抄録
There are some small sand mounds on the IV marine terrace (about 30 m above sea level). The height of mound is 50cm and the diameter is 50-100cm. They are similar to “hammock”. The mounds cover the old sand dune and are covered with small bush. The sand of mounds is different from the sand of old dune (Fig.). It is not clear whether the feature is a periglacial one.
