 It is most common in stream deposits (consisting of sand and gravel), tidal areas, and in aeolian dunes.Cross-bedded sediments are recognized in the field by the many layers of "foresets", which are the series of layers that form on the downstream or lee side of the bedform (ripple or dune).These foresets are individually differentiable because of small-scale separation between layers of material of different sizes and densities.