Palaeovegetation and palaeoclimate changes across the Triassic-Jurassic transition in the Sichuan Basin, China
Li, Liqin (李丽琴)3,4,5; Wang, Yongdong (王永栋)3,4; Kurschner, Wolfram M.1; Ruhl, Micha2,6; Vajda, Vivi5
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
2020-10-15
卷号556页码:16
关键词T-J transition Terrestrial response Palynology Eastern Tethys Xujiahe Formation Zhenzhuchong Formation
ISSN号0031-0182
DOI10.1016/j.palaeo.2020.109891
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.

资助项目National Science Foundation of China[NSFC 41702004] ; National Science Foundation of China[41790454] ; National Science Foundation of China[41572014] ; National Science Foundation of China[41688103] ; CAS[XDB18000000] ; CAS[XDB26000000] ; State Key Laboratory of Palaeobiology and Stratigraphy[20172103] ; State Key Laboratory of Palaeobiology and Stratigraphy[20191103] ; Swedish Research Council[VR 2019-4061] ; Chinese Academy of Sciences
WOS关键词IN-SITU SPORES ; TERRESTRIAL ECOSYSTEM CHANGE ; ATLANTIC MAGMATIC PROVINCE ; MASS-EXTINCTION ; FERTILE ORGANS ; JUNGGAR BASIN ; ISOTOPE STRATIGRAPHY ; PALYNOLOGICAL RECORD ; CLIMATE-CHANGE ; BOUNDARY
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000561370700024
资助机构National Science Foundation of China ; CAS ; State Key Laboratory of Palaeobiology and Stratigraphy ; Swedish Research Council ; Chinese Academy of Sciences
内容类型期刊论文
源URL[http://ir.nigpas.ac.cn/handle/332004/32180]  
专题中国科学院南京地质古生物研究所
通讯作者Wang, Yongdong (王永栋); Vajda, Vivi
作者单位1.Univ Oslo, Dept Geosci, POB 1047, N-0316 Oslo, Norway
2.Univ Dublin, Trinity Coll Dublin, Irish Ctr Res Appl Geosci iCRAG, Dublin 2, Ireland
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, East Beijing Rd 39, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, East Beijing Rd 39, Nanjing 210008, Peoples R China
5.Swedish Museum Nat Hist, Dept Palaeobiol, Frescativagen 40, S-10405 Stockholm, Sweden
6.Univ Dublin, Trinity Coll Dublin, Dept Geol, Dublin 2, Ireland
推荐引用方式
GB/T 7714
Li, Liqin ,Wang, Yongdong ,Kurschner, Wolfram M.,et al. Palaeovegetation and palaeoclimate changes across the Triassic-Jurassic transition in the Sichuan Basin, China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,556:16.
APA Li, Liqin ,Wang, Yongdong ,Kurschner, Wolfram M.,Ruhl, Micha,&Vajda, Vivi.(2020).Palaeovegetation and palaeoclimate changes across the Triassic-Jurassic transition in the Sichuan Basin, China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,556,16.
MLA Li, Liqin ,et al."Palaeovegetation and palaeoclimate changes across the Triassic-Jurassic transition in the Sichuan Basin, China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 556(2020):16.
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