本文讨论长江三角洲南部的上海潮坪沉积。上海潮坪分为两个部分:东部潮坪(汇角以北的部分)和南部潮坪(汇角以西的部分)(图1)。在全面踏勘的基础上,分别在南部潮坪、东部潮坪选择了南闸、老港这两个剖面点。为了同潮坪区进行对比,又选择了离长 This article discusses the deposition of Shanghai tidal flat in the southern Yangtze River delta. The tidal flat in Shanghai is divided into two parts: the tidal flat in the east (north of Huijiao) and the tidal flat in the south (west of Huijiao) (Figure 1). On the basis of a comprehensive survey, the two sections of Nanzha and Laogang were selected respectively at the tidal level in the south and tidal level in the east. In order to be compared with the tidal flat area, they chose to leave