中文摘要：

渤海属于中国封闭的陆架浅海,主要由辽东湾、渤海湾、莱州湾、渤中洼地以及渤海海峡组成,总称＂三湾一峡一盆地＂,通过对相关地区区域地质调查所获取资料的整理和研究,同时结合前人的工作成果,对渤海的地貌类型进行了重新的厘定和分类,将渤海分为三级地貌类型8种,四级地貌形态4种。同时根据表层沉积物的分布特征,并且结合渤海沿岸河流的输沙、沿岸流的作用及波浪对海岸带的影响,对于渤海不同地貌类型分布特征进行了圈定。

英文摘要：

The Bohai Sea is a semi-closed shallow shelf sea,consisting of three bays,one strait,and one basin.The geomorphology of it is discussed on the basis of the newly acquired data from a series of regional marine geological survey in recent years in addition to the data from previous works.A geomorphic classification system including 8categories of III-grade geomorphic types and 3kinds of IV-grade geomorphic shapes is established according to the distribution of sediment types,river transportation,and the influence of the longshore current and waves on the coastal zone.