Detrital zircon U-Pb geochronological and sedimentological study of, the Simao Basin, Yunnan: Implications for the Early Cenozoic evolution of the Red River

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
	Li, BS (Li, Bingshuai)1; Chen, Y (Chen, Yi)1,2; Yan, MD (Yan, Maodu)1,3; Fang, XM (Fang, Xiaomin)1,3; Song, CH (Song, Chunhui)4,5; Zhang, WL (Zhang, Weilin)1,3; Zan, JB (Zan, Jinbo)1,3; Zhang, ZG (Zhang, Zhiguo)1,2; Yang, YP (Yang, Yongpeng)1,2; Zhang, DW (Zhang, Dawen)1,3
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2017
卷号	476 期号:0 页码:22-33
关键词	Paleo-tethys Ocean Indo-china Block Tibetan Plateau Shear Zone Tectonic Evolution Ailao-shan Yangtze-river Sw China Provenance Analysis Crustal Evolution
DOI	10.1016/j.epsl.2017.07.025
文献子类	Article
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.
学科主题	地质学
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000412259400003
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/7963]
专题	青藏高原研究所_图书馆
通讯作者	Yan, MD
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China. 2.Univ Chinese Acad Sci, Beijing, Peoples R China. 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China. 4.Lanzhou Univ, Sch Earth Sci, Lanzhou, Peoples R China. 5.Lanzhou Univ, Key Lab Western Chinas Mineral Resources Gansu Pr, Lanzhou, Peoples R China.
推荐引用方式 GB/T 7714	Li, BS ,Chen, Y ,Yan, MD ,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]. EARTH AND PLANETARY SCIENCE LETTERS,2017,476(0):22-33.
APA	Li, BS .,Chen, Y .,Yan, MD .,Fang, XM .,Song, CH .,...&Yan, MD.(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(0),22-33.
MLA	Li, BS ,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 476.0(2017):22-33.