山东南部石臼湾及其附近沿岸地带,北起白马吉利——两城河口,南至绣针河口,全长近80公里,是一段较典型的基岩砂砾质海岸(图1)。它的北部为鲁东南基岩港湾式海岸,绣针河口区以南则为苏北粉砂淤泥质平原海岸。 这段海岸与其以南以北的海岸类型比较,在海岸发育、海岸地貌类型以及海岸冲积 Shijiu Bay in southern Shandong and the coastal areas along the north from the White Horse Gee - two city estuary, south to Xiuzhenhe, a total length of nearly 80 km, is a more typical bedrock gravel coast (Figure 1). Its northern part is the Ludong southeast coast of the bedrock, and the south of the Xipentou estuarine region is the silty plains coast of northern Jiangsu. This section of the coast, compared with the type of coast north of it, is characterized by the development of the coast, the type of coastline and the alluvial