Table 4
Best fit ton, toff and α0 values for different source regions.
|
ton [Myr] | toff [Myr] | α0 | χ2 |
|
|
||||
| Region A | ||||
|
|
||||
| 3 | 20.4 ± 0.0 | 108.4 ± 2.8 |
|
0.17 |
| 4 | – | 60.0 ± 3.5 | −1.12 ± 0.38 | 0.72 |
| 6 | 22.9 ± 6.3 | 117.4 ± 0.0 |
|
0.47 |
| 7 | – | 48.6 ± 5.0 | −1.50+ 0.47 | 0.23 |
| 8 | – | 91.3 ± 9.3 | −1.50+ 0.47 | 1.72 |
| 9 | – | 113.2 ± 3.5 |
|
0.01 |
| 10 | – | 104.7 ± 2.7 |
|
0.01 |
|
|
||||
| Bridge | ||||
|
|
||||
| 11 | – | 69.8 ± 10.9 | −1.50+ 0.43 | 2.72 |
| 12 | – | 97.2 ± 0.0 | −1.50+ 0.66 | 1.91 |
| 13 | – | 60.6 ± 13.9 | −1.50+ 0.81 | 1.25 |
|
|
||||
| Region B | ||||
|
|
||||
| 14 | – | 121.4 ± 5.9 | −0.60-0.29 | 1.49 |
| 15 | – | 131.6 ± 13.5 | −0.60-0.66 | 0.51 |
| 16 | 7.8 ± 7.0 | 132.4 ± 2.8 | −0.6 | 4.98 |
| 17 | – | 123.1 ± 7.5 | −0.6-0.14 | 2.34 |
Notes. The region age is: ts = ton + toff. For regions where ton is not listed, the ageing only (JP) model provided the best fit, in which case ts = toff. We test the acceptance of the hypothesis that the data isconsistent with the model using a significance level with a probability of 5%. The χ2 threshold for the 95% confidence interval (Bevington & Robinson 2003) for two degrees of freedom is 
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