九龙江河口表层沉积物元素特征及地球化学意义  

Elemental Characteristics and Geochemical Significance of Surface Sediment in Jiulong River Estuary

作　　者：林炳煌[1] 雷怀彦[1,2] 官宝聪[1] 王蒙光[1] 柳浩然[1] 

机构地区：[1]近海海洋环境科学国家重点实验室(厦门大学),福建厦门361005 [2]中国科学院地质与地球物理研究所兰州油气资源研究中心,甘肃兰州730000

出　　处：《厦门大学学报（自然科学版）》2009年第3期450-455,共6页Journal of Xiamen University：Natural Science

基　　金：福建省自然科学基金(D041009);福建沿海九龙江晋江输沙泥量对金门海岸影响评估(台海横向)项目资助

摘　　要：通过对九龙江口表层沉积物进行元素分析,研究了其主元素的组合特征,同时运用元素的相关分析和因子分析,探讨了其地球化学意义.元素相关分析表明,九龙江口表层沉积物常、微量元素相关性明显,表层沉积物成分以SiO2和Al2O3为主,最高值分别可达75.36%和24.27%;其中SiO2与大部分的常、微量元素呈负相关,而Fe2O3、MgO、K2O、MnO、Cu、Co、Ni与Al2O3之间呈强正相关.因子分析表明,研究区内的表层沉积物物质来源主要有陆源和生物源,但以陆源物质为主.By analysis of the elements of surface sediment from Jiulong River Estuary,the main elements combination characteristics were studied. And the significance of geochemistry was discussed by using the correlation analysis and factor analysis of elements. The result showed that the surface sediments from Jiulong River Estuary had obvious correlation between main element and trace element,and the SiO2 and Al2O3 were the most dominating components in the surface sediments of which maximum value reached 75.36 % and 24.27 %, respectively. SiO2 showed a negative correlation between most main element and trace element, while Fe203 ,MgO,K2 O,MnO,Cu,Co,Ni showed strong positive correlation with Al2O3. Factor analysis showed that surface sediment in this research area came mostly from continental source and biological source, but the main origin was continental source.

关 键 词：九龙江口 表层沉积物 元素特征 地球化学 

分 类 号：P736.1[天文地球—海洋地质]