Stratigraphic basement and correlation of the precambrian central part cuts of the Ukrainian shield

Abstract

In the central part of the Ukrainian Shield are allocated two independent structural elements: Inhul block and Inhulets-Kryvyi Rih suture zone, instead of the Inhul-Inhulets region, according to the current tectonic zoning in “Correlation Chronostratigraphic Scheme of the Early Precambrian of the Ukrainian Shield”. The stratigraphic dividing of this territory has not undergone any changes. The article suggests existing Inhul-Inhulets Series in this scheme to divided into two: the Inhul (Inhul block) and the Inhulets (Inhulets-Kryvyi Rih suture zone) and several independent strattons in the Suites rank. As part of the Inhul Series, the upper part of the Inhul-Inhulets Series remains as part of the Kamianokostuvatska and Roshсhakhivska (Bratskа SFZ) and Spasivska and Checheliivska (Inhul SFZ) Suites. In the lower part of the section, there is an independent Rodionivska Suite. The West Inhulets and Kryvyi Rih-Kremenchuk SFZ stratigraphic sections of the Inhulets-Kryvyi Rih suture zone are identical and completely correlate with each other: lower Mesoarchean metaterigenic Lativska Suite is basal for both, Mesoarchean metavolcanogenic Nyzhnozelenorichanska Suite of the West-Inhulets SFZ is correlated with the Novokryvorizka Suite of the Kryvyi Rih-Kremenchuk SFZ, Paleoproterozoic Inhulez Series – respectively, with the Kryvyi Rih Series (metavolcanogenic-sedimentary Verkhnozelenorichanska Suite – with the Skeliuvatska Suite, and the metaterigenic-ferrous Artemivska Suite – with the Saksaganska), carbonate-carbon-terigenic Rodionivska Suite – with Hdantsivska. These stratigraphic units represent by themselves their own suture formations of the Inhulets-Kryvyi Rih suture zone.

Keywords

• ukrainian shield
• central part
• correlation chronostratigraphic scheme
• early precambrian
• stratigraphic units
• inhul and inhulets series