气候变化领域集成服务门户(CCPortal): The zircon story of the Pearl River (China) from Cretaceous to present

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DOI	10.1016/j.earscirev.2019.103078
	The zircon story of the Pearl River (China) from Cretaceous to present
	He J.; Garzanti E.; Cao L.; Wang H.
发表日期	2020
ISSN	00128252
卷号	201
英文摘要	The modern Pearl River originates from SE Tibet and debouches into the South China Sea. The development of the Pearl River is closely related to the evolving topography following the tectonic evolution of the southern China continental margin and uplift of Tibet caused by the India-Eurasia collision. How topographic changes affected the development of the Pearl River, however, is still unclear. Here we use original and literature data on detrital zircon ages from both modern Pearl River sands and ancient strata drilled in offshore basins to reconstruct the evolution of the paleo-Pearl River catchment through time. Six phases are identified: 1) Early Cretaceous: the paleo-Pacific plate was subducting beneath the South China block and topography in South China was tilted to the west. The paleo-Dong River began to develop with limited length. 2) Late Cretaceous: back-arc extension in the South China Sea contributed further to the west-tilted topography. The paleo-Bei River started to develop and the paleo-Dong River continued to expand across southeasternmost China. 3) Paleocene to Eocene: active rifting in the South China Sea induced a major topographic change. The paleo-Dong and paleo-Bei joined, forming the paleo-Lower Xi River. 4) Early Oligocene: active uplift of Tibet and onset of sea-floor spreading in the South China Sea led to subsidence in the Cathaysia block. The paleo-Dong, paleo-Bei, and paleo-Lower Xi rivers remained limited to eastern Cathaysia. 5) Late Oligocene: accelerated uplift of eastern Tibet and post-rift subsidence of the northern South China Sea margin induced a radical change in the landscape of southern China, and transition from west-tilting to east-tilting topography. The paleo-Pearl River started to incorporate also its present western branches. 6) Early to middle Miocene: the east-tilting topography was enhanced during rapid uplift of Tibet and progressive closure of the proto-South China Sea, while the Pearl River evolved to its present configuration. © 2019 Elsevier B.V.
关键词	Detrital zircon geochronology Paleotopographic reconstructions Pearl River drainage basin Sediment provenance South China Sea Tibetan Plateau
英文关键词	backarc basin; basin evolution; Cretaceous; drainage basin; paleotopography; provenance; structural geology; subduction; uplift; zircon; China; Guangdong; Pacific Ocean; South China Sea; Zhujiang River
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/203733
作者单位	School of Earth Resources, China University of Geosciences, Wuhan, 430074, China; Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences, Wuhan, 430074, China; Laboratory for Provenance Studies, Department of Earth and Environmental Sciences, University of Milano-Bicocca, Milano, 20216, Italy; College of Marine Science and Technology, China University of Geosciences, Wuhan, 430074, China
推荐引用方式 GB/T 7714	He J.,Garzanti E.,Cao L.,et al. The zircon story of the Pearl River (China) from Cretaceous to present[J],2020,201.
APA	He J.,Garzanti E.,Cao L.,&Wang H..(2020).The zircon story of the Pearl River (China) from Cretaceous to present.Earth Science Reviews,201.
MLA	He J.,et al."The zircon story of the Pearl River (China) from Cretaceous to present".Earth Science Reviews 201(2020).