The flat areas are separated by short, steep slopes 1 to 2 m high. These flat areas of different elevations are terraces and represent a rapid uplift of the land or a drop in sea level. We know it is an uplift of land because of two main points. Secondly, at the close of glaciation, all glacial ice in the world is melting and sea level is rising. Terraces in the Parrsboro area demonstrate that the base level for the river changed rapidly by land uplift.
Many terraces are visible.
Each represents a change in base level. And most have a soil profile developed on them. This indicates that the terraces existed long enough for a soil to develop before the next change of base level. Interpretation Uplift and terrace development began as soon as glaciers started to melt. Terraces have been found in a kettle and thus indicated that remnant blocks of ice still existed as base level abruptly changed.