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前寒武纪同位素地质年代学研究是探索地球及地壳物质起源和早期演化历史的重要基础工作。它对于了解地球上生命起源及进化、全球地质年表对比及制定、重要成矿期及成矿省的划分等均具重要意义。除此之外,前寒武纪早期年代学的工作还可将作为太阳系一员的地球与陨石、月球物质进行整体的对比研究。多年来,世界各国对古老岩石年龄测定工作虽都颇为重视,但所得结果大于30—32亿年的一些地区大
Precambrian isotopic geochronology is an important basic work to explore the origin and early evolution of Earth and crustal materials. It is of great significance to understand the origin and evolution of life on Earth, the comparison and formulation of global geological chronology, the important mineralization period and the division of mineralization provinces. In addition, the work of the early Precambrian chronology can also make an overall comparative study of the earth and meteorites and lunar materials that are members of the solar system. Over the years, all countries in the world have attached great importance to the determination of the age of ancient rocks. However, the results obtained in some areas of more than 3.0 to 3.2 billion years are large