|   样号  |       同位素比值  |       年龄(Ma)  |    ||||||||||
|   207Pb/206Pb  |       207Pb/235U  |       206Pb/238U  |       207Pb/206Pb  |       207Pb/235U  |       206Pb/238U  |    |||||||
|   比值  |       1σ  |       比值  |       1σ  |       比值  |       1σ  |       年龄  |       1σ  |       年龄  |       1σ  |       年龄  |       1σ  |    |
|   PL        |       0.04791  |       0.00537  |       0.16583  |       0.01814  |       0.02511  |       0.00073  |       95  |       236  |       156  |       16  |       160  |       5  |    
|   PL        |       0.04886  |       0.00110  |       0.17855  |       0.00406  |       0.02658  |       0.00040  |       141  |       54  |       167  |       3  |       169  |       3  |    
|   PL        |       0.04857  |       0.00244  |       0.18182  |       0.00891  |       0.02726  |       0.00050  |       127  |       114  |       170  |       8  |       173  |       3  |    
|   PL        |       0.04984  |       0.00161  |       0.17350  |       0.00552  |       0.02531  |       0.00039  |       188  |       77  |       162  |       5  |       161  |       2  |    
|   PL        |       0.04966  |       0.00147  |       0.17342  |       0.00510  |       0.02539  |       0.00038  |       179  |       71  |       162  |       4  |       162  |       2  |    
|   PL        |       0.04750  |       0.00118  |       0.16647  |       0.00415  |       0.02551  |       0.00036  |       74  |       57  |       156  |       4  |       162  |       2  |    
|   PL        |       0.04849  |       0.00108  |       0.17708  |       0.00401  |       0.02655  |       0.00036  |       123  |       54  |       166  |       3  |       169  |       2  |    
|   PL        |       0.05086  |       0.00116  |       0.17471  |       0.00405  |       0.02502  |       0.00036  |       234  |       54  |       163  |       4  |       159  |       2  |    
|   PL        |       0.04986  |       0.00328  |       0.17746  |       0.01147  |       0.02581  |       0.00047  |       188  |       150  |       166  |       10  |       164  |       3  |    
|   PL        |       0.04954  |       0.00628  |       0.17919  |       0.02187  |       0.02625  |       0.00100  |       173  |       269  |       167  |       19  |       167  |       6  |    
|   PL        |       0.04858  |       0.00287  |       0.17271  |       0.00995  |       0.02579  |       0.00049  |       128  |       134  |       162  |       9  |       164  |       3  |    
|   PL        |       0.04815  |       0.00143  |       0.17679  |       0.00527  |       0.02663  |       0.00042  |       107  |       69  |       165  |       5  |       169  |       3  |    
|   PL        |       0.05090  |       0.00158  |       0.17814  |       0.00542  |       0.02538  |       0.00037  |       236  |       73  |       166  |       5  |       162  |       2  |    
|   PL        |       0.04783  |       0.00134  |       0.17437  |       0.00480  |       0.02644  |       0.00037  |       91  |       65  |       163  |       4  |       168  |       2  |    
|   PL        |       0.05003  |       0.00074  |       0.17703  |       0.00290  |       0.02566  |       0.00035  |       196  |       35  |       166  |       3  |       163  |       2  |    
|   PL        |       0.04895  |       0.00148  |       0.18896  |       0.00573  |       0.02799  |       0.00047  |       145  |       72  |       176  |       5  |       178  |       3  |    
|   PL        |       0.04951  |       0.00119  |       0.17592  |       0.00431  |       0.02575  |       0.00042  |       172  |       57  |       165  |       4  |       164  |       3  |    
|   PL        |       0.05017  |       0.00125  |       0.17840  |       0.00446  |       0.02579  |       0.00036  |       203  |       59  |       167  |       4  |       164  |       2  |    
|   PL        |       0.04849  |       0.00102  |       0.17181  |       0.00369  |       0.02570  |       0.00035  |       123  |       51  |       161  |       3  |       164  |       2  |