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Data Summary for dc2a
E= 46.38 ± 1.18(kcal/mol) log(Do/ro^2)= 6.22 ± 0.33(1/sec) J= .005192

Temp. time % 40Ar* 39Ar % 39Ar* age ± 1sd log(D/r^2) ± 1sd log(r/ro)
(C) (min) -- (E-14 mol) released (Ma) (1/sec) --
400 21 4.549 0.25 0.19 42.1 ± 9.44 -8.66 ± 4.08 -.09
450 24 1.020 0.39 0.47 3.6 ± 2.75 -7.98 ± 3.43 0.09
500 26 7.591 1.24 1.39 7.3 ± 0.47 -7.07 ± 3.24 0.09
550 27 35.497 3.85 4.22 4.1 ± 0.10 -6.11 ± 3.14 0.01
500 17 12.530 0.25 4.41 3.8 ± 0.26 -6.91 ± 4.18 0.00
600 15 51.845 5.60 8.54 4.0 ± 0.02 -5.33 ± 4.69 -.03
500 40 14.765 0.37 8.81 4.7 ± 0.34 -6.81 ± 2.25 -.05
650 15 63.166 10.27 16.37 4.2 ± 0.02 -4.78 ± 4.63 0.01
500 40 7.657 0.16 16.49 5.5 ± 0.40 -6.89 ± 2.19 0.00
450 132 3.088 0.08 16.55 4.2 ± 1.15 -7.72 ± 1.55 -.04
400 945 1.864 0.08 16.61 5.8 ± 0.07 -8.57 ± 1.47 -.14
650 16 68.145 4.02 19.57 4.9 ± 0.03 -5.06 ± 4.33 0.15
700 15 79.386 8.20 25.61 4.5 ± 0.02 -4.62 ± 4.57 0.21
750 15 77.299 7.90 31.43 4.4 ± 0.02 -4.54 ± 4.55 0.42
800 15 77.115 5.11 35.20 4.6 ± 0.03 -4.66 ± 4.55 0.71
850 13 73.946 3.91 38.09 5.0 ± 0.03 -4.67 ± 5.19 0.93
880 15 73.423 3.78 40.87 5.3 ± 0.04 -4.72 ± 4.54 1.07
910 15 75.233 3.70 43.59 5.6 ± 0.03 -4.70 ± 4.54 1.17
940 15 77.225 4.08 46.60 6.1 ± 0.01 -4.63 ± 4.54 1.24
970 15 76.282 4.36 49.81 6.5 ± 0.02 -4.57 ± 4.53 1.32
1000 18 78.164 5.46 53.83 7.3 ± 0.03 -4.51 ± 3.84 1.38
1000 30 77.217 5.04 57.54 7.9 ± 0.03 -4.72 ± 2.53 1.49
1000 63 74.034 5.96 61.93 8.5 ± 0.03 -4.93 ± 1.65 1.59
900 90 41.448 0.72 62.46 8.3 ± 0.10 -5.98 ± 1.53 1.78
800 995 11.798 0.63 62.93 7.8 ± 0.32 -7.07 ± 1.35 1.92
900 95 39.574 0.58 63.35 8.6 ± 0.11 -6.09 ± 1.51 1.83
1000 50 68.495 2.43 65.14 9.2 ± 0.09 -5.17 ± 1.86 1.71
1050 22 71.310 2.56 67.03 10.0 ± 0.03 -4.77 ± 3.24 1.66
1075 17 ****** 2.06 68.54 0.0 ± 0.00 -4.73 ± 4.06 1.71
1075 19 54.285 2.23 70.19 10.3 ± 0.18 -4.72 ± 3.68 1.71
1100 10 72.422 1.69 71.43 10.3 ± 0.11 -4.54 ± 6.65 1.69
1100 20 73.515 2.77 73.47 10.5 ± 0.04 -4.60 ± 3.52 1.72
1100 40 70.825 4.19 76.56 10.4 ± 0.03 -4.68 ± 2.09 1.76
1100 60 72.686 4.31 79.73 10.4 ± 0.07 -4.79 ± 1.70 1.81
1100 131 58.464 7.33 85.13 11.0 ± 0.10 -4.80 ± 1.31 1.82
1000 155 44.583 0.77 85.70 9.9 ± 0.03 -5.77 ± 1.45 2.01
900 745 11.059 0.36 85.96 10.2 ± 0.42 -6.78 ± 1.41 2.18
1100 120 47.030 3.35 88.43 10.4 ± 0.05 -4.96 ± 1.42 1.90
1100 181 47.275 3.71 91.16 10.3 ± 0.06 -5.00 ± 1.34 1.92
1100 318 34.949 3.98 94.10 10.3 ± 0.08 -5.07 ± 1.26 1.95
1100 765 13.641 4.14 97.14 10.5 ± 0.30 -5.19 ± 1.04 2.01
1125 20 35.536 0.16 97.26 10.9 ± 0.13 -4.84 ± 3.56 1.90
1150 41 21.863 0.71 97.79 13.0 ± 0.48 -4.45 ± 2.09 1.77
1175 46 25.589 1.12 98.62 10.6 ± 0.15 -4.16 ± 1.89 1.69
1200 31 12.799 0.84 99.23 11.6 ± 0.27 -3.89 ± 2.47 1.61
1250 62 12.799 0.84 99.85 11.6 ± 0.32 -3.74 ± 1.27 1.65
1300 20 2.839 0.06 99.90 29.0 ± 7.09 -3.91 ± 3.48 1.84
1350 23 2.972 0.05 99.99 35.1 ± 8.37 -3.17 ± 2.00 1.57