DIELECTRIC SPECTROSCOPY IN CRUSTAL ROCKS: PRELIMINARY RESULTS FROM NORTHEASTERN SICILY (ITALY) AND THE GULF OF CORINTH (GREECE)

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Published: Jan 1, 2004
DOI: https://doi.org/10.12681/bgsg.16677
Keywords:
dielectric spectroscopy crustal rocks Northerneast Sicily Gulf of Corinth
D. Triantis
Department of Electronics Engineering, Technological Educational Institution of Athens
I. Stavrakas
Department of Electronics Engineering, Technological Educational Institution of Athens
C. Anastasiadis
Department of Electronics Engineering, Technological Educational Institution of Athens
F. Vallianatos
Department of Natural Resources & Environment, Technological Educational Institution of Crete
S. Kershaw
Department of Geography and Earth Sciences, Brunei University
Abstract

Dielectric response was studied on two samples of manganese- and iron bearing rock materials of two different geological origins, one from Northeastern Sicily (Italy) and one from the Southern Gulf of Corinth (Greece). The study of the dielectric properties is a flexible non destructive testing method. The technique is based on the application of a single- frequency AC electric field to the sample and the measurement of the amplitude and phase of its response. In the present work the broadband dielectric relaxation spectroscopy technique was applied in the frequency range from 1kHz to 1MHz. The hydrated samples, of the above rock materials, that give rise to high values of both the real and imaginary part of the complex dielectric permittivity function are due to interfacial polarization mechanisms attributed to pore water. The two dry samples exhibit much lower values with respect to the hydrated ones while they have a big differentiation between their own permittivity
values as well as between the shapes of their dielectric responses. This can be attributed to different origins of geotectonic deformation of the samples.

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  • Engineering Geology, Hydrogeology, Urban Geology
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References
Asami, K., 2002. Characterization of heterogeneous systems by dielectric spectroscopy, Prog. Polym. Sci, 27, 1617-1659.
Chelidze, T. L, & Gueguen, Y., 1999. Electrical spectroscopy of porous rocks: a review- I. Theoretical model, Geophys. J. Int., 137, 1-15.
Chelidze, T. L, Gueguen, Y., & Ruffet, C, 1999. Electrical spectroscopy of porous rocks: a review- II. Experimental results and interpretation, Geophys. J. Int., 137,16-34.
Cole, K.S., & Cole, R.H., 1941. Dispersion and absorption in dielectrics, J. Chem. Phys., 9, 341-351.
Davidson, D.W., & Cole, RH., 1950. Dielectric relaxation in glycerine, J. Chem. Phys., 18, 1417pp.
Davidson, D.W., & Cole, R.H., 1951. Dielectric relaxation in glycerol, propylene glycol and n-propanol, J. Chem. Phys., 19, 1484-1490.
dover, P.W.J., Meredith, P.G., Sammonds, P.R., & Murrel, S.A.F., 1994a. Ionic surface electrical conductivity in sandstone, J. geophys. Res., 99 (B11), 21635-21650.
Glover, P.W.J., Meredith, P.G., Sammonds, P.R., & Murrel, S.A.F., 1994b. Measurements of complex electrical conductivity and fluid permeabilities in porous rocks at raised confining pressures, in Rock Mechanics in Petroleum Engineering, Proc. EUROROCK94, Delft, Balkema, Amsterdam, pp. 29-36.
Glover, P.W.J., Gomezm J.B., Meredith, P.G., Boon, S.A., Saumonds, P.R. & Marbell, S.A.F., 1996. Modeling the stress strain behaviour of saturated rocks undergoing triaxial deformation using complex electrical conductivity measurements, Sur. Geophys., 17 (3), 307-330.
Gueguen, Y., & Palciauskas, V., 1994. Introduction to the Physics of rocks Princeton University Press, Princeton. Havriliak, S., & Negami, S., 1966. A complex plane analysis of α-dispersions in some polymer systems, J. Polym. Sci., C, 14,99-117.
Hilfer, R., 1996. Transport and Relaxation Phenomena in Porous Media, Adv.Chem.Phys, XCII, pp 299.
Hilfer, R., Widjajakussuma, J., & Biswal, B., 2000. Macroscopic dielectric constant for microstructures of sedimentary rocks, Granular matter 2, Springer-Verlag, 137-141.
Howell, B. F., & Licastro, P. H., 1961. Dielectric behavior of rocks and mineral, Am. Mineral., 46, 269-288.
Jonscher, A. K., 1983. Dielectric Relaxation in Solids, Chelsea Press , 219-226.
Jonscher, A. K., 1999. Dielectric relaxation in solids, J. Phys. D. Appi. Phys, 32, 57-70.
Kershaw, S., 2000. Quaternary reefs of Northeastern Sicily: Structure and growth controls in an unstable tectonic setting, Journal of Coastal Research, 16, 1037-1062.
Knight, R., 1983. The use of complex plane plots in studying the electrical response of rocks, J. Geomag. Geoelectr, 35, 767-776.
Knight, R.J., & Nur, Α., 1987. The dielectric constant of sandstones, 50 kHz to 4MHz, Geophysics, 52, 644-654.
Lesmes, David, P., & Dale, M.F., 2001. Dielectric spectroscopy of sedimentary rocks, Journal of Geophysical Research., 106, B7, 13329-13346.
Macdonald, J.R., (Ed). 1987. Impedance Spectroscopy, Wiley, New York.
Maxwell, J.C., 1891. A Treatise on Electricity and Magnetism 3rd edn, vol 1 (Oxford: Clarendon), reprinted 1954 (New York: Dover), ρ 246.
Nover, G., Heikamp, S., & Freund, D., 2000. Electrical impedance spectroscopy used as a tool for the detection of fractures in rock samples exposed to either hydrostatic or triaxial pressure conditions, Natural Hazards, 21,317-330.
Ruffet, C, Gueguen, Y., & Darot M., 1991a. Rock conductivity and fractal nature of porosity, Terra Nova, 3, 265-275.
Ruffet, C, Gueguen, Y., & Darot, M., 1991b. Complex measurements and fractal nature of porosity, Geophysics, 56, 758-768.
Ruffet, C, Gueguen, Y., & Darot, M., 1991. Complex conductivity measurements and fractal nature of porosity, Geophysics, 56, 758-768.
Siddiqi, G., Evans, B., Dresen, G., & Freund, D., 1997. Effect of semi brittle deformation on transport properties of calcite rocks. J. Geophys. Res., 102, (B7), 14765-14778.
Wagner, K.W., 1914. Erklärung der dielekrischen Nachwirkungsvorgänge auf Grund Maxwellscher Vorstellungen, Archiv für Electrotechnik 11(9), 371-387, (in German).
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