Stratigraphic age Q0 value lithology | Sinian Cambrian Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Tertiary | Quaternary |
sandstone | 0.00 | 0.05 - 0.15 (0.10) | 0.15 - 0.30 (0.22) | 0.30 - 0.50 (0.40) | 0.40 - 0.60 (0.50) | 0.50 - 0.70 (0.60) | 0.70 - 0.85 (0.78) | 0.85 - 0.95 (0.90) | 0.95 - 1.00 (0.98) | |
shale Marl | 0.00 | 0.10 - 0.30 (0.20) | 0.30 - 0.50 (0.40) | 0.50 - 0.70 (0.60) | 0.60 - 0.80 (0.70) | 0.70 - 0.85 (0.78) | 0.85 - 0.95 (0.90) | 0.85 - 0.95 (0.90) |
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sandy shale | 0.00 | 0.10 - 0.20 (0.15) | 0.20 - 0.40 (0.30) | 0.40 - 0.60 (0.50) | 0.50 - 0.70 (0.60) | 0.60 - 0.80 (0.70) | 0.80 - 0.90 (0.85) | 0.85 - 0.95 (0.90) |
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