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Palynofloral evolution on the northern margin of the Indian Plate, southern Xizang, China during the Cretaceous Period and its phytogeographic significance
Li, Jianguo (李建国)1; Wu, Yixiao2,3; Peng, Jungang (彭俊刚)2; Batten, David J.4,5
2019-02-01
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume515Pages:107-122
Abstract

During the Cretaceous Period, the Indian Plate separated from Gondwana and drifted northwards, eventually colliding with Eurasia at the end of the period or in the early Cenozoic. This led to major changes in the composition of the flora and fauna of the region. Palynomorph assemblages from Cretaceous deposits in Gamba County, southern Xizang (Tibet), China, are analyzed herein in an attempt to determine how the vegetation of the northern margin of the Indian Plate changed. The Gamba assemblages were initially similar in composition to those from Australia but by the Santonian Stage they were more similar to those of North Africa. Differences from the former are increasingly apparent through the Albian Cenomanian transition. The rate of evolution of the Gamba flora was about the same as that of the Australian flora prior to the Albian, somewhat slower during this stage, but faster from the Cenomanian onwards, implying that this was, to a large extent, a result of the separation of the Indian Plate from Gondwana and its northward drift during the Cretaceous Period. During the Albian, the Australian block drifted eastwards whereas the Indian Plate remained relatively static. This resulted in few changes in the Gamba palynoflora but many in palynofloras from Australia. However, the northward movement of the Indian Plate in the Late Cretaceous led to pronounced changes, with numerous inceptions of genera and species in the Gamba succession. Of these, many have an African or equatorial distribution and none has connections with Australia, indicating that the climate at this time was similar to that of North Africa and that separation from Australia was complete. The arrival of the Indian Plate in equatorial regions allowed floral exchange between its northern part and North Africa during the Santonian.

KeywordTerrestrial Ecosystem Pollen And Spores Tethys Gondwana Break-up Plate Movements
DOI10.1016/j.palaeo.2017.09.014
Language英语
WOS KeywordStratigraphy ; Palynostratigraphy ; Palynology ; Sediments ; Pollen ; Desert ; Tibet ; Basin
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB03010103] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18030501] ; National Natural Science Foundation of China[41172011]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000457811700009
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16018
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, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
3.Chinese Univ Sci & Technol, Hefei 230026, Anhui, Peoples R China
4.Aberystwyth Univ, Dept Geog & Earth Sci, Aberystwyth SY23 3DB, Dyfed, Wales
5.Univ Manchester, Sch Earth Atmospher & Environm Sci, Oxford Rd, Manchester M13 9PL, Lancs, England
Recommended Citation
GB/T 7714
Li, Jianguo ,Wu, Yixiao,Peng, Jungang ,et al. Palynofloral evolution on the northern margin of the Indian Plate, southern Xizang, China during the Cretaceous Period and its phytogeographic significance[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2019,515:107-122.
APA Li, Jianguo ,Wu, Yixiao,Peng, Jungang ,&Batten, David J..(2019).Palynofloral evolution on the northern margin of the Indian Plate, southern Xizang, China during the Cretaceous Period and its phytogeographic significance.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,515,107-122.
MLA Li, Jianguo ,et al."Palynofloral evolution on the northern margin of the Indian Plate, southern Xizang, China during the Cretaceous Period and its phytogeographic significance".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 515(2019):107-122.
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