辽宁省双台子河口潮滩表层沉积物微量元素地球化学特征  

SEDIMENTS AT THE ESTUARY TIDAL FLAT OF SHUANGTAIZI RIVER,LIAONING PROVINCE

作　　者：王萍[1] 杨俊鹏[1] 胡克[1] 

机构地区：[1]中国地质大学海洋学院,北京100083

出　　处：《海洋地质前沿》2012年第8期1-6,共6页Marine Geology Frontiers

基　　金：辽宁省国土资源环境地质保护项目(3L1050714422)

摘　　要：对双台子河口潮滩上所采集沉积物样品的微量元素含量进行了测试分析,研究其空间分布特征、元素相关性以及元素组合特征,探索了微量元素在河口潮滩上的迁移富集规律及其控制因素。结果表明:潮滩沉积物中Cu、Pb、Zn元素富集,V元素流失;除Ti、Ba、Sr、Zr外,其余11种元素均表现为高潮滩比中低潮滩含量高;R型因子分析识别出3个微量元素组合,分别是Mn、Rb、Co、Cu等为代表的亲铁亲铜的元素组合,Sr、Ba等与含钾矿物有关的元素组合和Nb、Y等与细粒黏土有关的元素组合。Sediments were sampled on the muddy tidal flat at the estuary of the Shuangtaizi River, and studied were the distribution pattern of trace elements, element assemblages and correlation of indi- vidual elements in order to seek for the mechanisms of transportation and enrichment of the trace ele- ments and their dominating factors. The results show that all the factors, such as fresh water input, seawater properties and human activities are all effective on the spatial distribution of trace elements. Cu, Pb and Zn are rich in muddy deposits, but V is relatively poor. Apart from Ti, Ba, Sr, Zr, con centrations of other 11 kind of elements are higher in the high muddy tidal flat but lower in the middle and low tidal flats. Three assemblages of trace elements were identified by R-factor analysis, inclu- ding the assemblage of siderophile and chalcophile elements represented by Mn, Rb, Co, Cu, the as- semblage of potasium minerals related elements represented by Sr, Ba; and assemblage of clay related elements represented by Nb and Y.

关 键 词：双台子河口 潮滩 微量元素 空间分布 组合特征 

分 类 号：P736.41[天文地球—海洋地质]