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本文对流体包裹体中挥发组分的各种提取和定量的分析方法进行了深入的研究,并对这些方法的进展情况做了详细的介绍.热爆法是打开包裹体较好的方法,实验表明:采用该法测定硫组分气体和水,其结果较精确.各矿床的研究表明:包裹体中存在有两种包裹体组分组合的现象屡见不鲜.一种以CO_2为主,主要见于斑岩型矿床的包裹体;一种为CO_2-N_2-C_nH_n组合,它是典型的以沉积岩为主岩和浅成低温热液矿床中包裹体的挥发组分.该组合中N_2和有机物可能来源于生物,这与成矿溶液的地壳源是一致的.大多数矿床的包裹体挥发分含有1-3mol%的气体组分.然而,对浅成低温热液矿床中以气相为主的包裹体与以液相为主的包裹体组合测定结果表明:其挥发分含量可高达5-15%.对此的解释为以气相为主包裹体富含气体组分所致.这意味着人们所说的成矿溶液的沸腾并不一定只能是水溶液的沸腾,而更可能是一种气体组分的不混合现象.流体包裹体中挥发组分的分析数据已被用于计算成矿流体的fo_2、fs_2、fco_2、和pH值.这些值与利用其它方面数据计算的结果相吻合.流体包裹体中气体的分折数据还被用于推算捕获压力和研究共生次序.
In this paper, the various extraction and quantitative analysis methods of volatile components in fluid inclusions are deeply studied, and the progress of these methods are introduced in detail.The thermal explosion method is a better method to open the inclusion, the experiment The results show that the results of this method are more accurate.The study of each deposit shows that there are two kinds of inclusions in the inclusions.It is common that CO 2 is the main component, Rock inclusions and a combination of CO_2-N_2-C_nH_n, which is a typical volatile component of inclusions mainly hosted by sedimentary rocks and epithermal deposits. The N_2 and organic matter in this assemblage may be derived from Which is consistent with the crustal origin of the ore-forming solution, and most of the ore-bearing inclusions contain 1-3 mol% of volatile components.However, for gas-based inclusions in epithermal deposits The liquid-based inclusions show that their volatile content can be as high as 5-15%, which is explained by the gas-rich inclusions, which means that what people call " The boiling of ore-forming solution does not have to be water Liquid boiling, and more likely a miscibility of gas components. Analytical data of volatile components in fluid inclusions have been used to calculate fo_2, fs_2, fco_2, and pH of the ore-forming fluids. These values are related to The results calculated using other data are in good agreement with the experimental data.The fracture data of gas inclusions in fluid inclusions are also used to calculate the trap pressure and study the symbiosis order.