BEDFORMS AND BEDDING STRUCTURES OF THE SEDIMENTS IN THE BAISHAKOU COASTAL ZONE

Situated on the southern coast of Shangdoug Peninsula, Baishakou belongs to barrier lagoon coast. The bedforms and bedding structures of sediments in this region were investigated in 1981. The investigation shows that geomorpho-logical units, such as longshore barriers, lagoon, tidal delta, tidal channel and beach, have been developing there. In the coastal zone, there are asymmetric ripples, symmetric plane top ripples, interference ripples, backwash marks, permeate current borne rill marks, plane bed surface, surviving wave ripples, ＇D＇ erosional holes, wind-borne ripples and so on. They have formed into a special distributional series of the sediment bedforms on the barrier lagoon coast.