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DOI	10.1016/j.epsl.2017.07.025
	Detrital zircon U-Pb geochronological and sedimentological study of, the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River
	Chen, Yi; Yan, Maodu; Fang, Xiaomin; Song, Chunhui; Zhang, Weilin; Zan, Jinbo; Zhang, Zhiguo; Li, Bingshuai; Yang, Yongpeng; Zhang, Dawen
通讯作者	Yan, MD (通讯作者)
发表日期	2017
ISSN	0012-821X
EISSN	1385-013X
起始页码	22
结束页码	33
卷号	476
英文摘要	The paleo-Red River is suggested to have been a continental-scale drainage system connecting the Tibetan Plateau to the South China Sea. However, the evolution of the paleo-Red River is still under debate. This study presents new results from sedimentological analyses and detrital zircon U-Pb geochronologic data from fluvial sedimentary rocks of Paleocene to Oligocene age of the Simao Basin to constrain the nature of the paleo-drainage system of the Red River. The detrital zircon U-Pb results reveal multiple age groups at 190-240 Ma, 260-280 Ma, 450-540 Ma, 1700-1900 Ma and 2400-2600 Ma for the Paleocene to late Eocene Denghei Formation (Fm.), but only one conspicuous peak at 220-240 Ma for the late Eocene-Oligocene Mengla Fm. Provenance analyses illustrate that the former likely had source areas that included the Hoh-Xil, Songpan-Ganzi, northern Qiangtang, Yidun and western Yangtze Terranes, which are consistent with the catchments of the Upper and Lower Jinshajiang Segments, whereas the latter mainly transported material from a limited number of sources, such as the Lincang granitic intrusions west of the Simao Basin. Integrated with available detrital zircon U-Pb geochronologic and paleogeographic data, our study suggests the existence of a paleo-Red River during the Paleocene to late Eocene that was truncated and lost its northern sources after approximately 35 Ma, due to left-lateral strike-slip faulting of the Ailao Shan-Red River and clockwise rotation of the Lanping-Simao Terrane. (C) 2017 Elsevier B.V. All rights reserved.
关键词	SHEAR ZONE TECTONIC EVOLUTION AILAO-SHAN PROVENANCE ANALYSIS CHINA IMPLICATIONS CRUSTAL EVOLUTION SOUTHEAST MARGIN WESTERN YUNNAN SURFACE UPLIFT HF ISOTOPES
英文关键词	Tibetan Plateau; Early Cenozoic; Red River evolution; detrital zircon U-Pb geochronology
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000412259400003
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259008
推荐引用方式 GB/T 7714	Chen, Yi,Yan, Maodu,Fang, Xiaomin,et al. Detrital zircon U-Pb geochronological and sedimentological study of, the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River[J]. 中国科学院青藏高原研究所,2017,476.
APA	Chen, Yi.,Yan, Maodu.,Fang, Xiaomin.,Song, Chunhui.,Zhang, Weilin.,...&Zhang, Dawen.(2017).Detrital zircon U-Pb geochronological and sedimentological study of, the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River.EARTH AND PLANETARY SCIENCE LETTERS,476.
MLA	Chen, Yi,et al."Detrital zircon U-Pb geochronological and sedimentological study of, the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River".EARTH AND PLANETARY SCIENCE LETTERS 476(2017).