【摘要】 <正> 广西钦洲湾潮滩位于钦洲湾的内湾(茅尾海)湾顶。湾内既有封闭的条件,又有河流输沙入湾的有利因素,因此潮滩发育最宽处达7—8公里。弄清它的沉积特征和沉积作用,对半封闭海湾的海岸沉积研究具有重要意义。更多还原

【Abstract】 Qinzhou Bay possess better condition of enclosure, although its material provi- ssion isn’t rich, but the source of material is near and concentrated for this semi- -enclosed bay, therefore, its tidal flat developed wide to 7. 8km. Its sedimentary distribution is controlled by tidal currents. According to analysis of grain size, minerals and organic matters, results showed that the distribution of sediment gra- in gradually changed from fine to coarse along with the high tidal zone to the low tidal zone.更多还原