(Click here for a Complete Data Set in Excel 4.0 format)

Data Summary for 5990ksp
E= 40.04 ± 0.93(kcal/mol) log(Do/ro^2)= 3.13 ± 0.24(1/sec) J= .000450

Temp. time % 40Ar* 39Ar % 39Ar* age ± 1sd log(D/r^2) ± 1sd log(r/ro)
(C) (min) -- (E-14 mol) released (Ma) (1/sec) --
450 26 60.481 0.16 0.17 78.7 ± 0.83 -8.85 ± 3.67 -.06
450 25 11.458 0.04 0.21 14.6 ± 2.54 -9.12 ± 3.33 0.07
500 15 56.227 0.17 0.38 41.0 ± 0.50 -8.05 ± 4.79 -.07
500 21 38.904 0.12 0.50 6.3 ± 0.57 -8.17 ± 3.60 -.02
550 26 63.137 0.43 0.95 13.1 ± 0.19 -7.48 ± 3.14 -.01
550 25 52.926 0.22 1.18 2.7 ± 0.32 -7.60 ± 3.12 0.04
600 17 53.075 0.55 1.75 7.5 ± 0.14 -6.89 ± 4.22 0.00
600 18 39.823 0.34 2.10 1.7 ± 0.18 -7.01 ± 3.98 0.05
650 15 47.348 1.04 3.18 4.3 ± 0.06 -6.30 ± 4.67 -.03
650 24 58.017 0.97 4.20 1.2 ± 0.07 -6.39 ± 3.18 0.02
700 15 47.503 1.61 5.87 1.9 ± 0.04 -5.83 ± 4.65 -.02
700 20 62.082 1.23 7.15 1.0 ± 0.06 -5.96 ± 3.63 0.05
750 20 57.205 2.29 9.53 1.5 ± 0.03 -5.59 ± 3.63 0.08
750 23 74.609 1.98 11.60 1.0 ± 0.04 -5.60 ± 3.23 0.09
800 34 66.242 4.42 16.19 1.1 ± 0.02 -5.31 ± 2.47 0.14
800 29 79.119 1.54 17.79 0.9 ± 0.05 -5.61 ± 2.70 0.29
850 15 48.881 1.77 19.63 1.0 ± 0.03 -5.22 ± 4.59 0.28
850 22 78.066 1.57 21.27 1.0 ± 0.04 -5.40 ± 3.31 0.37
900 17 54.834 2.24 23.60 1.1 ± 0.03 -5.09 ± 4.10 0.38
900 21 81.170 1.47 25.13 1.0 ± 0.04 -5.33 ± 3.43 0.50
950 26 68.888 2.90 28.15 1.1 ± 0.03 -5.09 ± 2.89 0.53
975 18 75.345 1.81 30.03 1.2 ± 0.04 -5.10 ± 3.89 0.61
1000 15 70.610 1.93 32.05 1.3 ± 0.03 -4.96 ± 4.57 0.61
1025 15 72.083 2.40 34.55 1.5 ± 0.03 -4.84 ± 4.57 0.61
1050 20 80.896 3.71 38.41 1.6 ± 0.02 -4.73 ± 3.55 0.62
1075 15 82.399 3.76 42.32 1.6 ± 0.02 -4.56 ± 4.56 0.60
1100 22 84.149 6.24 48.81 1.6 ± 0.01 -4.45 ± 3.25 0.60
1100 43 84.161 5.60 54.64 1.6 ± 0.03 -4.73 ± 2.03 0.74
1100 137 80.908 6.88 61.80 1.6 ± 0.06 -5.07 ± 1.42 0.91
1100 844 84.814 13.30 75.65 1.9 ± 0.20 -5.44 ± 1.18 1.10
1200 18 91.065 7.63 83.59 2.1 ± 0.01 -3.83 ± 3.82 0.51
1225 15 92.193 7.33 91.22 2.0 ± 0.01 -3.55 ± 4.48 0.42
1250 10 91.290 2.99 94.33 2.0 ± 0.03 -3.53 ± 6.63 0.45
1275 12 87.891 2.11 96.53 2.0 ± 0.04 -3.56 ± 5.57 0.52
1300 24 60.239 0.85 97.41 2.0 ± 0.22 -4.08 ± 3.08 0.82
1400 14 12.470 0.75 98.20 2.0 ± 0.27 -3.76 ± 4.92 0.83
1550 17 1.669 1.73 99.99 1.4 ± 0.62 -2.69 ± 5.10 0.51