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

Data Summary for n8ksp
E= 45.63 ± 1.03(kcal/mol) log(Do/ro^2)= 4.95 ± 0.27(1/sec) J= .005298

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 15 10.395 0.66 0.12 135.0 ± 4.83 -8.87 ± 5.09 0.01
450 23 8.726 0.40 0.20 24.3 ± 2.33 -8.85 ± 3.46 0.01
500 15 36.730 1.05 0.40 35.9 ± 0.97 -7.98 ± 4.75 0.02
500 20 42.657 0.96 0.58 17.3 ± 0.56 -7.93 ± 3.70 -.01
550 15 55.080 2.62 1.08 26.5 ± 0.24 -7.14 ± 4.71 -.01
550 21 71.057 2.34 1.52 15.6 ± 0.22 -7.15 ± 3.54 -.01
600 16 70.754 5.89 2.63 19.1 ± 0.17 -6.42 ± 4.43 -.02
600 20 84.048 4.16 3.42 16.3 ± 0.16 -6.50 ± 3.64 0.02
650 15 75.529 11.40 5.58 17.9 ± 0.06 -5.77 ± 4.66 -.04
650 24 90.151 10.10 7.49 16.8 ± 0.08 -5.87 ± 3.15 0.01
700 15 86.575 14.90 10.30 17.7 ± 0.05 -5.36 ± 4.62 0.03
700 20 93.347 11.30 12.44 17.2 ± 0.05 -5.50 ± 3.59 0.10
750 15 91.961 19.90 16.19 17.6 ± 0.04 -5.03 ± 4.59 0.12
750 22 95.122 13.90 18.82 17.8 ± 0.07 -5.26 ± 3.29 0.23
800 15 93.943 16.50 21.93 18.0 ± 0.05 -4.96 ± 4.57 0.31
825 15 94.425 15.50 24.86 18.1 ± 0.05 -4.92 ± 4.56 0.40
850 14 93.580 12.30 27.19 18.3 ± 0.07 -4.95 ± 4.85 0.51
875 15 91.437 12.00 29.47 18.3 ± 0.06 -4.95 ± 4.56 0.61
900 17 92.157 11.20 31.58 18.4 ± 0.05 -5.00 ± 4.07 0.73
925 18 90.067 10.30 33.52 18.6 ± 0.07 -5.04 ± 3.87 0.83
950 16 88.382 9.57 35.33 18.8 ± 0.08 -4.99 ± 4.29 0.90
975 26 86.740 16.50 38.45 19.0 ± 0.05 -4.94 ± 2.84 0.95
1000 21 83.171 13.40 40.99 19.3 ± 0.06 -4.90 ± 3.38 1.01
1025 21 80.989 15.80 43.97 19.7 ± 0.05 -4.80 ± 3.38 1.04
1050 24 79.294 21.00 47.94 20.1 ± 0.05 -4.70 ± 3.01 1.06
1075 17 79.069 16.90 51.13 20.4 ± 0.05 -4.62 ± 4.05 1.09
1100 15 79.227 15.10 53.99 20.6 ± 0.06 -4.57 ± 4.54 1.13
1100 31 82.467 20.80 57.92 20.8 ± 0.06 -4.71 ± 2.48 1.20
1100 45 83.323 17.70 61.26 21.1 ± 0.08 -4.91 ± 1.96 1.30
1100 73 82.669 18.50 64.75 21.4 ± 0.11 -5.06 ± 1.59 1.37
1100 107 81.492 17.50 68.06 21.8 ± 0.16 -5.21 ± 1.45 1.45
1100 162 80.592 17.80 71.42 22.3 ± 0.23 -5.33 ± 1.38 1.51
1100 762 79.361 42.90 79.53 23.2 ± 0.43 -5.53 ± 1.19 1.61
1150 38 79.455 6.75 80.80 23.8 ± 0.23 -4.94 ± 2.19 1.44
1175 26 76.988 10.90 82.86 23.3 ± 0.15 -4.53 ± 2.84 1.30
1200 34 79.173 23.60 87.32 23.3 ± 0.09 -4.22 ± 2.27 1.20
1225 24 79.075 15.60 90.26 23.3 ± 0.11 -4.13 ± 3.00 1.21
1250 15 79.004 14.80 93.06 23.2 ± 0.09 -3.82 ± 4.52 1.11
1275 16 70.313 14.40 95.77 23.1 ± 0.15 -3.68 ± 4.24 1.10
1300 15 73.052 7.33 97.16 23.7 ± 0.25 -3.75 ± 4.53 1.18
1350 16 73.002 3.48 97.81 35.4 ± 0.87 -3.95 ± 4.32 1.38
1400 16 66.038 3.10 98.40 34.0 ± 1.67 -3.88 ± 4.37 1.44
1550 16 32.428 8.19 99.94 28.6 ± 5.30 -2.85 ± 4.11 1.16
1550 15 3.818 0.29 99.99 131.0 ± 137.00 -3.11 ± 1.88 1.30