bedding plane irregularities  search
BTsedimentary structures
 .bedding plane irregularities
NTantidunes
 chevron marks
 current markings
 dune structures
 flute casts
 fossil ice wedges
 frost features
 groove casts
 grooves
 megaripples
 mud lumps
 mudcracks
 parting lineation
 ripple marks
 sand ridges
 sand waves
 scour casts
 scour marks
 striations
 tool marks
RTdunes
 bars
 bedding
 casts
 imbrication
 load casts
 mounds
 sand bodies
 sole marks