Petrogenesis of Jurassic tungsten-bearing granites in the Nanling Range, South China: Evidence from whole-rock geochemistry and zircon U-Pb and Hf-O isotopes
文献类型：期刊论文
| 作者 | Zhang, Yang1,2; Yang, Jin-Hui1,2; Chen, Jing-Yuan3; Wang, Hao1; Xiang, Yuan-Xin1,2 |
| 刊名 | LITHOS
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 278页码:166-180 |
| 关键词 | Tungsten-bearing granite Petrogenesis Zircon Hf-O isotopes Garnet South China |
| ISSN号 | 0024-4937 |
| DOI | 10.1016/j.lithos.2017.01.018 |
| 文献子类 | Article |
| 英文摘要 | The Nanling Range (NLR) is the largest tungsten metallogenic province in China and perhaps in the world. The tungsten mineralization is believed to be related to Jurassic granitic magmatism. However, the petrogenesis of these granites and their relation to the tungsten mineralization are still debated. Whole-rock geochemical and SrNdHf isotopic data and zircon in situ UPb ages and HfO isotopes are reported for W-bearing granitic intrusions from the southern Jiangxi Province in the NLR, in order to constrain their magmatic sources and petrogenesis. The NLR granites include biotite granites, two-mica granites and garnet muscovite granites. SIMS and LA-ICPMS U-Pb dating of zircons and monazites give emplacement ages of 161-154 Ma for these rocks. The granites are metaluminous to strongly peraluminous with high SiO2 (> 72.3 wt.%) and high K2O (> 3.7 wt.%). Petrographic and geochemical features show that they are highly fractionated I-type granites. The biotite granites are enriched in light rare earth elements (LREEs) relative to heavy REEs, have weakly negative Eu anomalies and are depleted in Nb, Ba, P and Ti. In contrast, the two-mica and garnet-bearing muscovite granites have tetrad-type REE patterns with strongly negative Eu anomalies and are extremely depleted in Ba, Nb, Sr, P and Ti. Magmatic garnets are mainly almandine and spessartine, and have low-Mn cores and high-Mn rims. Their (Y + HREE) contents are high and generally decrease from core (1.2 wt.%) to rim (average = 4955 ppm). All of these granites are characterized by variable whole-rock initial Sr-87/Sr-86 (0.7053-0.8000), epsilon(Nd)(t) (- 12.6 to - 9.4) and epsilon(Hf)(t) (- 12.3 to - 8.5), as well as variable zircon epsilon(Hf)(t) and delta O-18, with values of - 16.3 to - 7.4 and 7.6 to 10.0, respectively. They contain abundant zircon xenocrysts and xenoliths of micaceous schist. All of these features are consistent with a process of crystal fractionation of crustally-derived magmas coupled with strong assimilation of sedimentary rocks. The assimilation of meta-sedimentary materials increased the concentrations of tungsten, alumina and manganese in the magmas, whereas high degrees of crystal fractionation further enriched them in the evolved granitic rocks. The W-enriched magmatic fluids formed the tungsten-bearing quartz veins, revealing the genetic relationship between tungsten mineralization and emplacement of garnet-bearing two-mica or muscovite granites in the NLR. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | TETRAD REE PATTERNS ; A-TYPE GRANITES ; NOVA-SCOTIA ; SE CHINA ; ICP-MS ; I-TYPE ; POLYMETALLIC MINERALIZATION ; TECTONIC EVOLUTION ; XIHUASHAN GRANITES ; SOUTHEASTERN CHINA |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000399258500012 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China(41521062 ; Chinese Ministry of Science and Technology(201203416702) ; Hundred Talent and Ten Thousands Talent Programs ; 41602041) ; National Natural Science Foundation of China(41521062 ; Chinese Ministry of Science and Technology(201203416702) ; Hundred Talent and Ten Thousands Talent Programs ; 41602041) ; National Natural Science Foundation of China(41521062 ; Chinese Ministry of Science and Technology(201203416702) ; Hundred Talent and Ten Thousands Talent Programs ; 41602041) ; National Natural Science Foundation of China(41521062 ; Chinese Ministry of Science and Technology(201203416702) ; Hundred Talent and Ten Thousands Talent Programs ; 41602041) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/42208]  |
| 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 | Yang, Jin-Hui |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Changan Univ, Coll Earth Sci & Resources, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yang,Yang, Jin-Hui,Chen, Jing-Yuan,et al. Petrogenesis of Jurassic tungsten-bearing granites in the Nanling Range, South China: Evidence from whole-rock geochemistry and zircon U-Pb and Hf-O isotopes[J]. LITHOS,2017,278:166-180. |
| APA | Zhang, Yang,Yang, Jin-Hui,Chen, Jing-Yuan,Wang, Hao,&Xiang, Yuan-Xin.(2017).Petrogenesis of Jurassic tungsten-bearing granites in the Nanling Range, South China: Evidence from whole-rock geochemistry and zircon U-Pb and Hf-O isotopes.LITHOS,278,166-180. |
| MLA | Zhang, Yang,et al."Petrogenesis of Jurassic tungsten-bearing granites in the Nanling Range, South China: Evidence from whole-rock geochemistry and zircon U-Pb and Hf-O isotopes".LITHOS 278(2017):166-180. |
入库方式： OAI收割
来源：地质与地球物理研究所
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