Fluid inclusion and stable isotope constraints on the genesis of the world-class Zhuxi W(Cu) skarn deposit in South China

2020 ◽  
Vol 190 ◽  
pp. 104192 ◽  
Author(s):  
Xiao-fei Pan ◽  
Zeng-qian Hou ◽  
Miao Zhao ◽  
Yan Li ◽  
Yong-peng Ouyang ◽  
...  
Minerals ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 642 ◽  
Author(s):  
Wei Zhang ◽  
Shao-Yong Jiang ◽  
Tianshan Gao ◽  
Yongpeng Ouyang ◽  
Di Zhang

Whole-rock and apatite geochemical analyses and zircon U–Pb dating were carried out on the lamprophyres in the world-class Zhuxi W–Cu skarn deposit in northern Jiangxi, South China, in order to understand their origin of mantle sources and their relationship with the deposit, as well as metallogenic setting. The results show the lamprophyres were formed at ca. 157 Ma, just before the granite magmatism and mineralization of the Zhuxi deposit. These lamprophyres have from 58.98–60.76 wt% SiO2, 2.52–4.96 wt% K2O, 5.92–6.41 wt% Fe2O3t, 3.75–4.19 wt% MgO, and 3.61–5.06 wt% CaO, and enrichment of light rare earth elements (LREE) and large-ion lithophile elements (LILE), and depletion of high-field-strength elements (HFSE). Apatites in the lamprophyres are enriched in LREE and LILE, Sr, S, and Cl, and have 87Sr/86Sr ratios ranging from 0.7076 to 0.7078. The conclusions demonstrate that the lithospheric mantle under the Zhuxi deposit was metasomatized during Neoproterozoic subduction. Late Jurassic crustal extension caused upwelling of the asthenospheric mantle and consecutively melted the enriched lithospheric mantle and then crustal basement, corresponding to the formation of lamprophyres and mineralization-related granites in the Zhuxi deposit, respectively.


2021 ◽  
Author(s):  
Jia Guo ◽  
Rongqing Zhang ◽  
et al.

Additional figures (Figs. S1–S3), tables (Tables S1–S7), and methodology.


Lithos ◽  
2018 ◽  
Vol 312-313 ◽  
pp. 153-170 ◽  
Author(s):  
Shiwei Song ◽  
Jingwen Mao ◽  
Guiqing Xie ◽  
Zaiyu Yao ◽  
Guohua Chen ◽  
...  
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