激光拉曼光谱测定流体包裹体成分研究进展

Development of Raman Spectroscopy Study of Fluid Inclusions

成矿流体研究是矿床学研究中的前沿地带,单个流体包裹体的成分分析更是其中的热点和难点,本文对现有的各种测试技术的优缺点进行了总结,揭示了各自的局限性。通过对与流体包裹体成分分析相关的激光拉曼分析技术的探索过程进行回顾和总结,试图对低温和常温下激光拉曼对流体包裹体成分分析的研究工作的方向进行展望:低温:(1)流体包裹体中常见水盐多元复杂体系的研究工作;(2)对天然流体包裹体成分进行定性、定量尝试;(3)目前常用的显微热台测包裹体盐度将第一次熔融温度作为低共熔温度的方法存在误差,应该做进一步研究;(4)低温下氯盐水合物的结构尚无定论。常温:(1)Fe^(3+),Zn^(2+),Cu^(2+)等离子作为主要成矿金属离子在水溶液中与Cl^-和H_2O是如何结合的;(2)NaCl,CaCl_2,MgCl_2,CuCl_2,ZnCl_2,FeCl_3含量高低造成水溶液拉曼光谱O-H伸缩振动区域(2 800~3 800 cm^(-1))的谱峰偏移的原因。

In the present paper ,the exploration process of the laser Raman analysis of fluid inclusions was reviewed and summa-rized .The authors tried to outlook the future research work on laser Raman analysis of fluid inclusions at low and room tempera-ture .Research work at low temperatures ：（1）Common multiple salt systems in the fluid inclusions ;（2）Trying qualitative and quantitative analysis of ingredients in natural fluid inclusions ;（3）Microthermometry considered first melting temperature as the eutectic temperature ,and this view was suspected ,so further research is needed ;（4）chloride hydrate structure is inconclusive at low temperatures .Research work at room temperatures ：（1） how Fe3＋ ,Zn2＋ ,Cu2＋ and other ions being considered as the main metal ions of mineralization combine with Cl -and H2 O are how to combine ;（2） The reason for different concentrations of NaCl , CaCl2 ,MgCl2 ,CuCl2 ,ZnCl2 ,FeCl3 solution resulting in the shift of Raman OH stretching region （2 800~3 800 cm-1 ） .