| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Binley, Andrew
Lancaster University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021A linked geomorphological and geophysical modelling methodology applied to an active landslidecitations
- 2019Monitoring redox sensitive conditions at the groundwater interface using electrical resistivity and self-potentialcitations
- 2019Laboratory spectral induced polarisation signatures associated with iron and manganese oxide dissolution because of anaerobic degradationcitations
- 2019Geoelectrical signatures of redox processes
- 2015Self-potential monitoring of the enhanced biodegradation of an organic contaminant using a bioelectrochemical cellcitations
- 2015Anomalous solute transport in saturated porous mediacitations
- 2015Anomalous solute transport in saturated porous media : linking transport model parameters to electrical and nuclear magnetic resonance properties
- 2013Laboratory SIP signatures associated with oxidation of disseminated metal sulphidescitations
- 2012A stochastic analysis of cross-hole ground-penetrating rada zero-offset profiles for subsurface characterizationcitations
- 2006Improved hydrogeophysical characterization using joint inversion of cross-hole electrical resistance and ground-penetrating radar traveltime data.citations
- 2005Electrical properties of partially saturated sandstones.
Places of action
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article
Electrical properties of partially saturated sandstones.
Abstract
Electric and electromagnetic geophysical tools are suitable methods for investigating moisture content, transport, and storage properties of the subsoil with noninvasive surveys. Interpretation of field data is still based on empirical or semiempirical equations, which must be calibrated with complex, time-consuming laboratory measurements. In this paper we develop pore-scale models suitable for computing the effective electric conductivity and the effective permittivity of partially saturated porous media on the basis of simple structural parameters (grain size distribution and porosity). We compute the electrical conductivity with three approaches that model the conductivity of the shell of coating clay around solid grains of shaly sandstones using different assumptions. We compare the simulated results with experimental data from Sherwood Sandstone (UK) and discuss the effect of these assumptions on the effective conductivity. Simulations performed using a modeling approach that accounts for interaction between volume and surface conduction show an excellent agreement with experimental data. We also model the effective permittivity of the same porous medium at several saturation values and obtain a good match with laboratory measurements.