本文用电子探针、X光衍射和激光拉曼探针等方法发现了铁质宇宙尘腔体中的Si-O玻璃物质;对腔体和外壳基质中的两种不同玻璃物质做了进一步的研究。并据此探讨了本区宇宙尘的演化史,推论在地球形成早期的壳幔演化过程中,于高温条件下,曾发生过一定规模的不混溶作用,各种不混溶相物质冷凝后可形成初始地壳及一定的矿产。 In this paper, the electron probe, X-ray diffraction and laser Raman probe method found in the iron cosmic dust chamber Si-O glass material; the cavity and the shell of two different glass substrates made a further the study. Based on this, the evolutionary history of cosmic dust in this area is discussed. It is concluded that during the early crust-mantle evolution of Earth, there was a certain amount of immiscibility at high temperature. After the immiscible materials condensed Can form the initial crust and a certain mineral.