The Cretaceous–Paleogene Boundary in the Shapsug Section (Southern Slope of the Northwestern Caucasus)

The Cretaceous–Paleogene Boundary in the Shapsug Section (Southern Slope of the Northwestern Caucasus)

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 b...

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Veröffentlicht in:Paleontological journal 2024-04, Vol.58 (2), p.245-252
Hauptverfasser: Kochergin, D. V., Granovskaya, N. V.
Format: Artikel
Sprache:eng
Schlagworte:
Catastrophic events
Cretaceous
Earth and Environmental Science
Earth Sciences
Flysch
Iridium
Paleogene
Paleontology
Radiolaria
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Zusammenfassung: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.
ISSN:0031-0301
1555-6174
DOI:10.1134/S0031030123600270