Research Article
Assessing Alternative Scenarios for the Cause of Underpressures in the Ordovician Sediments along the Eastern Flank of the Michigan Basin
Table 1
Summary of formation input parameters for calibration of numerical models. Adapted from Sykes et al. [
37].
| Formation | Thickness (m) | Kh (m/s) | Porosity | Tortuosity |
| Goat Island | 18.8 | 2.0 × 10−12 | 0.020 | 1.12E− 02 | Gasport | 6.8 | 2.0 × 10−12 | 0.020 | 1.12E − 02 | Lions Head | 4.5 | 5.0 × 10−12 | 0.031 | 7.23E − 03 | Fossil Hill | 2.3 | 5.0 × 10−12 | 0.031 | 7.23E − 03 | Cabot Head | 23.8 | 9.0 × 10−14 | 0.116 | 1.93E − 03 | Manitoulin | 12.6 | 9.0 × 10−14 | 0.028 | 8.00E − 03 | Queenston | 70.6 | 2.0 × 10−14 | 0.073 | 1.84E − 02 | Georgian Bay | 90.9 | 3.0 × 10−14 | 0.071 | 5.35E − 03 | Blue Mountain | 42.7 | 5.0 × 10−14 | 0.078 | 1.73E − 02 | Collingwood | 7.90 | 2.0 × 10−14 | 0.012 | 1.12E − 01 | Cobourg | 28.6 | 2.0 × 10−14 | 0.015 | 1.02E − 02 | Sherman Fall | 28.0 | 1.0 × 10−14 | 0.016 | 1.28E − 02 | Kirkfield | 45.9 | 8.0 × 10−15 | 0.021 | 5.94E − 03 | Coboconk | 23.0 | 4.0 × 10−12 | 0.009 | 1.39E − 02 | Gull River | 53.6 | 7.0 × 10−13 | 0.022 | 5.67E − 03 | Shadow Lake | 5.2 | 1.0 × 10−9 | 0.097 | 1.29E − 03 |
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