| Carbonaceous shale, including oil shale, occurs in beds of clayey to silty mudrock from 0.3 to 3 m thick. |
| This distribution defines an antithetic relationship between breccia facies in the red mudrock sequences and stratiform mineralization. |
| The TGRA has an unsteady tectonic structure, where geological hazards such as earthquakes, landslides, and mudrock flows frequently occur. |
| Overlying grey-green, locally manganiferous mudrock is assigned to the Beaverbank Formation. |
| In response to burial in sedimentary basins, clay minerals in mudrock lithologies, including mudstone, shale and slate, undergo diagenetic and low-grade metamorphic reactions. |
| As far as the local officials are concerned, we all know that their responsibility will differ depending on whether it was mountain torrent, mudrock slide or river overflow. |
