气候变化领域集成服务门户(CCPortal): Palynostratigraphy of the Devonian–Carboniferous transition in the Tulong section in South Tibet: A Hangenberg Event sequence analogue in the Himalaya-Tethys zone

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DOI	10.1016/j.palaeo.2018.03.016
	Palynostratigraphy of the Devonian–Carboniferous transition in the Tulong section in South Tibet: A Hangenberg Event sequence analogue in the Himalaya-Tethys zone
	Liu F.; Kerp H.; Peng H.; Zhu H.; Peng J.
发表日期	2019
ISSN	0031-0182
卷号	531
英文摘要	Palynological assemblages from the Tulong succession in South Tibet enabled the recognition of three miospore biozones within the Zhangdong and ‘Yali’ formations. In ascending order, they are the Retispora lepidophyta–Verrucosisporites nitidus (LN) Biozone, the Vallatisporites vallatus–Foveosporites pellucidus (VP) Biozone and the Rugospora polyptycha–Tricidarisporites arcuatus (PA) Biozone. The LN Biozone in the Tulong section can be correlated to the LN Biozone of Western Europe, based on the first and last appearances of many index miospore species. However, Tournaisian palynological assemblages of Western Europe and South Tibet show compositional differences. The VP and PA biozones of South Tibet are correlated tentatively to the VI–HD and BP–TC biozones of Western Europe based on the occurrences of rare miospore index species in both regions. The Zhangdong and ‘Yali’ formations are now dated as Famennian to possibly earliest Visean. This age assessment is supported by rare conodonts and ammonoids recovered from intercalated limestones in the basal part of ‘Yali’ Formation. In the Everest region, the Devonian–Carboniferous boundary is now placed c. 10 m above the lower boundary of the ‘Yali’ Formation, which was originally suggested by Lin and Qiu (1985) to be position of the D–C boundary. Unlike western Gondwana, i.e. Bolivia and Brazil, the Himalaya-Tethys zone at the northeastern margin of Gondwana does not show obvious lithological evidence for glaciations. The new palynostratigraphic data, including information on sea-level changes reflected by variations in palynological composition and lithology around the Devonian–Carboniferous boundary allow, an interregional, approximate correlation with the classical Hangenberg Event sequence in the Rhenish Massif. The analogous Hangenberg Event sequence in South Tibet further supports the hypothesis that the rapid Hangenberg Event regression/transgression was a global eustatic event of significant magnitude. The co-occurrence of probably reworked Frasnian Geminospora lemurata and Archaeoperisaccus spores in the Himalaya-Tethys zone indicates the palaeogeographical proximity of the northern margin of Gondwana to the South China Block in the palaeoequatorial belt. © 2018 Elsevier B.V.
英文关键词	Gondwana; Indian craton; Pollen; Spore; Tournaisian; Visean
语种	英语
scopus关键词	biostratigraphy; craton; Devonian-Carboniferous boundary; Famennian; Frasnian; Gondwana; lithology; paleogeography; palynology; pollen; spore; Tethys; Tournaisian; transgression-regression cycle; Visean; Bolivia; Brazil; China; Rhenish Schiefergebirge; South China Block; Tulong; Western Europe; Xizang; Ammonoidea; Foveosporites; Geminospora lemurata; Vallatisporites; Verrucosisporites
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/150882
作者单位	Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China; State Key Laboratory of Palaeobiology and Stratigraphy, Chinese Academy of Sciences, Nanjing, China; Palaeobotany Research Group, University of Münster, Münster, Germany; University of Science and Technology of China, Hefei, China
推荐引用方式 GB/T 7714	Liu F.,Kerp H.,Peng H.,等. Palynostratigraphy of the Devonian–Carboniferous transition in the Tulong section in South Tibet: A Hangenberg Event sequence analogue in the Himalaya-Tethys zone[J],2019,531.
APA	Liu F.,Kerp H.,Peng H.,Zhu H.,&Peng J..(2019).Palynostratigraphy of the Devonian–Carboniferous transition in the Tulong section in South Tibet: A Hangenberg Event sequence analogue in the Himalaya-Tethys zone.Palaeogeography, Palaeoclimatology, Palaeoecology,531.
MLA	Liu F.,et al."Palynostratigraphy of the Devonian–Carboniferous transition in the Tulong section in South Tibet: A Hangenberg Event sequence analogue in the Himalaya-Tethys zone".Palaeogeography, Palaeoclimatology, Palaeoecology 531(2019).