A re-description of the historical stratotype for the Berriasian Stage (Cretaceous System): Biostratigraphy and magnetostratigraphy

IF 1.9 3区地球科学 Q1 GEOLOGY

Cretaceous Research Pub Date : 2024-03-29 DOI:10.1016/j.cretres.2024.105892

William A.P. Wimbledon , Tiiu Elbra , Petr Pruner , Petr Schnabl , Šimon Kdýr , Kristýna Šifnerová , Camille Frau , Luc Bulot , Diana Ölveczká , Andrea Svobodová , Radek Mikuláš , Daniela Reháková

引用次数: 0

Abstract

The historical stratotype for the Berriasian Stage (Cretaceous System) at Berrias (Ardèche, France) is here re-assessed. It shows a sedimentary record of early to late Berriasian age, part of the pelagic limestone succession of the western Vocontian Basin. We describe a studied section, circa 30 m in thickness, which yields calpionellids, calcareous dinocysts, calcareous nannofossils, and ammonites. The magnetostratigraphy of the section is revised, and calibrated with the biostratigraphy of these fossil groups. Magnetozones M19n to M15r (including M16n.1r) are identified and matched to the calpionellid zonation, with the Alpina to Oblonga biozones represented.

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重新描述柏里阿斯期（白垩系）的历史地层类型：生物地层学和磁地层学

本文重新评估了贝里亚斯（法国阿尔代什）贝里亚斯期（白垩系）的历史地层类型。它显示了早至晚贝里亚期的沉积记录，是西部沃康提盆地浮游石灰岩演替的一部分。我们描述了一个厚度约为 30 米的研究断面，该断面出土了钙质化石、钙质二叠体、钙质化石和氨虫。对该剖面的磁地层学进行了修订，并与这些化石群的生物地层学进行了校准。确定了 M19n 至 M15r（包括 M16n.1r）磁层带，并与钙钛矿分带相匹配，代表了阿尔卑斯山至奥布隆加生物带。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cretaceous Research 地学-地质学

CiteScore

4.10

自引率

19.00%

发文量

235

审稿时长

12 weeks

期刊介绍： Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.