Dropstone Animation

This simple animation shows how glaciers, that flow into the sea,  shed off icebergs that eventually melt and drop their load of sediment to the bottom of the body of water.   In the Mineral Fork Tillite,  large "dropstones"  embedded in a fine-grained muddy matrix, probably dropped from a melting iceberg, as seen in this animation.

(Animation by A. Kekoa Stanton, BYU CID)