Table 3.
Noble gas concentrations and the resulting model recharge temperatures and He surplus (radiogenic He) concentrationsa
| Well ID | Depth (m) | He ccSTP g−1GW | Ne ccSTP g−1GW | Ar ccSTP g−1GW | Kr ccSTP g−1GW | Xe ccSTP g−1GW | 3He/4He | Model prob. (%)b | Model T (°C) | err Model T (°C) | He surplusc ccSTP g−1GW | He surp.ccSTP g−1GW |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E5 | 36.2 | 4.00E-08 | 1.29E-07 | 2.40E-04 | 5.51E-08 | 7.73E-09 | 1.27E-06 | 0 | ||||
| A7 | 40.7 | 7.96E-08 | 2.12E-07 | 3.22E-04 | 6.92E-08 | 9.17E-09 | 9.09E-07 | 98.4 | 22.26 | 0.65 | 2.71E-08 | 1.72E-09 |
| CW27 (2010) | 45.7 | 5.46E-08 | 2.20E-07 | 3.17E-04 | 6.65E-08 | 8.29E-09 | 2.75E-06 | 54.9 | 31.95 | 3.44 | −1.55E-09 | 1.51E-09 |
| CW27 (2011, 1) | 45.7 | 5.54E-08 | 2.25E-07 | 3.20E-04 | 6.76E-08 | 8.75E-09 | 3.07E-06 | 73.4 | 24.33 | 0.68 | −9.22E-10 | 1.31E-09 |
| CW27 (2011, 2) | 45.7 | 5.46E-08 | 2.24E-07 | 3.20E-04 | 6.77E-08 | 8.73E-09 | 3.18E-06 | 59.7 | 24.40 | 0.71 | −1.47E-09 | 1.29E-09 |
| CW23 | 45.7 | 5.60E-08 | 2.33E-07 | 3.35E-04 | 7.09E-08 | 8.92E-09 | 1.54E-06 | 16.0 | 25.34 | 1.34 | −2.04E-09 | 1.28E-09 |
| G5 | 49.8 | 5.35E-08 | 1.47E-07 | 2.42E-04 | 5.41E-08 | 7.32E-09 | 1.03E-06 | 0 | ||||
| CW14 | 53.3 | 5.19E-08 | 1.74E-07 | 2.65E-04 | 5.94E-08 | 8.06E-09 | 1.25E-06 | 0 | ||||
| CW29 | 56.4 | 7.25E-08 | 1.96E-07 | 2.97E-04 | 6.40E-08 | 8.41E-09 | 9.31E-07 | 78.2 | 24.77 | 0.66 | 2.37E-08 | 1.58E-09 |
| CW31 | 57.9 | 7.40E-08 | 1.96E-07 | 3.00E-04 | 6.42E-08 | 8.49E-09 | 9.05E-07 | 70.0 | 24.65 | 0.75 | 2.51E-08 | 1.59E-09 |
| CW15 (2010) | 62.5 | 5.01E-08 | 1.03E-07 | 1.64E-04 | 3.78E-08 | 5.56E-09 | 8.15E-07 | 0 | ||||
| CW15 (2011, 1) | 62.5 | 4.71E-08 | 9.88E-08 | 1.63E-04 | 3.72E-08 | 5.48E-09 | 8.76E-07 | 0 | ||||
| CW15 (2011, 2) | 62.5 | 4.77E-08 | 9.73E-08 | 1.59E-04 | 3.73E-08 | 5.52E-09 | 8.38E-07 | 0 | ||||
| CW18 (2010) | 64.0 | 5.49E-08 | 1.72E-07 | 2.80E-04 | 6.07E-08 | 8.00E-09 | 1.07E-06 | 0.1 | ||||
| CW18 (2011) | 64.0 | 5.28E-08 | 1.82E-07 | 2.88E-04 | 6.32E-08 | 8.45E-09 | N/Ad | 82.1 | 24.15 | 0.50 | 7.98E-09 | 1.35E-09 |
