| Geochemical Characteristics of Two Types of Ores from Jinshan Shear Zone—hosted Gold Deposit,Jiangxi,with a Discussion on the Mechanism of Two—stage Mineralization |
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| 引用本文： | 季峻峰,刘英俊,等.Geochemical Characteristics of Two Types of Ores from Jinshan Shear Zone—hosted Gold Deposit,Jiangxi,with a Discussion on the Mechanism of Two—stage Mineralization[J].中国地球化学学报,1995,14(4):353-360. |
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| 作者姓名： | 季峻峰 刘英俊 |
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| 作者单位： | [1]DepartmentofEarthSciences,NanjingUniversity,Nanjing210093 [2]DepartmentofEarthSciences,NanjingUniversity |
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| 摘 要： | Two types of gold ores,siliceous mylonite and quartz vein,formed at the first and second stages of mineralization respectively, can be clearly recognized in the shear zone-hosted gold deposit at Jinshan, Jiangxi.Similarity in REE and trace elements between the siliceous mylonite and the country rocks indicates that the ore metals were supplied by the surrounding strata during the first stage of mineralization.On the other hand, as indicated by fluid inclusion data,the ore-forming fluid at the second stage was of meteoric origin and the precipitation of gold was caused by phase separation.
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| 关 键 词： | 金矿床 地球化学 矿化作用 江西 剪切带 |
Geochemical characteristics of two types of ores from Jinshan shear zone-hosted gold deposit,Jiangxi, with a discussion on the mechanism of two-stage mineralization |
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| Junfeng Ji,Yingjun Liu,Chengyuan Sun,Detong Qiu,Qing Zheng.Geochemical characteristics of two types of ores from Jinshan shear zone-hosted gold deposit,Jiangxi, with a discussion on the mechanism of two-stage mineralization[J].Chinese Journal of Geochemistry,1995,14(4):353-360. |
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| Authors: | Junfeng Ji Yingjun Liu Chengyuan Sun Detong Qiu Qing Zheng |
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| Institution: | (1) Department of Earth Sciences, Nanjing University, 210093 Nanjing |
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| Abstract: | Two types of gold ores, siliceous mylonite and quartz vein, formed at the first and second stages of mineralization respectively,
can be clearly recognized in the shear zone-hosted gold deposit at Jinshan, Jiangxi. Similarity in REE and trace elements
between the siliceous mylonite and the country rocks indicates that the ore metals were supplied by the surrounding strata
during the first stage of mineralization. On the other hand, as indicated by fluid inclusion data, the ore-forming fluid at
the second stage was of meteoric origin and the precipitation of gold was caused by phase separation.
This project was financially supported by the National Natural Science Foundation of China. |
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| Keywords: | shear zone gold deposit geochemistry mechanism of two-stage mineralization Jiangxi |
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