference images as showing the predominant regions of downward ion flux.

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“…In addition, the 2D and 3D inversion data verify that the resistivity model retrieved by the electrical resistivity tomography not only evaluates the depth of bedrock and complex underground stratification in the study area, but also provides additional information, such as the continuity of bedrock and the existence of underground aquifer. Dominika and Stan et al 23 used the non-invasive and relatively rapid method of high-density electrical resistivity tomography in the ridge and the steep eastern slope of the Orlik massif to obtain a spatial image of a geological rock mass. Meanwhile, they combined the detection results and the results of mineralogical composition analysis to determine the nature and thickness of the weathered layers present on the study area.…”

Section: Introductionmentioning

confidence: 99%

Application of the electrical resistivity tomography in groundwater detection on loess plateau

Dai

Liu

et al. 2023

Sci Rep

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Agricultural irrigation of the South Jingyang tableland in Shaanxi Province, China has led to a continuous rise of the groundwater level and has triggered a series of loess landslides, thereby seriously affecting the life and property safety of local residents. Research shows that the major cause of the landslide in the loess layer of the South Jingyang tableland is the rising groundwater level. Therefore, the research on the formation mechanism of landslide in this area should include the investigation of the stratigraphic structure and groundwater level distribution characteristics. On this basis, a series of approaches, such as electrical resistivity tomography (ERT), borehole, and laboratory tests, was carried out on the South Jingyang tableland, and the groundwater level distribution and stratigraphic structure in the study area were determined. The qualitative relationship between resistivity value and water content at different depths was detected using the inversion results of ERT and borehole data. Through laboratory tests, the quantitative relationship between resistivity values under different water contents was established. The precise depth of the groundwater level was inferred by connecting the qualitative relationship with the quantitative relationship, and then a detailed 3D geological model was established by linking the inversion results of ERT with the field borehole lithology data and geological survey data. The detection results show that when the qualitative and quantitative analyses of the ERT inversion results were combined, the distribution of the groundwater level was accurately judged. The ERT is effective in reflecting the stratigraphic structure and hydrological characteristics of the Loess Plateau, and its potential as a supplementary technology for detecting the groundwater level is reasonable. This study addresses the limitation and inaccuracy in determining the stratum structure and groundwater level by solely relying on borehole information or ERT. The established 3D geological model not only provides a basis for the study of groundwater table fluctuation, but also a technical guidance for the stability evaluation of loess slope, landslide prediction, and early warning in the study area.

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Application of electrical resistivity tomography to map lithological differences and subsurface structures (Eastern Sudetes, Czech Republic)

Cited by 17 publications

References 16 publications

Application of the ERT to recognise the geological structure of frost-riven cliffs localised in the Skalny Potok (Hrubý Jeseník Mts.)

Application of the ERT to recognise the geological structure of frost-riven cliffs localised in the Skalny Potok (Hrubý Jeseník Mts.)

Interpretation of large‐scale, long‐term electrical geophysical monitoring guided by a process simulation

Application of the electrical resistivity tomography in groundwater detection on loess plateau

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