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Table 6 Element-wise release rates
From: Thermally driven fracture aperture variation in naturally fractured granites
Experiment | Test conditions | Element-wise release rates | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
\({P}_{\text{co}\_\text{r}}\) (MPa) | \(T_\text{i}\) (\(^\circ\)C) | \(T_\text{f}\) (\(^\circ\)C) | \(\Delta\) t (h) | \(\frac{{\text{Si}}}{{\text{Al}}}\) | \(\frac{{\text{Si}}}{{\text{Ca}}}\) | \(\frac{{\text{Si}}}{{\text{Fe}}}\) | \(\frac{{\text{Si}}}{{\text{K}}}\) | \(\frac{{\text{Si}}}{{\text{Na}}}\) | \(\frac{{\text{Si}}}{{\text{Mg}}}\) | \(\dot{M}_{\text{Si}}\) (10\(^{-11}\) mol \(\text {s}^{-1}\)) | |
\(\#\)N14-S1 | 20 | 25 | 110 | 70 | > 100 | 5 | > 100 | 2 | 0 | 27 | 3.876 |
110 | 25 | 44 | > 100 | 5 | > 100 | –a | 5 | > 100 | 1.596 | ||
\(\#\)N14-S2 | 30 | 25 | 110 | 85 | –b | 9 | > 100 | –a | –b | –b | 0.955 |
110 | 25 | 52 | –b | 3 | –b | –a | –b | –b | 0.822 | ||
\(\#\)N14-S3 | 40 | 25 | 140 | 83 | > 100 | 72 | >100 | –a | –b | –b | 9.304 |
\(\#\)N19-C1 | 20 | 25 | 110 | 51 | > 100 | 3 | >100 | 1 | 0 | 9 | 4.305 |
110 | 25 | 41 | > 100 | 5 | 35 | 2 | 1 | 16 | 2.602 | ||
\(\#\)N19-C2 | 30 | 25 | 110 | 67 | >100 | 4 | > 100 | 2 | 1 | 15 | 1.318 |
110 | 25 | 34 | 87 | 13 | 70 | 3 | 2 | 45 | 3.959 | ||