PROBLEMS OF GEOTECHNICAL ZONING OF THE UKRAINIAN SHIELD BASEMENT AND THE WAYS OF SOLUTION

The conceptual questions concerning the principles of forming up the geotectonic zoning scheme of the Ukrainian Shield (US) basement are considered. It is shown that the modern zoning scheme of Precambrian formations must be based on the concept of the block divisibility of the US. Based on the priority content of the term “block”, which is based on the block division of the US two interconnected basic principles (signs) are laid: 1) geological – structural-stratigraphic (structural-formations); 2) tectonic – fault (fault-block). Important tectonic elements of zoning of the US are interblock link zones as independent geostructural elements of the first rank. Such zones act as links of heterogeneous blocks. As the main ones geostructural elements of the Ukrainian Shield it is proposed to select six blocks – Volynskyi, Podilskyi, Buzko-Rosynskyi, Inhulskyi, Serednoprydniprovskyi and Pryazovskyi, autonomic Osnytsko-Mikashevytskyi volcano-plutonic zone and four interblock link zones – Brusylivska, Holovanivska, Inhuletsko-Kryvorizka and Orihivsko-Pavlohradska.