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oa Geoelectrical heterogeneities of the crust and upper mantle of the territory of Ukraine
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Geoinformatics: Theoretical and Applied Aspects 2020, May 2020, Volume 2020, p.1 - 5
Abstract
According to the research, the geoelectric heterogeneities in the earth’s crust and upper mantle of Ukraine were revealed, they are characterized by the anomalously low and anomalously high electrical resistivity values. The conductivity zones that reach the surface are characterized by the subvertical heterogeneity and assemble the galvanically linked system. It spatially coincides with the deep faults of the different rank that are distinguished according to the geological data. The earth’s crust independently of the geological and tectonic region is characterized by anomalous conductivity layers, the upper edge of which is observed at the different depths from 2 to 20 km with an apparent resistivity up to 100 Ohm∙m. The geoelectrical heterogeneity of the upper mantle was revealed in the Pre-Dobrudja and Crimean-Black Sea regions, and only fragmentarily under the Ukrainian shield, the Pripyat depression, and the Dnipro-Donets basin. The paper is with the explaining of the high-electrical conductivity anomaly nature based on the results of the geological and geoelectrical data complex analysis and their study as one of the factors of the geodynamic processes for the ore mineralization and hydrocarbon search.
