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oa Search for Fresh Water in the Zone of Joining the Priazov Megablock with the Donbas
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 17th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Nov 2023, Volume 2023, p.1 - 5
Abstract
At the post-war stage, there will be an urgent need to provide drinking (fresh) water to the population of the de-occupied territories of southeastern Ukraine and its economic needs.
The authors of the report comprehensively reviewed the geophysical surveys of different years carried out by the Dnipropetrovsk geophysical expedition “Dniprogeofizika” with the aim of using them to identify promising areas for underground water exploration. As an example, the results of geophysical works on the Blagodatne – Olhino square (Donetsk region) are considered. In tectonic terms, it is located within the zone of Donbas with the Azov crystalline massif jouning. Its geological structure includes limestones (formation C11), shales and sandstones (formations C12, C13) of the Lower Carboniferous, sedimentary and effusive deposits of the Devonian and rocks of the Archean gneiss-migmatite complex.
Based on the results of geophysical research, four systems of tectonic disturbances were identified: sublatitudinal (azimuth up to 100º), submeridian (320–340º), north-eastern (60–70º) and meridional (0–10º). The systems of sublatitudinal and submeridional extension prevail here. The results of the complex interpretation of the materials show that the rocks within the zones of large discontinuities from intensive open-type planar fracturing are distinguished by the greatest waterlogging. Submeridional and sublatitudinal disturbances are characterized by the greatest wateriness. One of the main factors that determines the high water permeability of rocks and the prospects of the area is the capacity of the aquifer. The increased density of loose sandy-clay deposits of the Paleogene-Neogene, covering the limestones, is an unfavorable factor that complicates the infiltration feeding of the C1t, C1x, and C12 aquifers.