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Cretaceous climate variations indicated by palynoflora in South China

文献类型：期刊论文

作者Wang, Jing-Yu3; Li, Xiang -Hui3; Li, Li -Qin1,2; Wang, Yong-Dong1,2
刊名PALAEOWORLD
出版日期2022-09-01
卷号31期号:3页码:507-520
ISSN号1871-174X
关键词sporomorph genera sporomorph eco-group palynofloral assemblages paleoclimate Cretaceous South China
DOI10.1016/j.palwor.2021.11.001
通讯作者Li, Xiang -Hui(seanlee@nju.edu.cn) ; Li, Li -Qin(lqli@nigpas.ac.cn)
英文摘要We compiled the Cretaceous sporopollen fossil data from 19 locations of six provinces in South China, reviewed the affinities of spore and pollen genera by examining and assessing these fossils with published data, and associated them with the sporomorph eco-groups (SEG) model and vegetation type. Seven palynofloral assemblages (PA1-PA7) were identified. PA1 (Berriasian-Valanginian) and PA2 (Hauterivian-Barremian) mainly include Cheirolepidiaceae (similar to 60-80%), Cycadophytes (similar to 10%), and Lygodiaceae (similar to 10%), indicating warm and dry climate; PA3 (Aptian) and PA4 (Albian) represent warm, semi-arid to semi-humid climate with vegetation composed of Araucariaceae (similar to 10%), Cheirolepidiaceae (similar to 40-60%), Cycadophytes (similar to 10%), and Lygodiaceae (similar to 10%); PA5 (Cenomanian-Turonian) and PA6 (Coniacian-Santonian) imply a hot, semi-humid to humid climate with the vegetation taxa of Lygodiaceae (similar to 20-40%), Cheirolepidiaceae (similar to 20-50%), Ephedraceae (-5-8%), and Araucariaceae (similar to 10%); and PA7 (Campanian-Maastrichtian) indicates a relatively cool and dry climate evidenced by the vegetation composition of Cheirolepidiaceae (similar to 30-40%), Pteridaceae (similar to 10%), Ephedraceae (similar to 5-8%), and Ulmaceae (similar to 30-40%). Our SEG analysis reveals three climatic evolution phases: the Berriasian-Barremian warmdry phase, the Aptian-Santonian warm-wet phase, and the Campanian-Maastrichtian cool-dry phase. The climatic variation pattern is compatible with that indicated by fossil stomatal pCO(2) values and the pCO(2) simulation of GEOCARB II and III models, providing independent climatic proxies of the region and contributing to better understanding of the global Cretaceous climatic changes. (C) 2021 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.
WOS关键词SPOROMORPH ECOGROUP MODEL ; ATMOSPHERIC CO2 ; CARBON-ISOTOPE ; FOSSIL GINKGO ; REVISED MODEL ; SICHUAN BASIN ; PALEOCLIMATE ; PROVINCE ; CHEIROLEPIDIACEAE ; RECONSTRUCTION
资助项目Natural Science Foundation of China Project[42172106] ; Natural Science Foundation of China Project[41372106] ; Natural Science Foundation of China Project[41790454] ; Natural Science Foundation of China Project[41688103] ; CAS[XDB18000000] ; CAS[XDB26000000]
WOS研究方向Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000842997000003
资助机构Natural Science Foundation of China Project ; CAS
源URL[http://ir.nigpas.ac.cn/handle/332004/41139]  
专题中国科学院南京地质古生物研究所
通讯作者Li, Xiang -Hui; Li, Li -Qin
作者单位1.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
3.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jing-Yu,Li, Xiang -Hui,Li, Li -Qin,et al. Cretaceous climate variations indicated by palynoflora in South China[J]. PALAEOWORLD,2022,31(3):507-520.
APA Wang, Jing-Yu,Li, Xiang -Hui,Li, Li -Qin,&Wang, Yong-Dong.(2022).Cretaceous climate variations indicated by palynoflora in South China.PALAEOWORLD,31(3),507-520.
MLA Wang, Jing-Yu,et al."Cretaceous climate variations indicated by palynoflora in South China".PALAEOWORLD 31.3(2022):507-520.

入库方式： OAI收割

来源：南京地质古生物研究所

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