气候变化领域集成服务门户(CCPortal): Integrative timescale for the Lopingian (Late Permian): A review and update from Shangsi, South China

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DOI	10.1016/j.earscirev.2018.11.002
	Integrative timescale for the Lopingian (Late Permian): A review and update from Shangsi, South China
	Yuan D.-X.; Shen S.-Z.; Henderson C.M.; Chen J.; Zhang H.; Zheng Q.-F.; Wu H.
发表日期	2019
ISSN	0012-9084
起始页码	190
结束页码	209
卷号	188
英文摘要	The Lopingian is the uppermost series of the Paleozoic and it is bracketed by two major biological events, including the pre-Lopingian crisis and the end-Permian mass extinction (EPME). A high resolution temporal framework is essential to understand the patterns and causes of the extinction. Lopingian strata of South China have been intensively studied because three GSSPs have been defined in the region. Based on the review and updates to data from the Shangsi section as well as correlation with the Meishan section, the time framework for the Lopingian is revised, including biostratigraphy, chemostratigraphy, magnetostratigraphy, cyclostratigraphy and geochronology. The temporal framework is constrained by both precise geochronologic data and a high resolution conodont succession, and provides the possibility that the current high resolution marine international standard can also be applied to nonmarine strata by means of geochronology, magnetostratigraphy and cyclostratigraphy. The entire Lopingian high resolution conodont succession is for the first time, since the Lopingian Series was adopted as the international standard, recognized at a single section in South China and the succession correlates very well with the Lopingian GSSP sections at Penglaitan and Meishan. The Permian-Triassic boundary (PTB) of the Shangsi section is constrained to the basal 6 cm interval of Bed 28b in view of ammonoids, bivalves, conodonts, U-Pb ages and the EPME. The mass extinction interval is between Bed 27 and lower Bed 28a according to the EPME pattern at the Shangsi section, and the alternative interval between extinct Permian species and new Triassic species is from upper Bed 28a to lower Bed 28b. Unitary Association (UA) analysis of Lopingian conodonts reveals 15 unitary association zones (UAZs) based on seven important Lopingian sections of South China. Most of the UAZs correlate well with the standard biozonation, except for UAZ 3 to UAZ 5 and UAZ 12. The correspondence between UAZs and standard conodont biozones at the Shangsi section provides a practical example to understand controls on conodont UAZ determination. The Lopingian conodont succession is temporally calibrated by geochronologic ages, identified 405-kyr eccentricity cycles, and a Monte Carlo analysis at the Shangsi and Meishan sections. Updated ages for the base of the Lopingian and base of the Changhsingian are provided. © 2018 Elsevier B.V.
英文关键词	Conodonts; End-Permian mass extinction; Geochronology; Lopingian; South China; Unitary associations
语种	英语
scopus关键词	conodont; geochronology; Lopingian; mass extinction; stratigraphic correlation; stratigraphy; timescale; China; Guangxi Zhuangzu; Shangsi; Ammonoidea; Bivalvia
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209983
作者单位	State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing, 210008, China; School of Earth Sciences and Engeering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China; Department of Geoscience, University of Calgary, Calgary, AB T2N 1N4, Canada; State Key Laboratory of Isotope Geochemistry, Chinese Academy of Sciences, Guangzhou Institute of Geochemistry, Guangzhou, 510640, China; CAS Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing, 210008, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, China
推荐引用方式 GB/T 7714	Yuan D.-X.,Shen S.-Z.,Henderson C.M.,et al. Integrative timescale for the Lopingian (Late Permian): A review and update from Shangsi, South China[J],2019,188.
APA	Yuan D.-X..,Shen S.-Z..,Henderson C.M..,Chen J..,Zhang H..,...&Wu H..(2019).Integrative timescale for the Lopingian (Late Permian): A review and update from Shangsi, South China.EARTH-SCIENCE REVIEWS,188.
MLA	Yuan D.-X.,et al."Integrative timescale for the Lopingian (Late Permian): A review and update from Shangsi, South China".EARTH-SCIENCE REVIEWS 188(2019).