湛江湾位于粤西雷州半岛东北侧,规模巨大的溺谷型潮汐水道沿南三岛与东海岛之间的通道深入陆地50公里以上,湾内水深浪静,建港条件优越,已建成为一个重要的具有商港、军港、海洋石油勘探基地和远洋渔业基地等多功能的综合性港口。本文依据我所1961—1978年期间多次水文泥沙、地貌和第四纪地质调查资料,分析湛江湾溺谷型潮汐水道的发育问题。 Zhanjiang Bay is located on the northeast side of Leizhou Peninsula in western Guangdong. The large-scale drowned valley tidal channel stretches over 50 kilometers of land along the channel between the South Island and the East Island. The water in the bay is very calm and the harbor is in good condition and has become an important With commercial port, naval port, offshore oil exploration base and offshore fishing base and other multi-functional integrated port. This article analyzes the development of the droughty tidal channel in Zhanjiang Bay according to the hydrological, sediment, geomorphological and quaternary geological survey data from 1961 to 1978 in our country.