| CW22 | 64.0 | 5.71E-08 | 2.22E-07 | 3.21E-04 | 6.71E-08 | 8.58E-09 | 1.69E-06 | 82.1 | 25.88 | 1.04 | 1.33E-09 | 1.30E-09 |
| CW4 | 65.2 | 4.77E-08 | 1.84E-07 | 2.93E-04 | 6.41E-08 | 8.21E-09 | 1.15E-06 | 1.7 | 25.51 | 7.87 | 1.58E-09 | 1.72E-09 |
| CW25 | 70.1 | 5.68E-08 | 2.13E-07 | 3.17E-04 | 6.78E-08 | 9.15E-09 | 1.51E-06 | 36.0 | 22.03 | 0.50 | 3.48E-09 | 1.46E-09 |
| CW12 (2010) | 87.2 | 5.16E-08 | 2.09E-07 | 3.06E-04 | 6.54E-08 | 8.22E-09 | 1.09E-06 | 20.0 | 30.92 | 2.74 | −1.47E-09 | 1.38E-09 |
| CW12 (2011, 1) | 87.2 | 5.32E-08 | 2.05E-07 | 3.03E-04 | 6.53E-08 | 8.64E-09 | 1.27E-06 | 95.1 | 23.74 | 0.52 | 1.76E-09 | 1.38E-09 |
| CW12 (2011, 2) | 87.2 | 5.34E-08 | 2.09E-07 | 3.05E-04 | 6.54E-08 | 8.74E-09 | 1.42E-06 | 48.9 | 23.55 | 0.51 | 1.02E-09 | 1.42E-09 |
|
| ||||||||||||
| CW46 | 128.0 | 8.45E-08 | 2.24E-07 | 3.26E-04 | 6.94E-08 | 8.83E-09 | 8.77E-07 | 18.7 | 24.66 | 0.98 | 2.85E-08 | 1.80E-09 |
| CW42 | 128.0 | 7.40E-08 | 2.12E-07 | 3.17E-04 | 6.81E-08 | 9.39E-09 | 1.09E-06 | 3.4 | 21.22 | 0.48 | 2.17E-08 | 1.78E-09 |
| CW45 | 129.5 | 8.02E-08 | 2.26E-07 | 3.27E-04 | 6.97E-08 | 8.73E-09 | 9.42E-07 | 25.2 | 31.42 | 2.56 | 2.28E-08 | 1.87E-09 |
| CW47 | 137.2 | 7.34E-08 | 2.16E-07 | 3.23E-04 | 6.87E-08 | 8.90E-09 | 1.02E-06 | 75.0 | 24.16 | 1.04 | 1.97E-08 | 1.58E-09 |
| CW36 (2010) | 149.4 | 7.84E-08 | 2.26E-07 | 3.28E-04 | 7.02E-08 | 8.71E-09 | 9.70E-07 | 8.9 | 30.83 | 2.88 | 2.12E-08 | 1.86E-09 |
| CW36 (2011) | 149.4 | 7.69E-08 | 2.27E-07 | 3.25E-04 | 6.95E-08 | 9.42E-09 | 1.04E-06 | 13.7 | 21.32 | 0.49 | 2.02E-08 | 1.86E-09 |
| CW44 | 152.4 | 8.05E-08 | 2.26E-07 | 3.21E-05 | 6.90E-08 | 8.62E-09 | 8.91E-07 | 0 | ||||
|
| ||||||||||||
| WAB24030 | 205.4 | 8.03E-08 | 2.28E-07 | 3.28E-04 | 7.02E-08 | 8.97E-09 | 9.52E-07 | 15.0 | 23.59 | 0.74 | 2.34E-08 | 1.74E-09 |
Grey shading indicates samples that were not used for plots and discussion due to: low model probability and/or model T error >1.5 °C
a
The model used is described in section 2.3.3.
b
The probability that model is consistent with the data (>1% is minimum, >5% is a strong criterion)
c
He surplus is equivalent to radiogenic He
d
3He/4He ratio measurement not available