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The results of geomagnetic soundings in the West Carpathians are presented. The number of observation sites in this region was approximately 90. The data treatment included the calculation of single-station transfer functions and the separation of the fields into external and internal parts on some profiles. The interpretation was based on the construction of twodimensional models explaining the observed features. The observed distribution of geomagnetic induction vectors is very regular and the axis of the anomaly runs in the contact region between the outer and inner Carpathians.The thickness of the well-conducting rock complex exceeds 10 km. The wellconducting rocks seem to be the sediments which accumulated in the contact region of the platform. The asymmetry in the distribution of induction vector amplitudes on some profiles can be accounted for by asymmetrical geometry, which is characteristic of the underthrusting of rocks.

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The study of peculiarities in the distribution of the electric conductivity within the Earth's crust and in the upper mantle has been carried out as a special contribution to the Five field components of the magnetotelluric field (3 magnetic+2 horizontal electric)were recorded continuously at each station for the period of two months at least. Two recording sets were used to obtain variation data in the range of periods from a few seconds to a few hours.The experimental data were processed by direct reading of the amplitudes of the quasisinusoidal variations such as PC 1 and PC 3, or, by applying the methods of spectral (235)