Table T2. 40Ar-39Ar data on milligram-sized fractions.
Laser power (W)
|
36Ar(atm)
|
37Ar(Ca)
|
38Ar(Cl)
|
39Ar(K)
|
40Ar(Total)
|
Age
(Ma) |
±2
![]() |
40Ar*%
|
39Ar(K)%
|
Ca/K
|
Cl/K
|
---|---|---|---|---|---|---|---|---|---|---|---|
178-1097A-27R-1, 35-58 cm, (6.8 mg) J = 0.0006101 | |||||||||||
0.08 | 0.5065 | 0.07628 | 0.00022 | 0.5295 | 203.02 | 107.6 | 7.1 | 26.3 | 4.8 | 0.272 | 0.00029 |
0.13 | 0.6018 | 0.1418 | — | 0.6239 | 287.90 | 184.4 | 4.3 | 38.2 | 5.6 | 0.429 | — |
0.15 | 0.2365 | 0.1259 | 0.00754 | 0.5314 | 171.28 | 198.7 | 6.9 | 59.2 | 4.8 | 0.447 | 0.00972 |
0.20 | 0.1187 | 0.1715 | 0.00149 | 0.6055 | 129.58 | 164.1 | 4.7 | 72.9 | 5.4 | 0.534 | 0.00169 |
0.25 | 0.09528 | 0.2114 | — | 0.6324 | 107.03 | 132.3 | 1.6 | 73.7 | 5.7 | 0.631 | — |
0.30 | 0.08558 | 0.2501 | 0.00117 | 0.6553 | 102.31 | 124.9 | 1.4 | 75.3 | 5.9 | 0.720 | 0.00123 |
0.35 | 0.06339 | 0.2577 | 0.00041 | 0.5202 | 76.382 | 118.0 | 1.0 | 75.5 | 4.7 | 0.935 | 0.00054 |
0.45 | 0.06109 | 0.3246 | 0.00058 | 0.4733 | 69.118 | 115.00 | 0.83 | 73.9 | 4.3 | 1.29 | 0.00084 |
0.60 | 0.06048 | 0.4942 | 0.00131 | 0.5502 | 75.897 | 112.47 | 0.78 | 76.4 | 4.9 | 1.69 | 0.00163 |
0.75 | 0.02948 | 0.5939 | 0.00148 | 0.5500 | 67.078 | 113.17 | 0.67 | 87.0 | 4.9 | 2.04 | 0.00184 |
0.90 | 0.01465 | 0.4952 | 0.00187 | 0.4605 | 53.084 | 112.9 | 1.0 | 91.8 | 4.1 | 2.03 | 0.00278 |
1.10 | 0.01006 | 0.4256 | 0.00157 | 0.3930 | 44.343 | 112.3 | 1.1 | 93.3 | 3.5 | 2.04 | 0.00273 |
1.40 | 0.01494 | 0.6543 | 0.00375 | 0.6838 | 71.918 | 105.49 | 0.72 | 93.9 | 6.1 | 1.81 | 0.00376 |
1.70 | 0.00994 | 0.4497 | 0.00217 | 0.4855 | 48.773 | 101.02 | 0.85 | 94.0 | 4.4 | 1.75 | 0.00307 |
2.60 | 0.00815 | 0.5518 | 0.00367 | 0.5497 | 53.683 | 99.85 | 0.88 | 95.5 | 4.9 | 1.89 | 0.00458 |
3.60 | 0.01705 | 1.0199 | 0.00540 | 0.9635 | 96.192 | 101.22 | 0.62 | 94.8 | 8.7 | 2.00 | 0.00384 |
5.50 | 0.01836 | 1.3583 | 0.00537 | 0.9619 | 95.001 | 99.67 | 0.53 | 94.3 | 8.6 | 2.66 | 0.00382 |
Fuse | 0.04297 | 3.7023 | 0.01073 | 0.9528 | 111.74 | 110.9 | 3.4 | 88.6 | 8.6 | 7.33 | 0.00772 |
