BILOZERSKA SERIES OF THE UKRAINIAN SHIELD: PROBLEMS OF STRATIGRAPHY AND CORRELATION
The article discusses the problematic issues of the geological structure of the Bilozersky synclinorium of the Ukrainian Shield, its stratigraphic structure, formation composition and absolute age of the rock associations that compose it. The interrelationships of interregional correlation of the Bi...
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| Date: | 2023 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Institute of Geological Sciences, NAS of Ukraine
2023
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| Subjects: | |
| Online Access: | http://geojournal.igs-nas.org.ua/article/view/279613 |
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| Journal Title: | Geological journal |
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Geological journal| Summary: | The article discusses the problematic issues of the geological structure of the Bilozersky synclinorium of the Ukrainian Shield, its stratigraphic structure, formation composition and absolute age of the rock associations that compose it. The interrelationships of interregional correlation of the Bilozerska and Kryvyi Rih series of the Ukrainian Shield are considered. Significant adjustments to the current stratigraphic scheme of the Bilozerska series are proposed. The necessity of abolishing the upper metasedimentary stratum (Pereverzevska Suite) and returning to the traditional twoshell structure of the Bilozerska series, which consists of a sub-iron-bearing essentially terrigenous and iron-bearing terrigenous-chemogenic ferruginous-siliceous suite, is noted. The author’s interpretation of the folded structure of the central zone of the Bilozerska structure is proposed, which allows to explain all the complexities of its stratigraphy in a consistent manner, to reconcile the stratigraphic position of the Teplivska Association of the Bilozersky synclinorium with the position of the Talc Horizon of the Kryvyi Rih series, and to show a complete correspondence in the general sequence of stratons between the sediments of the Bilozerska and Kryvyi Rih series. The complete lithologic, stratigraphic, and formational correlation of the Bilozerska series with the section of the Kryvyi Rih series within the Skelyuvatsko- Saksagan sedimentary cycle is shown by a set of features. It is recommended to unite the Kryvyi Rih and Bilozerska series into a single supra-regional and superserial taxon – the Kryvyi Rih-Bilozersky complex. |
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