Geochemistry and Sr-Nd-Hf-Pb isotope systematics of late Carboniferous sanukitoids in northern West Junggar, NW China: Implications for initiation of ridge-subduction
文献类型：期刊论文
| 作者 | Zhang, Zhiguo1,3; Liu, Xijun1,2,3; Xiao, Wenjiao2,5; Xu, Ji-Feng1,4; Shi, Yu1; Gong, Xiaohan4; Hu, Rongguo1; Liu, Pengde1; Song, Yujia1; Xiao, Yao1 |
| 刊名 | GONDWANA RESEARCH
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 99页码:204-218 |
| 关键词 | Initiation of ridge-subduction Sanukitoid Sr-Nd-Hf-Pb isotopes West Junggar Central Asian Orogenic Belt |
| ISSN号 | 1342-937X |
| DOI | 10.1016/j.gr.2021.07.008 |
| 英文摘要 | The study of Carboniferous magmatism in northern West Junggar plays an important role in understanding the tectonic evolution of that part of the Central Asian Orogenic Belt. In this study, we present petrology, zircon U-Pb geochronology, mineral and whole-rock geochemistry, and the Sr-Nd-Hf-Pb isotope compositions of volcanic rocks from the Hamutusi area of northern West Junggar. LA-ICP-MS zircon U-Pb analysis of a representative andesite yielded an early to late Carboniferous age of 324.4 +/- 6.9 Ma. The volcanic rocks are calc-alkaline, with high SiO2 (54.2-57.8 wt%), MgO (5.97-8.33 wt%), Mg# (60-69), Cr (147-448 ppm), and Ni (29.1-120 ppm) contents, and are enriched in large ion lithophile elements (LILE) and light rare earth elements (LREE), but depleted in high field strength elements (HFSE), these characteristics are similar to those of typical sanukitoids within the Setouchi volcanic belt in Japan. All samples have radiogenic initial Sr and Pb isotopic compositions, and low eNd(t) and eHf(t) values, indicating the sanukitoids were generated by partial melting of subducting sediments in which the melts interacted with the mantle. Geochemical modeling calculations indicate a proportion of 3-10% sediment melt and slab-derived fluids were mixed with the depleted mantle to produce the bulk of the Hamutusi rocks. We conclude that the studied rocks from north West Junggar record the initiation of ridge subduction related to a transition from normal subduction to subduction of young and hot oceanic lithosphere between the early and late Carboniferous. (c) 2021 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | SETOUCHI VOLCANIC BELT ; ASIAN OROGENIC BELT ; HIGH-MG ANDESITES ; HIGH-MAGNESIAN ANDESITES ; U-PB ; TECTONIC IMPLICATIONS ; TRACE-ELEMENT ; OPHIOLITIC MELANGE ; CONTINENTAL-CRUST ; BAJA-CALIFORNIA |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000709515300001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103015]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Liu, Xijun |
| 作者单位 | 1.Guilin Univ Technol, Coll Earth Sci, Guangxi Key Lab Hidden Met Ore Deposits Explorat, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Xinjiang Res Ctr Mineral Resources, Urumqi 830011, Peoples R China 3.Guilin Univ Technol, Collaborat Innovat Ctr Explorat Nonferrous Met De, Guilin 541004, Peoples R China 4.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhiguo,Liu, Xijun,Xiao, Wenjiao,et al. Geochemistry and Sr-Nd-Hf-Pb isotope systematics of late Carboniferous sanukitoids in northern West Junggar, NW China: Implications for initiation of ridge-subduction[J]. GONDWANA RESEARCH,2021,99:204-218. |
| APA | Zhang, Zhiguo.,Liu, Xijun.,Xiao, Wenjiao.,Xu, Ji-Feng.,Shi, Yu.,...&Li, Dechao.(2021).Geochemistry and Sr-Nd-Hf-Pb isotope systematics of late Carboniferous sanukitoids in northern West Junggar, NW China: Implications for initiation of ridge-subduction.GONDWANA RESEARCH,99,204-218. |
| MLA | Zhang, Zhiguo,et al."Geochemistry and Sr-Nd-Hf-Pb isotope systematics of late Carboniferous sanukitoids in northern West Junggar, NW China: Implications for initiation of ridge-subduction".GONDWANA RESEARCH 99(2021):204-218. |
入库方式： OAI收割
来源：地质与地球物理研究所
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