| 五圩多金属矿田包裹体地球化学特征研究 |
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| 引用本文： | 蔡建明,徐新煌,李保华.五圩多金属矿田包裹体地球化学特征研究[J].成都理工大学学报(自然科学版),1995(1). |
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| 作者姓名： | 蔡建明 徐新煌 李保华 |
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| 作者单位： | 成都理工学院资源与经济系 |
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| 摘 要： | 大量包裹体研究表明，五圩多金属矿田属中─低温热液成因，热液来自局部动热变质作用产生的变质热液和部分岩浆热液的混合。矿床分带性明显，并具多阶段矿化特征。空间上自矿化中心向外，时间上从早至晚，不仅包裹体特点有变化，而且温度、压力、含盐度、成分、氧逸度、ＣＯ２逸度等方面也有逐渐降低的变化规律。ＣＯ２包裹体大量出现和高比值ＣＯ２／Ｈ２Ｏ可作为直接的找矿标志。
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| 关 键 词： | 五圩矿田，流体包裹体，地球化学特征，成因信息 |
A STUDY OF THE GEOCHEMICAL CHARACTERISTIC OF INCLUSIONS IN THE WUXU POLYMETALLIC ORE FIELD |
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| Cai Jianming, Xu Xinhuang, Li Baohua.A STUDY OF THE GEOCHEMICAL CHARACTERISTIC OF INCLUSIONS IN THE WUXU POLYMETALLIC ORE FIELD[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1995(1). |
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| Authors: | Cai Jianming Xu Xinhuang Li Baohua |
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| Institution: | Cai Jianming; Xu Xinhuang; Li Baohua |
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| Abstract: | Researches on a large number of inclusions indicate that the Wuxu polymetallic ore field producing Pb, Zn,Sb, Hg and As is of epithermal to mesothermal origin. The hydrothermal solution comes from the mixing of metamorphic fluid produced by local dynamothermal metamorphism and partial magmatic water. The deposit has clear zoning and the character of multistage mineralization. From the center of mineralization to the outside in space and from early stage to late stage in time, not only there are changes in the characteristics of the inclusion, but also there is a law of gradual drop in temperature, pressure, salinity, composition, fo2 and fco2. and fco2. The appearance of a large number of CO2-bearing inclusions and the high CO2/H2O ratio can be used for the direct criteria of ore prospecting. |
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| Keywords: | Wuxu orefield fluid inclusion geochemical characteristic ore-bearing information |
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