Total fusion | 121.92 | 0.95 | 1.92 | 0.00300 | |||||||
178-1103A-36R-3, 4-8 cm (10.7 mg) J = 0.0006055 | |||||||||||
0.08 | 0.7636 | 0.3982 | 0.07294 | 0.5833 | 261.36 | 65.7 | 6.2 | 13.7 | 2.5 | 1.29 | 0.0856 |
0.13 | 0.1923 | 0.3108 | 0.04580 | 0.4830 | 63.961 | 16.0 | 1.4 | 11.1 | 2.1 | 1.21 | 0.0650 |
0.18 | 0.2051 | 0.6588 | 0.07713 | 0.9566 | 74.588 | 15.89 | 0.34 | 18.7 | 4.1 | 1.30 | 0.0552 |
0.22 | 0.07506 | 0.4938 | 0.05619 | 0.7571 | 35.201 | 18.69 | 0.43 | 37.0 | 3.2 | 1.23 | 0.0508 |
0.30 | 0.1462 | 1.0358 | 0.09445 | 1.3786 | 67.210 | 18.92 | 0.33 | 35.7 | 5.9 | 1.42 | 0.0469 |
0.35 | 0.06298 | 0.9182 | 0.07011 | 1.0602 | 38.180 | 20.05 | 0.52 | 51.2 | 4.5 | 1.63 | 0.0453 |
0.45 | 0.06697 | 1.2394 | 0.09074 | 1.2766 | 43.523 | 20.20 | 0.46 | 54.5 | 5.4 | 1.83 | 0.0487 |
0.55 | 0.06117 | 1.2327 | 0.07837 | 1.1887 | 39.649 | 19.72 | 0.50 | 54.4 | 5.1 | 1.96 | 0.0452 |
0.70 | 0.05123 | 1.3936 | 0.07764 | 1.1721 | 35.807 | 19.16 | 0.42 | 57.7 | 5.0 | 2.24 | 0.0454 |
0.90 | 0.07611 | 2.3047 | 0.1084 | 1.7368 | 54.257 | 19.87 | 0.27 | 58.5 | 7.4 | 2.50 | 0.0428 |
1.10 | 0.03768 | 1.4264 | 0.06051 | 0.9939 | 28.573 | 19.06 | 0.50 | 61.0 | 4.2 | 2.71 | 0.0417 |
1.60 | 0.1014 | 3.3451 | 0.1128 | 1.9914 | 70.534 | 22.12 | 0.30 | 57.5 | 8.5 | 3.17 | 0.0388 |
1.90 | 0.02449 | 0.8622 | 0.03147 | 0.5473 | 17.954 | 21.3 | 1.5 | 59.7 | 2.3 | 2.97 | 0.0394 |
2.60 | 0.02572 | 0.7042 | 0.02622 | 0.4567 | 16.310 | 20.7 | 1.7 | 53.4 | 1.9 | 2.91 | 0.0393 |
3.20 | 0.1533 | 3.1166 | 0.09724 | 1.5713 | 73.572 | 19.54 | 0.54 | 38.4 | 6.7 | 3.74 | 0.0424 |
3.70 | 0.08756 | 1.9973 | 0.05948 | 0.9816 | 43.246 | 19.23 | 0.86 | 40.2 | 4.2 | 3.84 | 0.0415 |
4.20 | 0.04822 | 1.2277 | 0.03612 | 0.5909 | 25.074 | 19.90 | 0.70 | 43.2 | 2.5 | 3.92 | 0.0419 |
6.50 | 0.1762 | 5.8179 | 0.1266 | 1.9562 | 88.240 | 20.09 | 0.34 | 41.0 | 8.3 | 5.61 | 0.0443 |
Fuse | 0.3797 | 12.044 | 0.1998 | 3.7537 | 203.49 | 26.37 | 0.47 | 44.9 | 16.0 | 6.05 | 0.0365 |
Total fusion | 21.89 | 0.24 | 3.26 | 0.0445 |
Notes: Argon data x 10 -15 moles. — = undetectable.