近年来,应用锆石U-Pb体系测定基性、超基性岩的年龄有所突破,这与T.克劳提出和完善低污染水平热液分解矿样法和超微量U、Pb同位素分析方法是分不开的。因为在基性、超基性岩中锆石的含量极微,不仅需要高精度、高灵敏度的测试方法,而且分析时要尽可能地防止一切污染混入。第四届国际同位素地质年代学、宇宙年代学、同位素地质学会议上这类文章数目俱增,标志 In recent years, the application of zircon U-Pb system to determine the age of basic and ultrabasic rocks has made a breakthrough. This is with T. Crowe proposed and perfected low-pollution hydrothermal mineralization method and ultra trace U, Pb isotopic analysis The method is inseparable. Because in the basic, ultrabasic rock zircon content is minimal, not only requires high-precision, high sensitivity test method, but also to analyze as much as possible to prevent all contamination mixed. The Fourth International Isotope Geochronology, Geochronology, Isotope Geology Conference on the number of such articles are increasing, marking