气候变化领域集成服务门户(CCPortal): Palaeovegetation and palaeoclimate changes across the Triassic–Jurassic transition in the Sichuan Basin; China

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DOI	10.1016/j.palaeo.2020.109891
	Palaeovegetation and palaeoclimate changes across the Triassic–Jurassic transition in the Sichuan Basin; China
	Li L.; Wang Y.; Kürschner W.M.; Ruhl M.; Vajda V.
发表日期	2020
ISSN	0031-0182
卷号	556
英文摘要	The Triassic–Jurassic transition interval is marked by enhanced biotic turnover rates in both marine and terrestrial realms. However, limited data from Asia hampers the understanding of global ecosystem response to the end-Triassic mass extinction event. Here, we present significant vegetation and climate changes across the Triassic–Jurassic transition in the eastern Tethys region (southern China). A detailed palynological study was performed from the Qilixia section of the Sichuan Basin, China, spanning the Upper Triassic (Norian–Rhaetian) (Xujiahe Formation) to the Lower Jurassic (Hettangian–Sinemurian) (lower Zhenzhuchong Formation). Five palynological assemblages reveal significant ecosystem fluctuations across the Triassic–Jurassic transition. Our study indicates a lowland fern flora and a warm and humid climate in the Late Triassic (Norian to Rhaetian), interrupted by a cooler interval at the Norian–Rhaetian transition, and followed by a mixed mid-storey forest under cooler and drier condition in the latest Rhaetian. This is followed by a fern-dominated lowland vegetation and a warmer and drier climate during the Triassic–Jurassic transition, and a flora with abundant cheirolepid conifers in the Hettangian–Sinemurian. These long term changes in vegetation and inferred climatic conditions are comparable with records from the western Tethyan realm, and possibly reflect global terrestrial environmental changes associated with Central Atlantic Magmatic Province volcanism during the Triassic–Jurassic transition. © 2020 Elsevier B.V.
英文关键词	Eastern Tethys; Palynology; Terrestrial response; T–J transition; Xujiahe Formation; Zhenzhuchong Formation
语种	英语
scopus关键词	ecosystem response; fern; fossil record; Jurassic; mass extinction; paleobotany; paleoclimate; palynology; Tethys; Triassic; volcanism; Atlantic Ocean; Atlantic Ocean (Central); China; Sichuan Basin; Coniferophyta; Filicophyta
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/150380
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, East Beijing Road 39, Nanjing, 210008, China; Department of Palaeobiology, Swedish Museum of Natural History, Frescativägen 40, Stockholm, 10405, Sweden; Department of Geosciences, University of Oslo, P.O.Box 1047, Blindern, Oslo, 0316, Norway; Department of Geology & Irish Centre for Research in Applied Geosciences (iCRAG), Trinity College Dublin, The University of Dublin, College Green, Dublin 2, Ireland
推荐引用方式 GB/T 7714	Li L.,Wang Y.,Kürschner W.M.,等. Palaeovegetation and palaeoclimate changes across the Triassic–Jurassic transition in the Sichuan Basin; China[J],2020,556.
APA	Li L.,Wang Y.,Kürschner W.M.,Ruhl M.,&Vajda V..(2020).Palaeovegetation and palaeoclimate changes across the Triassic–Jurassic transition in the Sichuan Basin; China.Palaeogeography, Palaeoclimatology, Palaeoecology,556.
MLA	Li L.,et al."Palaeovegetation and palaeoclimate changes across the Triassic–Jurassic transition in the Sichuan Basin; China".Palaeogeography, Palaeoclimatology, Palaeoecology 556(2020).