ERRATIC a.
tic fever." Harvey. Erratic blocks, gravel, etc. (Geol.), masses of stone which have been transported from their original resting places by the agency of water, ice, or other causes. -- Erratic phenomena, the phenomena which relate to transported materials on the earth's surface.
GLACIAL a.
m; as acetic or carbolic acid. -- Glacial drift (Geol.), earth and rocks which have been transported by moving ice, land ice, or icebergs; bowlder drift. -- Glacial epoch or period (Geol.), a period during which the climate of the modern temperate regions was polar, and ice covered large portions of the northern hemi…
GLACIATE v.
To produce glacial effects upon, as in the scoring of rocks, transportation of loose material, etc. Glaciated rocks, rocks whose surfaces have been smoothed, furrowed, or striated, by the action of ice.