Abstract
A silicite horizon corresponding to the global catastrophic event at the Cretaceous–Paleogene boundary was found for the first time in the flysch sequence of the Shapsug section on the southern slope of the Northwest Caucasus. Assemblages of radiolarians and planktonic foraminifers dating the host beds were identified. Mineralogical and analytical data support the presence of tectites, impact minerals, and increased iridium content in the boundary bed of the studied section.
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ACKNOWLEDGMENTS
We are grateful to A.S. Alekseev (Moscow State University, Paleontological Institute, Russian Academy of Sciences) for valuable consultations during the identification of planktonic foraminifera and discussion of the problem in general. We remember with warmth and gratitude the dearly departed outstanding micropaleontologist V.N. Beniamovsky, who studied planktonic foraminifera of the Shapsug section.
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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.
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Kochergin, D.V., Granovskaya, N.V. The Cretaceous–Paleogene Boundary in the Shapsug Section (Southern Slope of the Northwestern Caucasus). Paleontol. J. 58, 245–252 (2024). https://doi.org/10.1134/S0031030123600270
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DOI: https://doi.org/10.1134/S0031030123600270