英罗湾—安铺港沉积动力地貌特征及成因研究

Submarine Dynamic Geomorphological Characteristics and Their Formation Cause in the Yingluo Bay—Anpu Harbor Area

根据北部湾溺谷型海湾英罗湾—安铺港附近海区的水下地形及水动力情况,分析了英罗湾—安铺港及其附近海区的水下海岸动力地貌特征,并根据表层沉积物的输移趋势对水下动力地貌的形成原因进行了初步探讨。结果表明,该海域潮流动力地貌类型比较丰富,主要地貌类型包括浅滩、深槽、沙脊、拦门沙、岸坡以及海底平原等,其丰富的动力地貌主要成因是该海域较强的潮流动力。

Based on the underwater topography and hydrodynamics of the area around Yingluo Bay and Anpu Port in the drowning valley of Beibu Bay,this paper analyzes the underwater coastal dynamic geomorphology characteristics of Yingluo Wan-Anpu Port and its adjacent sea area,and makes a preliminary discussion on the formation cause of underwater dynamic geomorphology according to the transport trend of surface sediments.The results show that the sea area is rich in tidal dynamic geomorphology types,the main geomorphologic types include shoal,deep trough,sand ridge,gate barrier sand,bank slope and submarine plain,etc.,and the main cause of the rich dynamic geomorphology is the strong tidal dynamic in this area.