The Parvicingulakhabakovi–Williriedellum salymicum Radiolarian Biohorizon in the West Siberian Bazhenov Formation (Berriasian–Valanginian)
- Autores: Vishnevskaya V.1, Gatovsky Y.2, Kozlova V.2
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Afiliações:
- Geological Institute, Russian Academy of Sciences
- Moscow State University
- Edição: Volume 53, Nº 8 (2019)
- Páginas: 808-811
- Seção: Article
- URL: https://journals.rcsi.science/0031-0301/article/view/168811
- DOI: https://doi.org/10.1134/S0031030119080239
- ID: 168811
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Resumo
Three-dimensional SEM images of the radiolarian species Williriedellum salymicum Kozlova, 1983 were obtained for the first time, from the Berriasian–Valanginian Parvicingula khabakovi – Williriedellum salymicum biohorizon of the Bazhenov Formation (based on material from the Gubkinskaya and Radonezh boreholes). Using computer tomography (CT) and scanning electron microscopy (SEM) methods, in addition to optical microscopy, we were able to confirm the validity of the species Williriedellum salymicum Kozlova, 1983 and we propose that this biohorizon be included in the Lower Cretaceous regional stratigraphic scheme of Western Siberia.
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Sobre autores
V. Vishnevskaya
Geological Institute, Russian Academy of Sciences
Autor responsável pela correspondência
Email: valentina.vishnaa@mail.ru
Rússia, Moscow, 119017
Y. Gatovsky
Moscow State University
Autor responsável pela correspondência
Email: gatovsky@geol.msu.ru
Rússia, Moscow, 119991
V. Kozlova
Moscow State University
Autor responsável pela correspondência
Email: veronikakozlv@gmail.com
Rússia, Moscow, 119991