Laurussia北部晚密西西比世(Serpukhovian早期)碳同位素记录:vissaman / Serpukhovian边界的建议

IF 0.6 4区地球科学 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Revista Mexicana De Ciencias Geologicas Pub Date : 2023-04-01 DOI:10.22201/cgeo.20072902e.2023.1.1722

Andrey V. Zhuravlev, Y. Vevel, D. Gruzdev, A. V. Erofeevsky

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引用次数: 0

摘要

这一时期的动物区系地方性导致了用生物地层学方法追踪这一边界出现了一些问题。因此，确定边界的辅助非生物地层标志是很重要的。本文重点评估了维塞安/谢尔普霍夫边界附近碳同位素偏移的相关性潜力，特别关注了劳俄斯北部地区。生物地层学约束的碳同位素记录是从Laurussia北部的Viséan‑lower Serpukhovian（Mississippian）陆架序列中揭示的（六个关键部分位于乌拉尔山脉北部和欧洲东北部的Cis Urals）。在Lochriea-ziegleri牙形石带中部（谢尔普霍维亚下段）出现负偏移，振幅为1-2‰，空间稳定性高，可作为区域和全球对比的地层标志。

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Late Mississippian (early Serpukhovian) carbon isotope record of northern Laurussia: A proposal for the Viséan/ Serpukhovian boundary

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.

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来源期刊

Revista Mexicana De Ciencias Geologicas 地学-地球科学综合

CiteScore

1.00

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Revista Mexicana de Ciencias Geológicas (RMCG) publishes original research papers on geological processes of broad interest, and particularly those dealing with regions of Latin America. The RMCG also publishes review papers on topics of current interest, and on the geology and tectonics of geological provinces of Latin America. Besides, it offers the opportunity for host editors to publish special thematic issues.