Unit/Sample Code K2O
(wt %)
40K (ppm) 40K (mol/g) x 10-8 40Ar* (ppm) 40Ar* (mol/g) x 10-9 40Ar* (%) Total 40Ar* (ppm) Total 40Ar (mol/g) x 10-8 36Ar (ppm) x 10-5 36Ar (mol/g) x 10-13 Model Age (Ma) Uncertainty in Ma on age (one sigma)
Cardenas FBM:(Bas) 2.40 2.377 5.95 0.1507 3.77 96.6 0.1559 3.90 1.6 4.50 853 15
Cardenas MN:b-8 3.10 3.070 7.68 0.1850 4.63 98 0.1886 4.72 1.2 3.20 820 20
Cardenas MN:Tb-8 3.33 3.298 8.25 0.1930 4.83 95 0.2050 5.08 3.1 8.60 800 20
Cardenas MN:b-4 4.185 4.1447 10.37 0.2390 5.98 99 0.2414 6.04 0.73 2.04 791 20
Cardenas EM:(Pal) 2.089 2.0689 5.18 0.1291 3.23 98 0.1319 3.30 0.80 2.23 843 34
Cardenas LPM:4D 1.231 1.469 3.05 0.1077 2.70 85.2 0.1263 3.16 5.7 15.7 957 35
Cardenas LPM:4E 1.282 1.269 3.18 0.10018 2.51 94.1 0.1063 2.66 1.9 5.18 1013 37
Cardenas A:C-1 4.005 3.965 9.923 0.2822 7.06 97.4 0.2897 7.25 2.3 6.37 935 19
Cardenas A:C-2 3.97 3.934 9.845 0.2448 6.13 97.1 0.2518 6.30 2.1 5.90 841 17
Cardenas A:C-7 0.782 0.775 1.94 0.05887 1.47 82.8 0.0711 1.78 3.7 10.4 984 24
Cardenas A:C-10 2.32 2.295 5.744 0.1049 2.62 94.3 0.1111 2.78 1.9 5.25 653 15
Cardenas A:C-13 7.43 7.355 18.41 0.2907 7.27 93.4 0.3109 7.78 6.2 17.1 577 12
Cardenas A:C-14 4.17 4.129 10.33 0.2023 5.06 95.2 0.2122 5.31 3.0 8.38 962 14
Cardenas A:C-16 10.5 10.398 26.02 0.4133 10.3 98.7 0.4196 10.5 1.9 5.34 580 12
Cardenas A:C-19 6.64 6.573 16.45 0.2878 7.20 97.7 0.2945 7.37 2.0 5.69 630 13
Diabase EM:(Han) 0.303 0.300 0.751 0.207 0.519 64.4 0.0322 0.806 3.5 9.71 914 40
Diabase EM:(Tap) 1.32 1.307 3.27 0.0955 2.39 92.5 1.1031 2.58 2.4 6.56 954 30
Diabase A:DI-5 2.002 1.982 4.96 0.1171 2.93 89.35 0.1311 3.281 4.3 11.88 806 18
Diabase A:DI-7 0.754 0.747 1.87 0.03893 0.974 80.0 0.0487 1.22 3.0 8.24 728 20
Diabase A:DI-9 1.51 1.496 3.74 0.07468 1.87 89.8 0.0832 2.08 2.6 7.18 703 15
Diabase A:DI-10 8.61 8.527 21.34 0.5737 14.36 96.4 0.5951 14.89 6.5 17.94 895 20
Diabase A:DI-11 8.245 8.166 20.43 0.4206 10.52 94.3 0.4460 11.16 7.8 21.66 721 14