Bounce Marks

Bounce marks are one of the more unusual sole marks that develop.  These form when a tool bounces across a muddy substrate and creates a small depression that is later filled with coarser sediment.  Like flute and groove casts, the event creating the erosional scour is associated with the deposition of the overlying or infilling sediment and not with the deposition of the muddy substrate.   Reineck and Singh (1980) present a more complex classification scheme for the features that have been here lumped together as bounce marks.

	Bounce marks with large flute cast.  The bounce marks are the smaller features in this image, which can be seen in closer view in the image below.
	Closer view of bounce marks.  Note the irregular shapes and orientation of these features.  There are also some small grooves and flutes scattered across the photo.