Application of electrical resistivity tomography technique for investigation of landslides: a case from Turkey

Drahor, Mahmut G.; Göktürkler, Gökhan; Berge, Meriç A.; Kurtulmuş, T.Ö.

doi:10.1007/s00254-006-0194-4

Cited by 77 publications

(31 citation statements)

References 20 publications

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“…The advent of automated resistivity meters combined with the developments of advanced interpretation (inversion) algorithms Barker 1995, 1996) allow the rapid acquisition of accurate images of the subsurface resistivity and render ERT one of the most important near surface geophysical techniques. Simple modification of instrumentation allow the application of ERT into addressing environmental and engineering problems related to marine environments as several recent applications suggest (Zhou et al 2000;Drahor et al 2006;Yang et al 2002;De Souza and Sampaio 2001).…”

Section: Introductionmentioning

confidence: 99%

Electrical resistivity tomography mapping of beachrocks: application to the island of Thassos (N. Greece)

2009

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Electrical resistivity tomography (ERT) technique is widely used in mapping subsurface electrical properties. In this study, ERT was used to map a beachrock outcrop, extended both inland, under beach sediments, and seawards, on and under seafloor sediments. Mapping of beachrock is considered important because it can help evaluate the lateral and vertical extend of the formation. Fast and reliable mapping of beachrocks may contribute in several applications like engineering and construction, coastal management, recreational reformation as well as scientific approaches like coastal evolution research, and palaeo-environmental studies. The outcome of the survey was the mapping of the formation with centimeter precision, especially towards the sea. Special processing was applied to the data in order to constrain the inversion procedure to include the known sea water layer.

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Section: Introductionmentioning

confidence: 99%

Electrical resistivity tomography mapping of beachrocks: application to the island of Thassos (N. Greece)

2009

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“…ERT is non destructive, and able to produce 2-or 3D spatial and temporal variation of the soil electrical resistivity, which is tightly linked to variation of soil water content (Zhou et al 2001). ERT has been traditionally used in geological prospecting (Shima 1992;Suzuki and Higashi 2001;Mahmut et al 2006), but is now also often applied in hydrological and environmental studies. Applications include the monitoring of solutes and fluid flow in porous media (Binley et al 1996;Fangary et al 1998;French et al 2002), the monitoring of vadose zone water flow (Daily et al 1992;Backer and Moore 1998;Park 1998;Benderitter and Schott 1999;Binley et al 2002) and soil pollution studies (Ahmed and Sulaiman 2001;Depountis et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Estimation of the spatial variability of root water uptake of maize and sorghum at the field scale by electrical resistivity tomography

2009

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Saving water for crop production is an old, but ongoing, challenge which requires a better understanding of the in situ functioning of root systems. In particular, this requires a better quantification and understanding of the spatial and temporal variability of the root water uptake at the field scale. Electrical Resistivity Tomography (ERT) is a nondestructive soil imaging technique, related to water content, which could help in spatializing active zones of water uptake. In this article, we evaluate ERT as an alternative method for quantifying and spatializing root water uptake at the field scale. To this aim, an experimental field study with maize and sorghum submitted to different water supply levels (Fully, Moderately or Poorly Irrigated treatments-FI, MI, PI zones) was conducted for 3 months with concomitant conventional, local, water balance measurements and 2D ERT imaging. ERT images showed an heterogeneous depletion of soil water by the crops, particularly, in the MI and PI zones with patches of high/low electrical resistivity (and thus water content) variations. This heterogeneity was greatest in the MI zone and points to spatial variations in rooting pattern and/or root efficiency. The 5-days difference in electrical resistivity could be quantitatively related to root uptake in the surface layer (down to 60 cm) but the relationship depends on the mean soil water content. At greater soil depth, in the water stressed zones, the water extraction front progressing downwards could not be assessed with the ERT surface setting used in this study. As a conclusion, ERT can be a useful, unique, technique for monitoring and estimating field water uptake by plant roots and its variability if combined water content measurements are available for in situ calibration and if the sensitivity/resolution of the technique is improved for estimation over the whole root zone.

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“…As a result of the developments in multielectrode resistivity instrumentation and data acquisition technique, the electrical imaging has become a standard tool in near-surface geophysical surveys. Among other available geophysical methods, electrical and electromagnetic methods have been found remarkably suitable for environmental studies, due to the conductive nature of most contaminants (Soupios et al 2007;Drahor et al 2006;Atekwana et al 2000).…”

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confidence: 99%

Distribution of Metals in Vadose Zone of the Alluvial Plain in a Mining Creek Inferred from Geochemical, Mineralogical and Geophysical Studies: The Beal Wadi Case (Cartagena–La Union Mining District, SE Spain)

González-Fernández

Rivero

Queralt

et al. 2011

Water Air Soil Pollut

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The assessment of metals dispersal in polluted mining areas is a very complex issue, usually needing data from several analytical techniques in a joint approach. The present work focuses on the impact of the mining activity on lowlands alluvial plain sediments from an ephemeral creek, their role as source or sink of pollution and the spatial distribution of metals within the zone. In-depth distribution of elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, S, Ti and Zn) coming from mining activities was investigated by using X-ray fluorescence techniques and their mineralogical form using X-ray diffraction. A 2-D electrical resistance tomography field survey was carried out throughout at the creek bed to interpret the potential relationships between chemical, mineralogical and geophysical parameters. The application of leaching procedure (DIN 38414-S4 test) allows us to know the sediment's heavy metals hazard and their potential mobility when changing redox conditions. From the results it was found that redox process of sulphur and the presence of carbonate influence the distribution of metals along the profile. In the present work, the precipitation of carbonates seems the most important process, especially for elements such as Zn and Mn. Secondary precipitation of sulphides enables the trapping of metals at sulphur-rich levels.

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Application of electrical resistivity tomography technique for investigation of landslides: a case from Turkey

Cited by 77 publications

References 20 publications

Electrical resistivity tomography mapping of beachrocks: application to the island of Thassos (N. Greece)

Electrical resistivity tomography mapping of beachrocks: application to the island of Thassos (N. Greece)

Estimation of the spatial variability of root water uptake of maize and sorghum at the field scale by electrical resistivity tomography

Distribution of Metals in Vadose Zone of the Alluvial Plain in a Mining Creek Inferred from Geochemical, Mineralogical and Geophysical Studies: The Beal Wadi Case (Cartagena–La Union Mining District, SE Spain)

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