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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 RiverTectonogeomorphic developmentFluviallacustrine sedimentsDetrital zircon U-Pb ageCosmogenic nuclideDrainage 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). |
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