Abstract
The state of paleontological study of the Kuyalnik deposits of Odessa region, in particular the stratotype section near Kryzhanivka village was analyzed. Attention is paid to the absence of the palynological description of the Krizhanivka climatolith in the section and the insufficient palynological study of the liman-marine Kuyalnik sediments. The goal of the presented research was to obtain a detailed palynological description of the subaerial Eopleistocene and the liman- marine Kuyalnik sediments of the stratotype section near Kryzhanivka village. Based on the results of the research, the palynological description of rocks of the upper part of the section of the liman-marine Kuyalnik sediments is presented for the first time, as well as the materials to substantiate the correlation of the studied sediments with the Beregove and Siversk climatolyths of the continental Upper Cenozoic section of Ukraine, which correspond to the Gelasian of the International Stratigraphic Scale (ISS). For the first time, palynological description of the Kryzhanivka climatolith correlated with the Calabriane of the ISS is presented for the studied section. Three subcomplexes are described in the composition of the Kryzhanivka complex. The characteristic features of the Kryzhanivka spore-pollen complex (SPC) and the changes in the ecological structure of each subcomplex are determined. Correlation of the established complex with the even-aged SPC of the Kryzhanivka deposits of the southern part of the Ukrainian Shield (the Eastern Azov Sea region). Outstanding questions of stratigraphic division of different facial deposits of the section based on palynological data are outlined. The necessity of further palynological studies of deposits of the section near Kryzhanivka village is substantiated.
Highlights
The Kuyalnik deposits of Odessa region have long been of considerable interest to research paleontologists, lithologists, and paleomagnetologists
The dominance of wood species in the pollen spectra including the high content and taxonomic diversity of broad-leaved species pollen of the moderate-warm zone and thermophilic plants approaches the described complex to the spore-pollen complexes (SPC) characterizing the coastal sediments of the section near Kulikovske village (Tab. 1.). This comparison requires further confirmation since at this stage of the research we were not able to isolate pollen and spores from rocks exposed by the second clearance (Fig. 2b) of the first outcrop traced at the bottom of the red-colored Kryzhanivka pedohorizon, which is strongly sandy, thinly laminated with thin layers of red-colored fossil soils
According to the taxonomic composition of pollen, the established SPC is close to the Kryzhanivka deposit complex of the section near Kulikovske village, (Sirenko, 2017)
Summary
The Kuyalnik deposits of Odessa region have long been of considerable interest to research paleontologists, lithologists, and paleomagnetologists. The taxonomic composition of the established SPC as well as a high content of herbaceous plant pollen in its composition belonging mainly to Chenopodiaceae family approaches it to the complexes of the middle part of the Kuyalnik deposit section of the Azov Sea as well as their continental analogues – the Siversk deposits of the Platform Ukraine.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
