Correlation of the palinozone of the Givetian deposits of Central Devonian field with the same-aged palynozones of Poland

Abstract

Introduction: Tracing the zones of the standard conodont scale in the territory of the Central Devonian Field (CDF) of the East European Platform (EEP) is difficult, since the Devonian deposits in this area are extremely shallow, and the leading types of standard scale appear only during transgressions. The purpose of the study was to conduct a mediated correlation of the Miospore zone and Givetian subzones of the CDF of EEP with the Standard Conodont Stratigraphic Scale. Methods: The selected and studied core material from 14 sections in the territory of the Central Devonian field served as the basis for the study. The total number of studied samples was 185. Results and discussion: The established miospore zonality of the Givetian CDF allowed to carry out an interregional correlation with the miospore zones of the coeval strata of Poland. An indirect correlation was made between the palynological sequence of the CDF and the palynological sequence of Poland, where the palynozones are tied to the International Conodont Scale. The palynozones and subzones of Poland are well comparable with the subzones of the CDF, have a similar miosporic zonality and a common index species of the palynozone and subzones. Conclusions: The distribution of index species of the zone and subzones, similar to the stratigraphic miospore markers, Geminospora lemurata morphon and guide taxa in the Givetian deposits of the CDF and Poland was revealed. The Geminospora extensa (EX) zone of the CDF corresponds to that in Poland, which is correlated with the International Conodont Standard. Accordingly, the zone (EX) of the CDF also corresponds to it.