U–Pb geochronology and Raman spectroscopy of zircons from the granites in the Xihuashan and Tieshanlong Deposit: Implications for W‐Sn mineralization in Southern Jiangxi Province, South China

IF 1.1 4区 地球科学 Q3 GEOLOGY
Resource Geology Pub Date : 2019-12-23 DOI:10.1111/rge.12226
Xiaofei Guo, Kaixing Wu, Yu Tian, Xiao-Bing Zhang
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引用次数: 3

Abstract

The Xihuashan and Tieshanlong tungsten deposit is an important large quartz vein‐type W‐polymetallic deposit in the southern Jiangxi Province, eastern Nanling Range. Zircon U–Pb analyses of representative ore‐forming granites from the Xihuashan and Tieshanlong tungsten deposit yield ages of 146.3 ± 2.9 Ma and 146.0 ± 3.8 Ma, respectively. According to the zircon Raman spectroscopy, these granitic rocks are disturbed by different degrees of hydrothermal alteration, whereas most zircons exhibit primary oscillatory zoning and Th/U ratios in the range of magmatic zircon, which means the analysis results represent the crystallization age of metallogenetic granitic assemblages. In combination with regional geological data, it is suggested that the Late Jurassic is probably another important episode of granitic magmatism and W‐Sn mineralization in southern Jiangxi Provinces, even South China.
西华山和铁山龙花岗岩中锆石的U-Pb年代学和拉曼光谱特征:对赣南钨锡矿化的指示意义
西华山、铁山龙钨矿床是赣南南岭山脉东部重要的大型石英脉型钨多金属矿床。西华山钨矿和铁山龙钨矿代表性成矿花岗岩锆石U-Pb分析,得出年龄分别为146.3±2.9 Ma和146.0±3.8 Ma。锆石拉曼光谱分析表明,这些花岗质岩石受到不同程度热液蚀变的干扰,而大部分锆石在岩浆锆石范围内表现出初级振荡分带和Th/U比值,说明分析结果代表了成矿花岗质组合的结晶年龄。结合区域地质资料,认为晚侏罗世可能是赣南乃至华南地区另一个重要的花岗质岩浆活动和钨锡成矿时期。
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来源期刊
Resource Geology
Resource Geology 地学-地质学
CiteScore
2.30
自引率
14.30%
发文量
18
审稿时长
12 months
期刊介绍: Resource Geology is an international journal focusing on economic geology, geochemistry and environmental geology. Its purpose is to contribute to the promotion of earth sciences related to metallic and non-metallic mineral deposits mainly in Asia, Oceania and the Circum-Pacific region, although other parts of the world are also considered. Launched in 1998 by the Society for Resource Geology, the journal is published quarterly in English, making it more accessible to the international geological community. The journal publishes high quality papers of interest to those engaged in research and exploration of mineral deposits.
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