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Palaeovegetation and palaeoclimate changes across the Triassic-Jurassic transition in the Sichuan Basin, China
Li, Liqin (李丽琴)1,2,3; Wang, Yongdong (王永栋)1,2; Kurschner, Wolfram M.4; Ruhl, Micha5,6; Vajda, Vivi3
2020-10-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume556Pages:16
Abstract

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.

KeywordT-J transition Terrestrial response Palynology Eastern Tethys Xujiahe Formation Zhenzhuchong Formation
DOI10.1016/j.palaeo.2020.109891
Indexed BySCI
Language英语
WOS KeywordIN-SITU SPORES ; TERRESTRIAL ECOSYSTEM CHANGE ; ATLANTIC MAGMATIC PROVINCE ; MASS-EXTINCTION ; FERTILE ORGANS ; JUNGGAR BASIN ; ISOTOPE STRATIGRAPHY ; PALYNOLOGICAL RECORD ; CLIMATE-CHANGE ; BOUNDARY
Funding ProjectNational 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 Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000561370700024
Funding OrganizationNational Science Foundation of China ; CAS ; State Key Laboratory of Palaeobiology and Stratigraphy ; Swedish Research Council ; Chinese Academy of Sciences
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/32181
Collection中国科学院南京地质古生物研究所
Corresponding AuthorWang, Yongdong (王永栋); Vajda, Vivi
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, East Beijing Rd 39, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, East Beijing Rd 39, Nanjing 210008, Peoples R China
3.Swedish Museum Nat Hist, Dept Palaeobiol, Frescativagen 40, S-10405 Stockholm, Sweden
4.Univ Oslo, Dept Geosci, POB 1047, N-0316 Oslo, Norway
5.Univ Dublin, Trinity Coll Dublin, Dept Geol, Dublin 2, Ireland
6.Univ Dublin, Trinity Coll Dublin, Irish Ctr Res Appl Geosci iCRAG, Dublin 2, Ireland
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
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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