Geophysical Journal | 2007 volume 29 3

Deep changes of electric parameters of crystalline rocks and the nature of anomalies of electrioconductivity in the Earth's crust

© Shepel S.I., Kravchuk M.V.

Generalized results of analysis of the influence of the main factors within different depth intervals on the electric parameters allowed to discriminate deep geoelectric zones within the limits of lithosphere. Established character of differentiation of the main types of rocks of the Ukrainian shield according to the complex of their electric parameters under high temperatures and pressures made possible to create synthetic geoelectric model of the Earth's crust of the Precambrian shield. Proposed hypothesis on the nature of anomalies of electric conductivity within the Earth's crust of continental type connects minimal values of electric resistance with effects of temperature and high mineralization of fluids.

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