摘要
本文根据1983年9月箱式取样器采集的珠江口水下26个表层沉积样的化学成分分析数据和微量元素的分析资料,探讨了珠江口表层沉积物中主要元素氧化物和微元素含量的分布特征,影响因素,与其它地区的对比及其相互关系。主要元素氧化物Fe_2O_3、Al_2O_3、P_2O_5、MnO、TiO_2,有从河口向外海百分含量逐渐减少的趋势。CaO氧化物的百分含量则为河口区内低于开阔海域;MgO氧化物百分含量则变化不大。影响以上七种氧化物含量分布主要的因素有:物质来源、元素化学性质、生物作用、沉积物分布。珠江口表层沉积物中微量元素含量在平面上的分布也具有一定的规律性。
Based on the analytical data of the chemical compositions and minor elements, this paper describes the geochemical charateristics of surface sediment in the pearl River Estuary.
It has been found that the Fe_2O_3, Al_2O_3, P_2O_3. MnO, TiO_2 contents in the sediment tend to decrease, whereas the CaO content increases, from the estuary to the outer sea. Some minor elements correlate positively with some certain major elements oxide in contents, such as V, Ni, Ga Pb with Al_2O_3, Co, V Ni, with Fe_2O_3 and Sr with CaO.
出处
《海洋湖沼通报》
CSCD
北大核心
1989年第4期53-61,共9页
Transactions of Oceanology and Limnology
