摘要
本文在海区实地调查的基础上,通过底质样品的粒度、成分以及柱状样品^(210)Pb测年资料的分析,论述本海湾的现代沉积特征,从而为海区航道的开挖和港口码头的建设提供泥沙来源及其搬运趋势方面的依据。
Surface sediment in the Yaling Bay can be divided into six types, of which silty mud is the main one. Minerals in the sediment are basically in accordance with those of the suspension load in the Daya Bay. Within the Yaling Bay sediment is more from the sea than from the land. Main direction of sediment from the sea is from southeast to northwest. Sediment from the land mainly consists of rock fragments which are carried from mountains by streams and surface flows of the earth, producing little effect to the sea area of more than 2m in depth. The two kinds of sediment are limited in quantity and therefore depositional velocity in the bay is slow. It gives advantage to the development of ports and waterways.
出处
《热带地理》
北大核心
1992年第2期122-128,共7页
Tropical Geography
关键词
粤东哑铃湾
沉积特征
泥沙
来源
The Yaling Bay
East Guangdong
Modern sediment
Sediment sources
