Fig 5. Displacement distance (cm) of the average backfilled grain of sand in relation to the depth at which it was deposited.

The host color in which the grain was deposited is shown as the color of the symbols. Displacement was calculated from the mean depth of each host layer and the depth-source of each color of backfill. Most of the backfill was displaced upward, and displacement was greater for backfill originating from deeper host layers.