Step | T (°C) | 40/39 | 38/39 | 37/39 | 36/39 | 36/40 | 39K/38Cl | 37Ca/39K | 39 % | %40* | 40*/39K | Age (Ma) | ± |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MC301 Biotite | J: 0.003468 | ||||||||||||
1 | 400 | 6.21 | 0.01870 | – | 0.0128963 | 0.002078 | – | 2.23E−07 | 22.61 | 40.4 | 2.501 | 15.6 | 0.7 |
2 | 540 | 2.44 | 0.01730 | – | 0.0010309 | 0.000422 | – | 1.87E−07 | 49.58 | 89.3 | 2.170 | 13.5 | 0.8 |
3 | 622 | 2.39 | 0.01590 | – | 0.0011824 | 0.000494 | – | 2.68E−07 | 68.43 | 85.8 | 2.038 | 12.7 | 1.0 |
4 | 2400 | 2.33 | 0.01750 | 0.000178 | 0.0005096 | 0.000218 | – | 7.84E−04 | 100 | 93.8 | 2.175 | 13.6 | 0.7 |
 |  |  |  |  |  |  |  |  |  |  | Total age: 13.8 ± 1.9 Ma | ||
MC301 Muscovite | J: 0.003471 | ||||||||||||
1 | 421 | 1.97 | 0.01210 | – | 0.00055193 | 0.0002807 | – | 1.94E−07 | 3.54 | 91.9 | 1.789 | 11.2 | 1.1 |
2 | 470 | 1.69 | 0.01180 | – | 0.00015143 | 0.0000894 | – | 7.22E−08 | 13.15 | 97.4 | 1.627 | 10.2 | 0.2 |
3 | 512 | 1.67 | 0.01150 | – | 0.00010631 | 0.0000636 | – | 6.50E−08 | 23.83 | 98.2 | 1.619 | 10.1 | 0.1 |
4 | 578 | 1.68 | 0.01230 | – | 0.00001440 | 0.0000100 | – | 2.57E−08 | 50.86 | 99.7 | 1.660 | 10.4 | 0.1 |
5 | 605 | 1.71 | 0.01220 | 0.000391 | – | – | – | 1.53E−03 | 75.38 | 100.0 | 1.693 | 10.6 | 0.1 |
6 | 620 | 1.73 | 0.01170 | 0.000548 | 0.00023660 | 0.0001365 | – | 2.15E−03 | 86.18 | 96.1 | 1.645 | 10.3 | 0.3 |
7 | 655 | 1.76 | 0.00919 | 0.001690 | 0.00087693 | 0.0004974 | – | 6.61E−03 | 88.55 | 85.7 | 1.485 | 9.3 | 1.0 |
8 | 1555 | 1.74 | 0.01070 | 0.000086 | 0.00006350 | 0.0000364 | – | 3.36E−04 | 100 | 99.0 | 1.698 | 10.6 | 0.2 |
 |  |  |  |  |  |  |  |  |  |  | Total age: 10.4 ± 0.2 Ma |