| Dams, sea walls, and levees must be founded on firm base material, preferably bedrock. |
| I don't think it's circular, really, to rely on showing rather than on ratiocination as a bedrock for philosophy. |
| Wave erosion drives the sea cliff landward creating a planar, gently seaward-dipping bedrock platform. |
| Exposed layering is steepest in the northern flanks of the dome where it parallels the outer slopes of the bedrock collar. |
| Alteration of the bedrock produces a regolith, the base of which is known as the weathering front. |
| A shallow shaft was excavated to bedrock, followed by drilling and blasting. |
