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Carbon-Isotope, Conodont, and Magnetostratigraphic Data from the Key Kulyumbe River Sectionкнига
- Авторы: Pavlov Vladimir E., Dronov Andrey, Tolmacheva T., Krasnova E., New Larionov A.
- Год издания: 2024
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Объём: 342 страниц
- ISBN: 978-3-031-48757-6
- Монография
- Аннотация: The Kulyumbe River section (North-West of the Siberian Platform) is one of the most complete, best exposed, well studied and relatively easily accessible Cambrian-Ordovician successions on the entire Siberian Platform. It is a key section for regional correlation of the Furongian- Lower Ordovician interval in Siberia. However due to endemism of Siberian fauna and lack of the Iapetognathus fluctivagus conodonts as a marker of the base of the Ordovician System, the exact position of the Cambrian-Ordovician boundary in the section is still a matter of debate. The level, accepted currently for the Cambrian-Ordovician boundary, is based mainly on the conodonts succession of the Codylodus lineage (Tolmacheva & Abaimova, 2009). In our report we present new data on carbone-isotope and magnetostratigraphic records, on distribution of conodonts, which allow us to discuss the position of the Cambrian-Ordovician boundary in the Kulyumbe River section. These data determine a new confident level for correlation of transitional Siberian Cambrian-Ordovician layers with the International Stratigraphic Scale.
- Добавил в систему: Павлов Владимир Эммануилович