What is drift covered sandstone?
Sandstone is just a sedimentary rock composed of cemented sand grains. It would be the bedrock at the surface in your statement. Above this sandstone is a soil (or unconsolidated and unlithified deposit of sedimentary materials), which is pretty well the sitution everywhere, of course. In your example, the sedimentary deposit on top of the bedrock is glacial drift. Drift is simply a generic term for a type of glacial deposit formed essentially from contact with ice or in the zone where the ice melts out, thus usually means till or outwash deposits without really breaking things down more specifically. The soils were formed from the deposits of a glacier, the rock underneath is a sandstone. normally should write drift-covered sandstone to be more clear.
