气候变化领域集成服务门户(CCPortal): Formation and evolution of Gobi Desert in central and eastern Asia

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DOI	10.1016/j.earscirev.2019.04.014
	Formation and evolution of Gobi Desert in central and eastern Asia
	Lu H.; Wang X.; Wang X.; Chang X.; Zhang H.; Xu Z.; Zhang W.; Wei H.; Zhang X.; Yi S.; Zhang W.; Feng H.; Wang Y.; Wang Y.; Han Z.
发表日期	2019
ISSN	00128252
起始页码	251
结束页码	263
卷号	194
英文摘要	Although the development of Gobi Desert in central and eastern Asia has greatly affected the regional and even the global climate, its precise origin and evolution have yet to be determined. The three preconditions for the formation of Gobi Desert are: i) a dry climate, ii) basin landforms and iii) abundant sediment production. In this study, we present a synthesis of both new and published data on the formation and evolution of Gobi Desert in central and eastern Asia. We conclude that the combined effects of mountain building, the mid-latitude westerly circulation and changes in the Asian monsoon, accompanied by global cooling, were principally responsible for the formation of modern Gobi Desert landscapes in central and eastern Asia during the late Pliocene. The arid climate in central and parts of eastern Asia probably developed in the early Cenozoic, from ~50 Ma. Related events included the collision of the Indian and Asian plates, the closure and complete retreat of the Paratethys Ocean from central Asia, and the growth of the Himalayas and the Tibetan Plateau in the Eocene through late Miocene, which blocked the water vapor supply and intensified the aridification of the Asian interior. Superimposed on the topographic changes was the process of stepwise global cooling since the early Oligocene, and in particular since the late Miocene, which controlled the formation and evolution of the Gobi Desert landscape. Global cooling weakened the Asian monsoon circulation, strengthened the westerly circulation and enhanced physical weathering processes in mountain areas, which together promoted both the aridification of the Asian interior and sediment production. These processes finally resulted in the establishment of the modern Gobi Desert landscape in the late Pliocene. We estimate that the modern Gobi Desert landscape was formed at ~2.6 Ma and was the result of the stepwise evolution of Asian topography and climate during the Cenozoic, dominated by Asian tectonic deformation and uplift, and the evolution of Asian monsoon climate and the westerly circulation, forced by global temperature change. © 2019 Elsevier B.V.
关键词	Asian monsoon Cenozoic era Central and eastern Asia Formation of Asian Gobi Desert Gobi Desert Late Pliocene
英文关键词	Cenozoic; climate change; deformation; geomorphology; landscape evolution; monsoon; sediment transport; tectonic evolution; temperature anomaly; uplift; weathering rate; Gobi Desert
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203494
作者单位	School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; State Key Laboratory of Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China
推荐引用方式 GB/T 7714	Lu H.,Wang X.,Wang X.,et al. Formation and evolution of Gobi Desert in central and eastern Asia[J],2019,194.
APA	Lu H..,Wang X..,Wang X..,Chang X..,Zhang H..,...&Han Z..(2019).Formation and evolution of Gobi Desert in central and eastern Asia.Earth Science Reviews,194.
MLA	Lu H.,et al."Formation and evolution of Gobi Desert in central and eastern Asia".Earth Science Reviews 194(2019).