| 热液金矿床控矿断裂性质与成矿流体的物理化学 |
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| 引用本文：徐九华,谢玉玲,申世亮.1998.热液金矿床控矿断裂性质与成矿流体的物理化学[J].地球学报,19(1):204-209. |
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| 基金项目:冶金工业部人教司有偿与资助基金 |
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| 中文摘要:热液金矿床的成矿物理化学条件与控矿断裂构造环境有着密切联系。作者对比了不同构造环境（小秦岭、焦家、玲珑和太白金矿）流体包裹体物理化学参数特征，表明韧性剪切带环境中的金矿成矿流体压力大、ＣＯ２／Ｈ２Ｏ数值也高。不同构造环境中流体Ｋ＋／Ｎａ＋、Ｆ－／Ｃｌ－的差别不仅与容矿岩石化学特征有关，也与构造应力作用有关，同一矿田内，甚至同一断裂带内，因所处构造部位不同，成矿流体压力也不同，致使其他物理化学参数的系统变化，这对地质找矿具有实际意义。 |
| 中文关键词:金矿床 构造环境 包裹体 物理化学参数 |
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| Tectonic Environment of Hydrothermal Gold Deposits and Physico_chemistry of Ore_forming Fluid |
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| Abstract:Metallogenic physico_chemical conditions of hydrothermal gold deposits are greatly associated with ore_controlling fault environment .A comparison of physico_chemical parameters of fluid inclusions from different tectonic environments(including Xiaoqinling,Jiaojia,Linglong and Taibei gold deposits)has been studied .The result shows that the pressures of ore_forming fluids of gold deposits in ductile shear zones are higher,so the values of CO 2/H 2O of fluid inclusions are high.K +/Na + and F -/Cl - of fluid inclusions varies in different tectonic environments,which is not only related to chemistry of host rocks,but also related to tectonic stress.Because ore_forming fluid pressures vary,other parameters of physico_chemistry change sysmaticly,very useful for gold prospecting. |
| keywords:gold deposit tectonic environment fluid inclusions physico-chemical parameter |
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