IP interpretation in environmental investigations

Slater, Lee; Lesmes, David

doi:10.1190/1.1451353

Cited by 287 publications

(148 citation statements)

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“…This decay curve is the target of the time domain IP method, because it is characteristic of the medium in terms of initial magnitude, slope and relaxation time. The signal V ip along the decay is usually integrated over n time windows, or gates, for the computation of the chargeability M, which is expressed as following (Schön, 1996;Slater and Lesmes, 2002):…”

Section: And Tdipmentioning

confidence: 99%

“…These properties are associated with diffusion-controlled polarization processes that occur at the mineral-fluid interface (Slater and Lesmes, 2002). The IP phenomenon is often observed in media with electrical resistivities typically lying between 50 and 100 m (the most common values for soils; see Michot et al, 2003) and containing a significant but non-dominant clay phase (Tabbagh et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Application of time domain induced polarization to the mapping of lithotypes in a landfill site

Gazoty

Fiandaca

Pedersen

et al. 2012

Hydrol. Earth Syst. Sci.

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Abstract. A direct current (DC) resistivity and time domain induced polarization (TDIP) survey was undertaken at a decommissioned landfill site situated in Hørløkke, Denmark, for the purpose of mapping the waste deposits and to discriminate important geological units that control the hydrology of the surrounding area. It is known that both waste deposits and clay have clear signatures in TDIP data, making it possible to enhance the resolution of geological structures compared to DC surveys alone. Four DC/TDIP profiles were carried out crossing the landfill, and another seven profiles in the surroundings provide a sufficiently dense coverage of the entire area. The whole dataset was inverted using a 1-D laterally constrained inversion scheme, recently implemented for TDIP data, in order to use the entire decay curves for reconstructing the electrical parameters of the soil in terms of the Cole-Cole polarization model. Results show that it is possible to resolve both the geometry of the buried waste body and key geological structures. In particular, it was possible to find a silt/clay lens at depth that correlates with the flow direction of the pollution plume spreading out from the landfill and to map a shallow sandy layer rich in clay that likely has a strong influence on the hydrology of the site. This interpretation of the geophysical findings was constrained by borehole data, in terms of geology and gamma ray logging. The results of this study are important for the impact of the resolved geological units on the hydrology of the area, making it possible to construct more realistic scenarios of the variation of the pollution plume as a function of the climate change.

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Section: And Tdipmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of time domain induced polarization to the mapping of lithotypes in a landfill site

Gazoty

Fiandaca

Pedersen

et al. 2012

Hydrol. Earth Syst. Sci.

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“…[2] Spectral induced polarization is a nonintrusive geophysical method that is able to image the distribution of the magnitude of the complex conductivity (or complex resistivity) and the phase angle between the current and the voltage of porous materials [Olhoeft, 1985;Vanhala, 1997;Morgan et al, 1999;Slater and Lesmes, 2002a]. The magnitude of the resistivity and the phase lag can be written as a complex conductivity or a complex resistivity.…”

Section: Introductionmentioning

confidence: 99%

Induced polarization signatures of cations exhibiting differential sorption behaviors in saturated sands

