气候变化领域集成服务门户(CCPortal): Mid-Pleistocene drainage rearrangement of the Dadu River in response to plate convergence in southeastern Tibet

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DOI	10.1017/qua.2022.71
	Mid-Pleistocene drainage rearrangement of the Dadu River in response to plate convergence in southeastern Tibet
	Zheng, Yong; Li, Haibing; Pan, Jiawei; Gong, Zheng; Wang, Ping; Lai, Ya; Zhao, Zhongbao; Liu, Fucai
发表日期	2023
ISSN	0033-5894
EISSN	1096-0287
起始页码	130
结束页码	147
卷号	114
英文摘要	The rearrangement of drainage basins provides critical insight into crustal deformation and geodynamic mechanisms. Near the southeastern boundary of the Tibetan Plateau, the Dadu River abruptly shifts from south- to east-flowing, providing important implications for regional tectonogeomorphic development since the mid-Pleistocene. South of the bend, the headwaters of the Anning River occupy an unusually wide valley. Field investigations show that large quantities of fluvial/lacustrine sediments are widespread along the Dadu and Anning rivers and are exposed at their drainage divide. Detrital zircon U-Pb age patterns confirm that these fluvial/lacustrine sediments are the remnants of the paleo-Dadu River, which strongly suggests that the paleo-Dadu River originally flowed southward into the Anning River. The cosmogenic nuclide burial ages of the lacustrine sediments along the Dadu and Anning rivers suggest deposition of these sediments from separate dammed lakes ca. 1.2 Ma ago, ca. 0.6 Ma ago, and ca. 0.9 Ma ago from north to south, respectively. Provenance and burial-age studies indicate that reorganization of the Dadu drainage occurred within the last 0.6 Ma. We propose that this drainage reorganization in southeastern Tibet resulted from progressive convergence between the India and Eurasian plates during the Pleistocene.
关键词	Dadu River Tectonogeomorphic development Fluvial lacustrine sediments Detrital zircon U-Pb age Cosmogenic nuclide Drainage reorganization
英文关键词	U-PB; RELIEF GENERATION; XIANSHUIHE FAULT; EASTERN MARGIN; SOUTH CHINA; SHEAR ZONE; SLIP-RATE; YANGTZE; PROVENANCE; EVOLUTION
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000943846300001
来源期刊	QUATERNARY RESEARCH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283159
作者单位	China Geological Survey; Institute of Geology, Chinese Academy of Geological Sciences; Chinese Academy of Geological Sciences; Ministry of Natural Resources of the People's Republic of China; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Guangzhou); Korea University; China Earthquake Administration; China Earthquake Administration; Geophysical Exploration Center, CEA
推荐引用方式 GB/T 7714	Zheng, Yong,Li, Haibing,Pan, Jiawei,et al. Mid-Pleistocene drainage rearrangement of the Dadu River in response to plate convergence in southeastern Tibet[J],2023,114.
APA	Zheng, Yong.,Li, Haibing.,Pan, Jiawei.,Gong, Zheng.,Wang, Ping.,...&Liu, Fucai.(2023).Mid-Pleistocene drainage rearrangement of the Dadu River in response to plate convergence in southeastern Tibet.QUATERNARY RESEARCH,114.
MLA	Zheng, Yong,et al."Mid-Pleistocene drainage rearrangement of the Dadu River in response to plate convergence in southeastern Tibet".QUATERNARY RESEARCH 114(2023).