A further consequence of continued cultivation and traffic is the development of compacted, impermeable layers or pans within the profile.

Due to the shape of the minerals, the water travels in between the compacted layer, thus "swelling" the clay-bed into mound-like features.

Snow fell, hardened like glass, and then fell again, until the compacted layers encased the land in armor.

On initial filling though, it was found that the leakage between the compacted layers within the dam body was unusually high.

Should Mrs. Spencer fill the old cesspit with compacted layers of dirt and gravel, or should she just go ahead and plant a larger tree, perhaps a fir?

Some cover crops are good at breaking up compacted layers of soil.

The cycle track was first formed with a 100mm thick compacted layer of old railway ballast, surfaced with a 25mm thick layer of fine crushed whin stone.

It has been attributed to settling of the stratified and poorly compacted layers of dirt-covered trash now filling the old quarry.

In many neurons, a myelin sheath, rich in cholesterol, since it is derived from compacted layers of Schwann cell membrane, provides insulation for more efficient conduction of impulses.

Once there were piles, but they had slipped as piles do, forming this dense compacted layer that was now turning into something like peat.