气候变化领域集成服务门户(CCPortal): Cambrian small skeletal fossil and carbon isotope records of the southern Huangling Anticline; Hubei (China) and implications for chemostratigraphy of the Yangtze Platform

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DOI	10.1016/j.palaeo.2020.109817
	Cambrian small skeletal fossil and carbon isotope records of the southern Huangling Anticline; Hubei (China) and implications for chemostratigraphy of the Yangtze Platform
	Steiner M.; Yang B.; Hohl S.; Zhang L.; Chang S.
发表日期	2020
ISSN	0031-0182
卷号	554
英文摘要	Rich small skeletal fossil assemblages are described from the Yanjiahe Formation and Tianzhushan Member of southern Huangling Anticline. The Anabarites trisulcatus– Protohertzina anabarica Assemblage Zone (Small Skeletal Fossil Zone 1) is recognized in the middle to upper Yanjiahe Formation, while the thin topmost conglomeratic limestone unit yielded a mixed assemblage resulting from reworking and redeposition of source material of Small Skeletal Fossil Zones 1 to 3 (including Anabarites trisulcatus, Protohertzina anabarica, P. unguliformis, Watsonella crosbyi, Aldanella attleborensis, Anabarella plana). Our revised biostratigraphic correlation indicates the existence of longer hiatuses in the Yanjiahe Formation and between the Yanjiahe and Shuijingtuo formations. The obtained δ13Ccarb values in our profile deviate in some details from those of some previous reports. Based on the new biostratigraphic correlation, the δ13Ccarb trend records values oscillating between −3 to +4.4‰ in the upper Anabarites trisulcatus - Protohertzina anabarica Assemblage Zone, which is unusual for the Yangtze Platform. This interval of positive δ13Ccarb values in the upper Yanjiahe Formation and the Dahai Member of eastern Yunnan are here interpreted to reflect the impact of a local aquafacies. Moreover, it is here argued that the selection of a carbon isotope peak as a primary index tool in the Laolin section for defining the Cambrian Stage 2 must be treated with caution, as this isotope excursion is influenced by a regional water mass and does not reflect an open marine seawater signature, underlining other technical and theoretic concerns on the general application of chemostratigraphy in Cambrian shallow-water carbonate platforms. Overall we suggest that chemostratigraphic correlations need to be supported by biostratigraphic tools. © 2020 Elsevier B.V.
英文关键词	Aquafacies; Biostratigraphy; Correlation; Fortunian; Phosphatic microfossils; Stage 2
语种	英语
scopus关键词	biostratigraphy; Cambrian; carbon isotope; chemostratigraphy; fossil assemblage; fossil record; hiatus; skeleton; China; Hubei; Yangtze Platform; Anabarella plana; Watsonella
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150430
作者单位	Department of Earth Sciences, Freie Universität Berlin, Malteserstrasse 74-100, Haus D, Berlin, 12249, Germany; MNR Key Laboratory of Stratigraphy and Palaeontology, Institute of Geology, Chinese Academy of Geological Sciences, Baiwanzhuang Street 26, Beijing, 100037, China; State Key Laboratory for Marine Geology, School of Ocean and Earth Sciences, Tongji University, Siping Road 1239, Shanghai, 200092, China; School of Earth Sciences, China University of Geosciences (Wuhan), Wuhan, China; State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences (Wuhan), Wuhan, 430074, China
推荐引用方式 GB/T 7714	Steiner M.,Yang B.,Hohl S.,et al. Cambrian small skeletal fossil and carbon isotope records of the southern Huangling Anticline; Hubei (China) and implications for chemostratigraphy of the Yangtze Platform[J],2020,554.
APA	Steiner M.,Yang B.,Hohl S.,Zhang L.,&Chang S..(2020).Cambrian small skeletal fossil and carbon isotope records of the southern Huangling Anticline; Hubei (China) and implications for chemostratigraphy of the Yangtze Platform.Palaeogeography, Palaeoclimatology, Palaeoecology,554.
MLA	Steiner M.,et al."Cambrian small skeletal fossil and carbon isotope records of the southern Huangling Anticline; Hubei (China) and implications for chemostratigraphy of the Yangtze Platform".Palaeogeography, Palaeoclimatology, Palaeoecology 554(2020).