Electrical resistivity tomography (ERT) data for clay mineral mapping

Arjwech, Rungroj; Sriwangpon, Pakawat; Somchat, Kittipong; Pondthai, Potpreecha; Everett, Mark E.

doi:10.1016/j.dib.2020.105494

Cited by 13 publications

(7 citation statements)

References 2 publications

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“…The loss of ne particles between the gravel particles is likely to accompany the enlargement of voids and the formation of seepage channels [39]. Recent studies have supported this conclusion, highlighting that in earth-rock dams, loose structure, poor compaction, and the absence of ne particles between coarse particles are considered major factors contributing to dam seepage [40,41].…”

Section: Discussionmentioning

confidence: 94%

Integrated high-resolution electrical tomography and drilling cascading investigation of earth-rock dam leakage in a siltstone region: A case study of the Maoshan Reservoir, China

Xin,

Gan,

Liu

et al. 2024

Preprint

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Piping, erosion at the contact of flowing soil, and leaching damage pose a serious leakage risk to earth-rock dams in the siltstone regions. With increasing reservoir operation time, seepage phenomena commonly occur in earth-rock dams, leading to progressively severe damage to the dam body. To understand the distribution of seepage in an earth-rock dam, including its location and magnitude, an imaging analysis of the dam structure is necessary. This involves determining the leakage positions and the underlying reasons. In this study, we conducted a high-resolution electrical resistivity tomography (HERT) investigation to characterize the leakage conditions of the Maoshan Reservoir earth-rock dam in the siltstone area of Jiangxi Province. To enhance the reliability of the HERT data interpretation, drilling, and water pressure tests were employed to validate the interpretations of low-resistivity zones. By applying this cascading survey and analysis method, we obtained spatial variability information on the apparent resistivity of the dam. The resistivity imaging of the entire dam revealed significant variations in apparent resistivity in the study area. Low-resistivity anomalies and high-resistivity anomalies were observed on both the upstream and downstream slopes of the dam. These anomalies represent saturated water channels and impervious bodies, with resistivities less than 200 Ωm and greater than 700 Ωm, respectively. The results of this study indicate that a cascading survey combining HERT and drilling is effective for analyzing the leakage positions of earth-rock dams, providing valuable insights for engineers in implementing effective anti-leakage measures in siltstone area reservoirs.

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Section: Discussionmentioning

confidence: 94%

Integrated high-resolution electrical tomography and drilling cascading investigation of earth-rock dam leakage in a siltstone region: A case study of the Maoshan Reservoir, China

Xin,

Gan,

Liu

et al. 2024

Preprint

View full text Add to dashboard Cite

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“…The color bar indicates the range of electrical resistivity values in the unit of ohmmeters (Ωm). The color scale is logarithmic and consistent with contour intervals (Arjwech et al, 2020).…”

Section: K = 2πamentioning

confidence: 86%

“…Geoelectrical methods are very commonly used in conducting subsoil or subsurface investigations for various cases. Many studies have been done on this subject as follows: geotechnical and engineering site investigations (Nur Islami, 2019); groundwater explorations (Island and Balaji, 2013) (Hafeez, Sabet and Zayed, 2018) (Rabeh et al, 2018) (Bayewu et al, 2018) (Aboh, 2015); mapping subsurface structures (Wo and Bania, 2019); mapping of soil and groundwater contamination (Xu et al, 2019) (Ganiyu et al, 2020); environmental studies (Wilson, Ingham and Mcconchie, 2006) (Kumar, Priju and Prasad, 2015) (Fadili et al, 2017); mapping of growth fault (Khalili and Mirzakurdeh, 2019); soil characterization for engineering purposes (Arjwech et al, 2020) (An et al, 2020) (Abudeif et al, 2019); ore deposit explorations (Arjwech et al, 2020) (Youssef, El-gawad and Farag, 2018) (Hariri et al, 2019); archaeological investigations (Yilmaz et al, 2019); bedrock detections (Woźniak and Bania, 2019).…”

Section: Introductionmentioning

confidence: 99%

Resistivity Method for Characterising Subsurface Layers of Coastal Areas In South Sulawesi, Indonesia

Rahmaniah

Wahyuni

Massinai

et al. 2021

J. Geoscience Eng. Environ. Technol.

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The data presented in this paper are related to the characterization of a subsurface layer of coastal area in South Sulawesi. This research will fill the gap in the resistivity method study which is this method not yet use in the coastlines area, especially area influenced by seawater and coastal condition impact like South Sulawesi. The method used in this study is the method of resistivity Wenner configuration by taking the data 1-2 lines each region with lengths 45 m, 75 m, 105 m, and 120 m respectively. Data processing using non-linear least square optimization with that of the 2D inversion software Res2Dinv. The results show that the area is underlain by two layers of lithologic sections. In some sections interpreted by sandy layer, clay, sandstone, alluvium, sandy in seawater and metal minerals. From the analysis of the layers, all regions show the resistivity minimum is 0.00849 Ωm and 8.04 Ωm maximum resistivity. The result of this research can give n insight to study the large coastal area subsurface.

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“…To assess heavy metal soil distribution, the twodimensional electrical resistivity tomography technique (2D-ERT) is an accurate tool for use in analysing crop systems based on previous reports 8 , and it recently used for assessing Cd content in cacao soils in Colombia 9 . This technique has been used in the assessment of soils where clay minerals and the weathering of granite rock were noticed on the ground surface 10 . This approach can help in identifying areas potentially high in Cd spots to aid in soil sampling to quantify Cd in the soil.…”

Section: Subsoil and Topsoil CD Distributionmentioning

confidence: 99%

Cadmium in Cacao: ‘From Soil to Bar’ the Journey of Cadmium at a Farm Level

Bravo¹,

Santander²,

Rodríguez³

et al. 2021

Preprint

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Cadmium (Cd) is a non-nutritive element present across the earth. In cacao crops from South America, Cd has become one of the biggest challenges due to its flux from soils, and due to the enriched content of this metal, it makes its way into the beans and finally affects the chocolate quality. This manuscript aims to show how the flux of Cd occurs, from the soil to the post-harvest phase and chocolate production, by analysing the possible inputs to the system in a single farm assessed as a model for enriched-Cd status. This study shows that both geogenic and anthropogenic activities have an incidence on the final Cd content in chocolate, especially with respect to soil properties, fertiliser applications, post-harvest treatments and chocolate production.

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Electrical resistivity tomography (ERT) data for clay mineral mapping

Cited by 13 publications

References 2 publications

Integrated high-resolution electrical tomography and drilling cascading investigation of earth-rock dam leakage in a siltstone region: A case study of the Maoshan Reservoir, China

Integrated high-resolution electrical tomography and drilling cascading investigation of earth-rock dam leakage in a siltstone region: A case study of the Maoshan Reservoir, China

Resistivity Method for Characterising Subsurface Layers of Coastal Areas In South Sulawesi, Indonesia

Cadmium in Cacao: ‘From Soil to Bar’ the Journey of Cadmium at a Farm Level

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