Tourmaline Beach
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|
step
|
P (W)
|
t (min)
|
40Ar/39Ar
|
38Ar/39Ar
|
37Ar/39Ar
|
36Ar/39Ar
|
39Ar (mol)
|
%40Ar*
|
40Ar*/39ArK
|
Age (Ma)
+sAge
(an)
|
Cl/K
|
Ca/K
|
|
1
|
4
|
1
|
10.09
|
0.020
|
9.02E-03
|
8.49E-04
|
3.28E-14
|
96.9
|
9.799
|
91.2±0.2
|
1.72E-03
|
0.018
|
|
2
|
4
|
1
|
8.984
|
0.015
|
2.03E-02
|
1.82E-04
|
3.86E-14
|
98.7
|
8.895
|
83.0±0.3
|
4.49E-04
|
0.041
|
|
3
|
4
|
1
|
8.497
|
0.015
|
2.32E-03
|
3.36E-04
|
5.58E-14
|
98.1
|
8.361
|
78.1±0.1
|
4.71E-04
|
0.005
|
|
4
|
4
|
1
|
9.150
|
0.032
|
3.45E-02
|
2.58E-03
|
1.36E-14
|
90.7
|
8.353
|
78.0±0.6
|
5.05E-03
|
0.070
|
|
5
|
4
|
1
|
9.794
|
0.017
|
5.91E-03
|
1.11E-03
|
1.95E-14
|
95.9
|
9.429
|
87.8±0.3
|
9.25E-04
|
0.012
|
|
6
|
4
|
1
|
10.02
|
0.019
|
2.88E-03
|
6.94E-04
|
4.66E-14
|
97.3
|
9.779
|
91.0±0.3
|
1.67E-03
|
0.006
|
|
7
|
4
|
1
|
10.45
|
0.054
|
2.23E-02
|
5.70E-03
|
1.99E-14
|
83.2
|
8.727
|
81.4±0.4
|
1.11E-02
|
0.045
|
|
8
|
4
|
1
|
9.637
|
0.019
|
4.31E-02
|
9.03E-04
|
5.31E-14
|
96.7
|
9.337
|
87.0±0.3
|
1.62E-03
|
0.087
|
|
9
|
4
|
1
|
9.416
|
0.056
|
1.13E-03
|
2.72E-03
|
4.54E-14
|
90.8
|
8.577
|
80.1±0.4
|
1.17E-02
|
0.002
|
|
10
|
4
|
1
|
10.01
|
0.023
|
1.52E-02
|
8.14E-04
|
5.06E-14
|
97.0
|
9.738
|
90.6±0.3
|
2.65E-03
|
0.031
|
|
11
|
4
|
1
|
9.407
|
0.026
|
1.23E-01
|
2.45E-03
|
5.13E-14
|
91.8
|
8.657
|
80.8±0.2
|
3.55E-03
|
0.248
|
|
12
|
4
|
1
|
9.748
|
0.023
|
3.98E-03
|
1.68E-03
|
4.27E-14
|
94.2
|
9.214
|
85.9±0.3
|
2.55E-03
|
0.008
|
|
13
|
4
|
1
|
8.753
|
0.020
|
6.44E-03
|
1.80E-03
|
3.08E-14
|
93.3
|
8.185
|
76.5±0.3
|
1.81E-03
|
0.013
|
|
14
|
4
|
1
|
8.923
|
0.025
|
1.28E-02
|
2.18E-04
|
6.02E-14
|
98.6
|
8.822
|
82.3±0.2
|
3.13E-03
|
0.026
|
|
15
|
4
|
1
|
9.621
|
0.021
|
1.17E-02
|
1.19E-03
|
5.05E-14
|
95.7
|
9.234
|
86.0±0.2
|
2.08E-03
|
0.024
|
|
16
|
4
|
1
|
8.829
|
0.015
|
8.13E-03
|
9.26E-04
|
1.11E-14
|
95.7
|
8.519
|
79.5±0.5
|
4.83E-04
|
0.016
|
|
17
|
4
|
1
|
12.13
|
0.040
|
2.25E-02
|
4.83E-04
|
4.37E-14
|
98.3
|
11.95
|
110.6±0.3
|
7.29E-03
|
0.045
|
|
18
|
4
|
1
|
9.558
|
0.016
|
-9.08E-05
|
5.65E-04
|
3.03E-14
|
97.5
|
9.354
|
87.1±0.4
|
7.60E-04
|
0.000
|
|
19
|
4
|
1
|
8.877
|
0.014
|
-7.88E-03
|
3.37E-04
|
1.33E-14
|
97.9
|
8.739
|
81.5±0.5
|
1.05E-04
|
-0.016
|
|
20
|
4
|
1
|
8.257
|
0.013
|
2.33E-02
|
9.71E-04
|
6.68E-15
|
94.9
|
7.935
|
74.2±0.8
|
-3.48E-05
|
0.047
|
|
21
|
4
|
1
|
9.229
|
0.013
|
-3.67E-04
|
2.00E-04
|
1.73E-14
|
98.5
|
9.133
|
85.1±0.5
|
3.53E-05
|
-0.001
|
|
22
|
4
|
1
|
8.348
|
0.015
|
1.29E-02
|
5.48E-04
|
3.29E-14
|
97.4
|
8.151
|
76.2±0.2
|
4.52E-04
|
0.026
|
|
23
|
4
|
1
|
9.959
|
0.016
|
1.65E-02
|
7.67E-04
|
2.10E-14
|
97.0
|
9.697
|
90.2±0.3
|
7.07E-04
|
0.033
|
|
24
|
4
|
1
|
9.218
|
0.013
|
2.92E-02
|
1.43E-04
|
8.18E-15
|
98.3
|
9.141
|
85.2±0.7
|
6.82E-06
|
0.059
|
|
25
|
4
|
1
|
9.832
|
0.016
|
6.58E-03
|
7.53E-04
|
5.81E-15
|
96.2
|
9.573
|
89.1±1.1
|
8.38E-04
|
0.013
|
|
26
|
4
|
1
|
8.925
|
0.015
|
1.06E-02
|
-3.01E-05
|
2.66E-14
|
99.4
|
8.897
|
83.0±0.3
|
5.51E-04
|
0.022
|
|
27
|
4
|
1
|
8.429
|
0.013
|
-5.91E-03
|
2.87E-04
|
2.86E-14
|
98.3
|
8.306
|
77.6±0.3
|
4.70E-05
|
-0.012
|
|
28
|
4
|
1
|
9.601
|
0.017
|
-8.13E-03
|
7.20E-04
|
1.11E-14
|
96.9
|
9.350
|
87.1±0.8
|
1.01E-03
|
-0.016
|
|
29
|
4
|
1
|
9.888
|
0.016
|
1.04E-02
|
7.15E-04
|
1.63E-14
|
97.1
|
9.641
|
89.7±0.6
|
8.68E-04
|
0.021
|
|
30
|
4
|
1
|
9.373
|
0.015
|
1.38E-02
|
4.95E-04
|
1.47E-14
|
97.7
|
9.191
|
85.6±0.6
|
4.94E-04
|
0.028
|
|
31
|
4
|
1
|
8.894
|
0.013
|
1.23E-02
|
1.83E-03
|
7.07E-15
|
92.7
|
8.317
|
77.7±1.3
|
-1.05E-04
|
0.025
|