Tectono-thermal events of the North Qilian Orogenic Belt, NW China:Constraints from detrital zircon U-Pb ages of Heihe River sediments
Gong,HJ(Gong,Hujun)1,2; Zhao,H(Zhao,Hui)1; Xie,WB(Xie,Weibin)1; Kang,WD(Kang,Weidong)1; Zhang,R(Zhang,Rui)1,2; Yang,LR(Yang,Lirong)1,2; Zhang,YX(Zhang,Yunxiang)1,2; Song,JY(Song,Jiangyu)1; Zhang,YQ(Zhang,Yaqin)1; Gong,Hujun
2017-05-01
发表期刊Journal of Asian Earth Sciences
卷号138期号:2017页码:647-656
文章类型期刊论文
摘要Abstract The ∼800 km long Heihe River in northwestern China originates from the North Qilian Mountain, and passes through the Beishan Mountain before it reaches the Juyanhai Lake. Geologically, the river crosscuts the North Qilian Orogenic Belt, the Alax Terrane, and the Beishan Orogenic Belt. LA-ICP-MS U-Pb dating of detrital zircon from Heihe River sediments shows four age groups: 2700–1700 Ma, 1700–650 Ma, 650–358 Ma, and 358–230 Ma, and age peaks at ∼2450 Ma, ∼1850 Ma, ∼950 Ma, ∼520 Ma, 505 Ma, ∼480 Ma, ∼450 Ma, ∼430 Ma, ∼380 Ma, ∼320 Ma, and ∼295 Ma. The age distribution patterns indicate that Heihe River sediments were mainly sourced from the North Qilian Orogenic Belt. The detrital zircon ages demonstrate that the North Qilian Orogenic Belt may have Archean to late Paleoproterozoic rocks. Several tectonothermal events are also identified: opening of the North Qilian Ocean (part of the Paleo-Tethys Ocean) at early Neoproterozoic, subduction of oceanic lithosphere and formation of a trench-arc-basin system at late Neoproterozoic to late Ordovician, closure of the oceanic basin at late Ordovician, and collision of the Qaidam and Alax terranes at early Devonian. Our study indicates that the formation of the North Qilian Orogenic Belt was mainly related to the formation and closure of the Paleo-Tethys Ocean.
关键词Heihe River Sediments North Qilian Orogenic Belt Detrital Zircon U-pb Ages
DOI10.1016/j.jseaes.2017.03.003
收录类别SCI
所属项目编号41421002 ; 41372036 ; 41372020 ; 91025019 ; IRT1281
语种英语
项目资助者National Natural ScienceFoundation of China ; National Natural ScienceFoundation of China ; program for Changjiang Scholars and innovative Research Team in University ; program for Changjiang Scholars and innovative Research Team in University
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5618
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Gong,Hujun
作者单位1.State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, China
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China
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Gong,HJ,Zhao,H,Xie,WB,et al. Tectono-thermal events of the North Qilian Orogenic Belt, NW China:Constraints from detrital zircon U-Pb ages of Heihe River sediments[J]. Journal of Asian Earth Sciences,2017,138(2017):647-656.
APA Gong,HJ.,Zhao,H.,Xie,WB.,Kang,WD.,Zhang,R.,...&Gong,Hujun.(2017).Tectono-thermal events of the North Qilian Orogenic Belt, NW China:Constraints from detrital zircon U-Pb ages of Heihe River sediments.Journal of Asian Earth Sciences,138(2017),647-656.
MLA Gong,HJ,et al."Tectono-thermal events of the North Qilian Orogenic Belt, NW China:Constraints from detrital zircon U-Pb ages of Heihe River sediments".Journal of Asian Earth Sciences 138.2017(2017):647-656.
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