碎屑锆石U-Pb年代学数据获取、分析与比较

张凌, 王平, 陈玺赟, 殷勇

Review in Detrital Zircon U-Pb Geochronology: Data Acquisition, Analysis and Comparison

Ling Zhang, Ping Wang, Xiyun Chen, Yong Yin

图4 5 200个锆石样品的U-Pb分析获得的206Pb/238U年龄和206Pb/207Pb年龄结果 展示了不同的年龄结果与其测试误差（1σ）的对应关系，明显看出在年龄较小（如小于1 000 Ma）的情况下，206Pb/238U年龄的测试误差较小，而在年龄较大（大于1 200 Ma）的情况下，206Pb/207Pb年龄的测试误差较小(据参考文献[27]修改)

Fig.4 U-Pb analysis of 5 200 zircon samples yielded 206Pb/238U and 206Pb/207Pb ages Figure shows the corresponding relationship between the results of different ages and the test error (1σ). It is obvious that the test error of 206Pb/238U age is smaller when the age is younger (such as less than 1 000 Ma), while the test error of 206Pb/207Pb age is smaller when the age is older (more than 1 200 Ma)（modified after reference[27]）