| We see them light their claystone pipes, and send forth clouds of blue vapour. |
| It is also evaluating the possibility of mining other materials from the Grande-Vallée claystone deposit using its patented extraction process. |
| Why should the schist pendant of the Tappock chamber be all right, if the claystone pendant of Dunbuie be all wrong? |
| A number of brown or dark-grey mud-stone and claystone beds have also been reported in the Lang Bay area in British Columbia. |
| Sequence IV includes strata from the base of the bauxitic claystone below Seam 2 of the Heshan Formation to the top of the Dalong Formation. |
| All tyrannosaurid and hadrosaur bones lie horizontally within a 20 cm thick blocky, green claystone with occasional calcitic nodules and vertical to subvertical burrows. |
