ORE-BEARING OF THE VOVCHANSK ZIRCON-RUTIL-ILMENITE DEPOSIT

O.A.  Ganzha
https://orcid.org/0000-0001-8510-5618

M.S.  Kovalchuk
https://orcid.org/0000-0001-9265-9707

Yu.V. Kroshko
https://orcid.org/0000-0002-7601-7760

Institute of Geological Sciences of the NAS of Ukraine, Olesya Honchara Street, 55B, Kyiv, Ukraine, 01054

https://doi.org/10.15407/gof.2024.45.030

The geological structure of the Vovchansk zircon-rutile-ilmenite deposit, which is located on the border of the Synelnikivskiy and Vovchanskiy ledges of the Ukrainian shield and the Dnipro-Donets depression, is briefly considered. Zircon-rutile- ilmenite mineralization is localized in deposits of the middle and upper parts of the Neogene (Middle Sarmatian formation), formed in a coastal-marine facies setting. Deposits are represented by fine-grained, essentially quartz sands. The lateral distribution of the increased average content of ilmenite, rutile, sillimanite, and zircon has a northwest-southeast trend in the form of a strip. The average content of ilmenite is 1.8-345.9 kg/m3; rutile — 0.8-115.3 kg/m3; sillimanite — 0.7-328 kg/m3; zircon — 0.0-95.4 kg/m3; collective concentrate — 11.1-939 kg/m3. On the basis of production reports, an attributive database (coordinates, description and test results of wells) of 673 wells was created. The created database became the basis for cartographic constructions (isopachyte of ore sands, lateral distribution of the average content of ilmenite, rutile, sillimanite, zircon, collective mineral concentrate, distribution of mineral content in the vertical cross-section of wells, distribution of thickness and average mineral content along a given line) and research of spatial distribution of ilmenite, rutile, sillimanite and zircon content in productive sands. Correlation analysis revealed the direction and strength of correlations between the mineral content and between the mineral content and the thickness of productive sands.

Key words: Vovchansk deposit, ore bearing, spatial distribution, correlation analysis, ilmenite, rutile, zircon, sillimanite.

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