胶州湾位于山东半岛南部,南北长32km,东西宽28km,面积近500km~2。湾口航道最大水深64m,口宽仅3km,是我国较大的优良港湾。胶州湾海底地貌类型多样,沿岸地貌类型复杂,具有较典型的港湾海岸与淤泥质海岸的特征。近几年来,我们先后对胶州湾及其周围海岸进行了地质地貌调查和海底沉积物钻探与表 Jiaozhou Bay is located in the southern Shandong Peninsula, north and south long 32km, east-west width of 28km, an area of ​​nearly 500km ~ 2. The largest water depth of the bayou channel is 64m and its mouth width is only 3km. It is a large fine harbor in China. Jiaozhou Bay has many submarine topography types and complicated coastal landscape types, which have the characteristics of typical harbor coast and muddy coast. In recent years, we conducted a series of geological and geomorphological surveys and submarine sediment drilling and surveying on the Jiaozhou Bay and its surrounding coasts