flood bed

Flood beds on the Sanpoil arm of glacial Lake Columbia show episodic flood deposits as well as deposit grading and rhythmical repetition.

He looked down into the flooded bed of the Bubezi River, a roaring red-brown torrent in which huge trees swirled and tumbled on their way to the sea, their bared roots lifted like the crooked arthritic fingers of dying beggars.

As they went downward the air seemed to thicken, the sun's clarity was dimmed, the smooth-faced rocks became slippery with moss and the stone ground began to crumble into earth, sandy at first and cut with flood beds, and then darker and bound by vegetation.