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Vegetation and climate of the central and northern Qinghai-Xizang plateau from the Middle Jurassic to the end of the Paleogene inferred from palynology
Li, Jianguo (李建国)1,2; Wu, Yixiao3,4; Batten, David J.5,6; Lin, Miaoqin3,4
2019-05-15
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
ISSN1367-9120
Volume175Pages:35-48
Abstract

The collision between India and Eurasia and the subsequent uplift of the Qinghai-Xizang plateau region of the Eurasian continent during the latest Mesozoic and Cenozoic had a significant environmental impact on the region. Understanding the vegetation of both palaeocontinents prior to the collision is crucial for interpreting the evolution of their floras and climatic changes during this period. The composition of the vegetation and climate of the plateau from the Middle Jurassic until the end of the Oligocene are inferred herein from the composition of 14 palynofloras and compared with other regions of China. The palynofloras are similar to those of eastern and northwestern parts of China but bear their own unique features brought about by differing climatic influences. Overall, a warm-hot, arid-semi-arid climate prevailed over the plateau during most of the period from the Middle Jurassic until the end of the Cretaceous. The climate cooled and humidity increased in the Paleogene, and especially during the Oligocene. The long-term climatic change in the Qinghai-Xizang plateau region of the Eurasian continent during the Middle Jurassic-Paleogene that is indicated by the miospore assemblages is broadly comparable to the isotope-based SST (sea-surface temperature) changes that have been identified. It is apparent that climatic changes on a global scale were primarily responsible for controlling the composition and distribution of the vegetation on the plateau; no monsoon features are detectable in the northwestern interior of China. A maximum estimation of 2890 m surface palaeoelevation is inferred for the central and northern plateau during the Oligocene based on vegetation analysis, which is lower than previous estimations based on oxygen isotope and coexistence analyses. The elevation of the southern part of the study area, i.e. the area south of the Gandise Mountains, was low, close to sea-level.

KeywordPalaeovegetation Palaeoelevation Indian-eurasian Collision Mesozoic Cenozoic Palynostratigraphy
DOI10.1016/j.jseaes.2018.08.012
Language英语
WOS KeywordIndia-asia Collision ; Tibetan Plateau ; Cretaceous Palynofloras ; Tectonic Evolution ; Lunpola Basin ; Late-eocene ; Paleoclimate ; Uplift ; Age ; Paleocene
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDA20070202] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB03010103] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41872004]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000464298500003
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/15760
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorLi, Jianguo (李建国)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Peoples R China
4.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China
5.Aberystwyth Univ, Dept Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales
6.Univ Manchester, Sch Earth Atmospher & Environm Sci, Oxford Rd, Manchester M13 9PL, Lancs, England
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Li, Jianguo ,Wu, Yixiao,Batten, David J.,et al. Vegetation and climate of the central and northern Qinghai-Xizang plateau from the Middle Jurassic to the end of the Paleogene inferred from palynology[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,175:35-48.
APA Li, Jianguo ,Wu, Yixiao,Batten, David J.,&Lin, Miaoqin.(2019).Vegetation and climate of the central and northern Qinghai-Xizang plateau from the Middle Jurassic to the end of the Paleogene inferred from palynology.JOURNAL OF ASIAN EARTH SCIENCES,175,35-48.
MLA Li, Jianguo ,et al."Vegetation and climate of the central and northern Qinghai-Xizang plateau from the Middle Jurassic to the end of the Paleogene inferred from palynology".JOURNAL OF ASIAN EARTH SCIENCES 175(2019):35-48.
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