Type | Experiments | Present Results | |||||||
Locations | Samples | 206Pb/238U | 1σ | 207Pb/235U | 1σ | Item | Value | 1σ | |
Concordia | 07QH-1 | 1 | 0.0250 | 0.0003 | 0.171 | 0.003 | k | 0.13792 | 0.00025 |
2 | 0.0253 | 0.0003 | 0.172 | 0.002 | tslope | 160 | 2 Ma | ||
3 | 0.0252 | 0.0003 | 0.172 | 0.003 | |||||
4 | 0.0250 | 0.0003 | 0.170 | 0.003 | |||||
5 | 0.0252 | 0.0003 | 0.172 | 0.002 | |||||
6 | 0.0249 | 0.0003 | 0.171 | 0.003 | |||||
7 | 0.0251 | 0.0003 | 0.173 | 0.002 | |||||
8 | 0.0251 | 0.0003 | 0.168 | 0.003 | |||||
9 | 0.0251 | 0.0003 | 0.176 | 0.003 | |||||
10 | 0.0251 | 0.0003 | 0.170 | 0.003 | |||||
11 | 0.0251 | 0.0003 | 0.172 | 0.002 | |||||
12 | 0.0248 | 0.0003 | 0.169 | 0.003 | |||||
13 | 0.0251 | 0.0003 | 0.172 | 0.003 | |||||
14 | 0.0250 | 0.0003 | 0.170 | 0.002 | |||||
15 | 0.0250 | 0.0003 | 0.169 | 0.002 | |||||
16 | 0.0249 | 0.0003 | 0.166 | 0.002 | |||||
17 | 0.0250 | 0.0003 | 0.171 | 0.002 | |||||
18 | 0.0249 | 0.0003 | 0.170 | 0.002 | |||||
19 | 0.0249 | 0.0003 | 0.168 | 0.002 | |||||
20 | 0.0252 | 0.0003 | 0.174 | 0.002 | |||||
Mean | 0.0250 | 0.0003 | 0.171 | 0.0025 | |||||
Discordia | Zimbabwe | Monazite(Manitoba) | 0.634 | 0.000 | 14.75 | 0.00 | k | 0.03950 | 0.00178 |
Monazite(Ebonite) | 0.507 | 0.000 | 12.45 | 0.00 | tslope | 1667 | 55 Ma | ||
Monazite(Jack Tin) | 0.420 | 0.000 | 10.10 | 0.00 | |||||
Monazite(Irumi) | 0.383 | 0.000 | 9.02 | 0.00 | |||||
Uraainite(Manitoba) | 0.270 | 0.000 | 5.85 | 0.00 | |||||
Monazite(Antsirabe) | 0.241 | 0.000 | 5.16 | 0.00 | |||||
Discordia | YX1 | 1 | 0.33464 | 0.00363 | 5.22129 | 0.06472 | k | 0.06779 | 0.00564 |
2 | 0.34491 | 0.00368 | 5.52554 | 0.06520 | tslope | 1016 | 100 Ma | ||
3 | 0.33249 | 0.00385 | 5.12718 | 0.07519 | |||||
4 | 0.33347 | 0.00352 | 5.19461 | 0.05960 | |||||
5 | 0.21231 | 0.00226 | 3.66393 | 0.04298 | |||||
6 | 0.33912 | 0.00358 | 5.34786 | 0.06130 |