dunes  search
NTbarchans
 coastal dunes
 continental dunes
 foredunes
 submarine dunes
UFsand dunes
RTgeomorphology
 eluvium
 antidunes
 bedding plane irregularities
 sand waves
 eolian features
 shore features
 sand ridges
 blowouts
 ergs
 sand seas
 sand sheets
 dune structures
SNAs of 1984, use dune structures for the sedimentary structure.