伴随深部地质过程的地幔流体作用是引发地壳中成矿作用的重要物质源和动力源。由于地幔流体的超深源性及由此决定其性质和演化的复杂性,使人们很难具体捕捉其实际存在,或者多数情况下很难准确界定。通过岩相学、岩石化学、电子探针和扫描电镜及能谱分析的综合研究发现,地幔流体活动的现实微观踪迹和存在方式可以表现为富铁熔浆包体和富铁微晶玻璃,二者在透射偏光显微镜下无光性,呈黑色不透明状;反射偏光显微镜下不反光,但在电子显微镜下呈显微晶质结构,显示微晶金属和非金属矿物之间呈熔离交生,超微晶矿物组成以硅酸盐和石英为主,尤其是经过成分配比换算,得到碳硅石,含铬自然铁、钛铁矿、磷灰石和含钛镜铁矿等地幔标型矿物,反映了地幔流体的熔浆性质。捕捉和揭示深部地质过程中地幔流体作用的现实微观踪迹,对于深入分析和认识地壳地质作用的机制和成矿效应具有重要理论和现实意义。 Mantle fluid interaction with deep geological processes is an important material source and power source for the metallogenesis in the crust. Due to the ultra-deep nature of mantle fluids and the consequent complexity and complexity of their nature and evolution, it is difficult to capture their actual existence in particular or, in most cases, to accurately define them. Through the comprehensive study of petrography, petrochemistry, electron probe, scanning electron microscopy and energy spectrum analysis, it is found that the realistic microscopic trace and existence of fluid activity in the mantle can be expressed as iron-rich molten inclusions and iron-rich glass ceramics, Under the transmission polarization microscope, there was no opacity and black opacity. The reflection polarization microscope did not reflect light, but showed a microcrystalline structure under the electron microscope, showing that the microcrystalline metal and the nonmetallic mineral were separated from each other, The composition of the ultrafine crystalline minerals is mainly silicate and quartz, and especially the mantle-derived minerals such as carbon-silica, chromium-containing natural iron, ilmenite, apatite, and titaniferous mirror- Reflecting the fluid properties of the mantle fluid. It is of great theoretical and practical significance to capture and reveal the real micro-trace of the mantle fluid in deep geological processes for further analysis and understanding of the mechanism and mineralization effect of the crustal geology.