Vaudelet

Revil

Schmutz

et al. 2011

Water Resources Research

104

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[1] Two sets of experiments were designed to understand the change in induced polarization associated with the sorption of copper and sodium, exhibiting distinct sorption behavior on a silica sand. A sand column experiment was first performed to see the change in the complex conductivity during the advective transport of a copper sulfate solution. A second set of experiments was done with the sand at equilibrium with various solutions of NaCl and CuSO 4 . In the first experiment, the copper sulfate solution replaced a sodium chloride solution, keeping the electrical conductivity of the solution nearly constant. During the passage of the copper sulfate solution, the apparent phase angle decreased from 3 6 0.2 to 0.5 6 0.2 mrad, while the magnitude of the conductivity of the sand remained nearly constant. A quantitative model is proposed to explain the change in the complex conductivity as a function of the chemistry assuming a polarization mechanism associated with the Stern layer (the inner part of the electrical double layer coating the water-mineral interface). The Stern layer polarization is combined with a complexation model describing the competitive sorption of copper and sodium at the pore water interface. The change of the phase lag is directly associated with the ion exchange between sodium and copper at the surface of the silica grains. The explanation of the observed phase differences between Na and Cu relies on their different complexation behaviors, with Na being loosely absorbed, while Cu forms relatively strong complexation with both inner (monodentate) and outer sphere (bidentate) complexes. The replacement of Cu 2þ by Na þ is less favorable; therefore, the kinetics of such a replacement is much slower than for the opposite replacement (Na þ by Cu 2þ ). We were able to reproduce the changes in the phase lags at thermodynamic equilibrium near the relaxation frequency and in the frequency domain. These measurements and modeling results open the door to the quantitative interpretation of spectral induced polarization data in the field in terms of quantification of the sorption processes.Citation: Vaudelet, P., A. Revil, M. Schmutz, M. Franceschi, and P. Bégassat (2011), Induced polarization signatures of cations exhibiting differential sorption behaviors in saturated sands, Water Resour. Res., 47, W02526,

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“…In the recent past the method of induced polarization (IP) has been successfully used for hydrological, environmental, and engineering purposes at the field scale [e.g., de Lima and Niwas, 2000; Slater and Lesmes, 2002a;Slater and Glaser, 2003;Kemna et al, 2004;Kruschwitz and Yaramanci, 2004;Hördt et al, 2007Hördt et al, , 2009Williams et al, 2009]. Besides the real part of low-frequency (f < 1 kHz) complex conductivity s′(w), which is measured by means of standard electrical devices, by IP measurements also the imaginary part of complex conductivity s″(w) is recorded.…”

Section: Introductionmentioning

confidence: 99%

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

Zisser¹,

Kemna²,

Nover³

2010

J. Geophys. Res.

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[1] The possibility to estimate permeability from the electrical spectral induced polarization (SIP) response might be the most important benefit offered by SIP measurements. It can thus be deduced that, in the future, SIP measurements will be carried out more frequently at the field scale or in a well-logging context to estimate permeability. In the shallow subsurface, however, the temperature generally exhibits seasonal variability, and in the deeper subsurface, it usually increases with depth. Hence, knowledge about the dependence of the SIP response on temperature is necessary in order to avoid possible misinterpretation of datasets impacted by thermal effects. In our study, we present a semiempirical framework to describe the temperature dependence of the SIP response. We briefly introduce the SIP response and its relation to permeability in terms of an electrochemical polarization mechanism and combine this formulation with relationships for the dependence of ionic mobility on temperature. We compare the predictions of our formulation with the experimental data from SIP measurements performed on sandstone at temperatures from 0°C to 80°C. The measured SIP response was transformed into a relaxation time distribution, using the empirical Cole-Cole model and a regularized Debye decomposition procedure. The SIP response was found to be in good agreement with the theoretical model. The temperature dependence of both direct current conductivity and relaxation time is controlled mainly by the dependence of ionic mobility on temperature, and the shape of the relaxation time distribution of the investigated sandstone is almost independent of temperature. The temperature effect on the SIP response can therefore be easily corrected.Citation: Zisser, N., A. Kemna, and G. Nover (2010), Dependence of spectral-induced polarization response of sandstone on temperature and its relevance to permeability estimation,

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IP interpretation in environmental investigations

Cited by 287 publications

References 35 publications

Application of time domain induced polarization to the mapping of lithotypes in a landfill site

Application of time domain induced polarization to the mapping of lithotypes in a landfill site

Induced polarization signatures of cations exhibiting differential sorption behaviors in saturated sands

Dependence of spectral‐induced polarization response of sandstone on temperature and its relevance to permeability estimation

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