Late Mississippian (early Serpukhovian) carbon isotope record of northern Laurussia: A proposal for the Viséan/ Serpukhovian boundary
| Autor: | Andrey V. Erofeevsky, Denis A. Gruzdev, Yadviga A. Vevel, Andrey V. Zhuravlev |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Revista Mexicana de Ciencias Geológicas. 40:35-43 |
| ISSN: | 2007-2902 1026-8774 |
| DOI: | 10.22201/cgeo.20072902e.2023.1.1722 |
| Popis: | The fauna provincialism in the interval led to the appearance of some problems with the tracing of this boundary with biostratigraphic methods. Therefore, it is important to determine auxiliary non-biostratigraphic markers of the boundary. The article is focused on the evaluation of the correlation potential of carbon isotope excursions near the Viséan/Serpukhovian boundary, with special attention to the northern Laurussia region. The biostratigraphically constrained carbon isotope record is revealed from the terminal Viséan ‑ lower Serpukhovian (Mississippian) shelf successions of the northern Laurussia (six key sections located in the north of Urals and Cis-Urals, NE Europe). Onset of a negative excursion in the middle part of the Lochriea ziegleri conodont Zone (lower Serpukhovian) shows amplitude of 1–2‰ and high spatial stability, and can be used as a stratigraphic marker in regional and global correlations. |
| Databáze: | OpenAIRE |
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