SEDIMENTARY CHARACTERISTICS AND TRANSPORT TREND AROUND THE MIANQIANHAI CAPE, YANGXI,CHINA

Sediment samples around the Mianqianhai Cape were analyzed. We found that the mean grain size of sediments decreases regularly from the shoreline to the offshore. The sands along the shoreline and between the shoreline and the Shuangshan Island are better sorted than those from other areas. Skewness shows similar distribution pattern as the mean grain size does. The two dimensional sediment transport trend model proposed by Gao and Collins was used to reveal the pathways of sediment transport around the Mianqianhai cape. The sediments beside the Baihuling cape show a converging trend of net transport towards the south, under the joint action of the wave-generated alongshore current at the west and the ebb current at the east of the cape. It is significantly different from the calculation of Ren et al(2001), who suggested that sediments converged around the east of the Mianqianhai Cape.