IOCAS-IR  > 海洋地质与环境重点实验室
Zircon U-Pb geochronology, Sr-Nd-Hf isotopic composition and geological significance of the Late Triassic Baijiazhuang and Lvjing granitic plutons in West Qinling Orogen
Duan, Meng1; Niu, Yaoling1,2,3; Kong, Juanjuan2; Sun, Pu2; Hu, Yan2; Zhang, Yu4; Chen, Shuo2; Li, Jiyong2
2016-09-01
发表期刊LITHOS
卷号260页码:443-456
文章类型Article
摘要The Qinling Orogen was a consequence of continental collision of the South China Craton with the North China Craton in the Triassic and caused widespread granitoid magmatism. However, the petrogenesis of these granitoids remains controversial. In this paper, we choose the Baijiazhuang (BJZ) and Lvjing (LJ) plutons in the West Qinling Orogen for a combined study of the zircon U-Pb geochronology, whole-rock major and trace element compositions and Sr-Nd-Hf isotopic characteristics. We obtained zircon crystallization ages of similar to 216 Ma and similar to 212 Ma for the BJZ and the LJ plutons, respectively. The granitoid samples from both plutons have high K2O metaluminous to peraluminous compositions. They are enriched in large ion lithophile elements (LILEs), light rare earth elements (LREEs) and depleted in high field-strength elements (HFSEs) with significant negative Eu anomalies. The BJZ samples have initial Sr isotopic ratios of 0.7032 to 0.7078, epsilon(Nd)(t) of -10.99 to -8.54 and epsilon(Hf)(t) of -1022 to -6.41. The LJ granitoids have initial Sr isotopic ratios of 0.7070 to 0.7080, epsilon(Nd)(t) of -5.37 to -4.58 and epsilon(Hf)(t) of -3.64 to -1.78. The enriched isotopic characteristics of the two plutons are consistent with their source being dominated by ancient continental crust. However, two BJZ samples show depleted Sr isotope compositions, which may infer possible involvement of mantle materials. Mantle-derived melt, which formed from partial melting of mantle wedge peridotite facilitated by dehydration of the subducted/subducting Mianlue ocean crust, provide the required heat for the crustal melting while also contributing to the compositions of these granitoids. That is, the two granitic plutons are magmatic responses to the closure of the Mianlue ocean basin and the continental collision between the Yangtze and South Qinling crustal terranes. (C) 2016 Elsevier B.V. All rights reserved.
关键词West Qinling Orogen Late Triassic Granitoid Plutons Lower Crust Melting Slab Break-off Mantle Wedge Melting
DOI10.1016/j.lithos.2016.04.015
收录类别SCI
语种英语
WOS记录号WOS:000381529800032
引用统计
被引频次:25[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/135878
专题海洋地质与环境重点实验室
作者单位1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Duan, Meng,Niu, Yaoling,Kong, Juanjuan,et al. Zircon U-Pb geochronology, Sr-Nd-Hf isotopic composition and geological significance of the Late Triassic Baijiazhuang and Lvjing granitic plutons in West Qinling Orogen[J]. LITHOS,2016,260:443-456.
APA Duan, Meng.,Niu, Yaoling.,Kong, Juanjuan.,Sun, Pu.,Hu, Yan.,...&Li, Jiyong.(2016).Zircon U-Pb geochronology, Sr-Nd-Hf isotopic composition and geological significance of the Late Triassic Baijiazhuang and Lvjing granitic plutons in West Qinling Orogen.LITHOS,260,443-456.
MLA Duan, Meng,et al."Zircon U-Pb geochronology, Sr-Nd-Hf isotopic composition and geological significance of the Late Triassic Baijiazhuang and Lvjing granitic plutons in West Qinling Orogen".LITHOS 260(2016):443-456.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Zircon U-Pb geochron(2218KB)期刊论文出版稿限制开放CC BY-NC-SA浏览
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Duan, Meng]的文章
[Niu, Yaoling]的文章
[Kong, Juanjuan]的文章
百度学术
百度学术中相似的文章
[Duan, Meng]的文章
[Niu, Yaoling]的文章
[Kong, Juanjuan]的文章
必应学术
必应学术中相似的文章
[Duan, Meng]的文章
[Niu, Yaoling]的文章
[Kong, Juanjuan]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Zircon U-Pb geochronology, Sr-Nd-Hf isotopic composition and geological significance of the Late Triassic Baijiazhuang and Lvjing granitic plutons in West Qinling Orogen.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。