1887
Volume 17, Issue 1
  • ISSN: 1569-4445
  • E-ISSN: 1873-0604

Abstract

ABSTRACT

In the early years of near‐surface geophysical applications, measurements obtained using electromagnetic induction (Slingram or dipole–dipole) instruments were first interpreted in terms of electrical conductivity. Afterwards, studies began considering the importance of magnetic susceptibility. Until now, however, no attention has been paid to possible responses in dielectric permittivity. After reviewing the current state of knowledge regarding the expected theoretical responses in the very low frequency to low frequency (VLF‐LF) range (3–300 kHz) and the value range of this property for soils, we propose the use of multi‐frequency instruments to define a process allowing for the determination of the apparent conductivity and permittivity in the higher part of the frequency range above 20 kHz. We test this process through a series of experiments at archaeological sites in Greece using the GEM‐2 (Geophex Ltd) instrument. In our experiments, the soil permittivity values fall between several hundredths and several thousandths. The results indicate lateral variations different from the other properties with a significant influence of the stone content and of the ionic strength, while a decrease with frequency may also provide further information on soil dielectric behaviours.

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References

  1. BenechC., LombardP., RéjibaF. and TabbaghA.2016. Demonstrating the contribution of dielectric permittivity to the in‐phase EMI response of soils: example of an archaeological site in Bahrain. Near Surface Geophysics14, 337–344.
    [Google Scholar]
  2. BörnerF., GruhneM. and SchönJ.1993. Contamination indications derived from electrical properties in the low frequency range. Geophysical Prospecting41, 83–98.
    [Google Scholar]
  3. CosenzaP., GhorbaniA., RevilA., ZamoraM., SchumtzM., JougnotD.et al. 2008. A physical model of the low‐frequency electrical polarization of clay rocks. Journal of Geophysical Research113, B08204.
    [Google Scholar]
  4. DabasM., JolivetA. and TabbaghA.1992. Magnetic susceptibility and viscosity of soils in a weak time varying field. Geophysical Journal International108, 101–109.
    [Google Scholar]
  5. Donati, J.C., SarrisA., PapadopoulosN., KalayciT., SimonF.‐X., ManatakiM.et al. 2017. A regional approach to ancient urban studies in Greece through multi‐settlement geophysical survey. Journal of Field Archaeology42, 450–467.
    [Google Scholar]
  6. HippelA.R.1954. Dielectrics and Waves. John Willey & Son
    [Google Scholar]
  7. Kalayci, T., Simon, F‐X. and Sarris, A.2017. A Manifold approach for the investigation of early and middle Neolithic settlements in Thessaly, Greece, Geosciences7, 79.
    [Google Scholar]
  8. KemnaA., BinleyA., CassianiG., NiederleithingerE., RevilA., SlaterL.et al. 2012. An overview of the spectral induced polarization method for near‐surface applications. Near Surface Geophysics10, 453–468.
    [Google Scholar]
  9. KessouriP.2012. Mesure simultanée aux fréquences moyennes et cartographie de la permittivité diélectrique et de la conductivité électrique du sol . PhD thesis, Université Pierre et Marie Curie, Paris.
  10. NabighianM
    . 1991. Electromagnetic Methods in Applied Geophysics: Volume 2, Application, Parts A and B. Society of Exploration Geophysics.
    [Google Scholar]
  11. OkayG., LeroyP., GhorbaniA., CosenzaP., CamerlynckC., CabreraJ.et al. 2014. Spectral induced polarization of clay‐sand mixtures: experiments and modeling. Geophysics79, E353–E375.
    [Google Scholar]
  12. RevilA.2013. Effective conductivity and permittivity of unsaturated porous materials in the frequency range 1 mHz–1GHz. Water Resources Research49, 306–327.
    [Google Scholar]
  13. SchmutzM, BondelA. and RevilA.2012. Saturation dependence of the quadrature conductivity of oil‐bearing sands. Geophysical Research letters39, L03402.
    [Google Scholar]
  14. ScollarI, TabbaghA., HesseA. and HerzogI.1990. Archaeological Prospection and Remote Sensing. Cambridge University Press.
    [Google Scholar]
  15. SeigelH., NabighianM.N., ParasnisD.S. and VozoffK.2007. The early history of induced polarization. The Leading Edge26, 312–321.
    [Google Scholar]
  16. SimonF.‐X., SarrisA., ThiessonJ. and TabbaghA.2015a. Mapping of quadrature magnetic susceptibility/magnetic viscosity of soils by using multi‐frequency EMI. Journal of Applied Geophysics120, 36–47.
    [Google Scholar]
  17. SimonF.‐X., KalayciT., DonatiJ.‐C., Cuenca GarciaC., ManatakiM. and SarrisA.2015b. How efficient is an integrative approach in archaeological geophysics? Comparative case studies from Neolithic settlements in Thessaly (central Greece). Near Surface Geophysics13, 633–643.
    [Google Scholar]
  18. SouffachéB., KessouriP., BlancP. and TabbaghA.2016. First investigations of in‐situ electrical properties of limestone blocks of ancient monuments. Archaeometry58, 705–721.
    [Google Scholar]
  19. TabbaghA., CosenzaP., GhorbaniA., GuérinR., and FlorschN., 2009. Modelling Maxwell‐Wagner induced polarization amplitude for clayed material. Journal of Applied Geophysics67, 109–113.
    [Google Scholar]
  20. TiteM.S., and MullinsC.E.1969. Electromagnetic prospecting: a preliminary investigation. Prospezioni Archeologiche4, 95–102.
    [Google Scholar]
  21. ThiessonJ., KessouriP., SchamperC. and TabbaghA.2014. Calibration of frequency‐domain electromagnetic devices used in near‐surface surveying. Near Surface Geophysics12, 481–491.
    [Google Scholar]
  22. Viscarra‐RosselR.A., McBratneyA.B. and MinasnyB.2010. Proximal Soil Sensing. The Netherlands: Springer.
    [Google Scholar]
  23. WaitJ.R.1951. The magnetic dipole over the horizontally stratified earth. Canadian Journal of Physics29, 577–592.
    [Google Scholar]
  24. WellerA., SlaterL., HuismanJ.A., EsserO. and HaegelF.‐H.2015. On the specific polarizability of sands and sand‐clay mixtures. Geophysics80, A57–A61.
    [Google Scholar]
  25. Won, I., Keiswetter, D., Fields, G. and Sutton, L.1996. GEM‐2: a new multi‐frequency electromagnetic sensor. Journal of Environmental and Engineering Geophysics1, 129–137.
    [Google Scholar]
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