ABSTRACT
Valentin (1952) classified coasts into two main groups, with an intermediate stage:
advancing coasts, where marine deposition, or the uplift of the land is dominant. Typical coastal features include raised beaches, spits, bars, sand dunes and saltmarshes
retreating coastlines, where marine erosion or the submergence of the land is dominant. Typical coastal features include wave cut platforms, arches, stacks, rias and fjords
an intermediate stage, which he called “stationary,” where deposition = submergence or erosion = uplift.
