厦门海域现代沉积环境与重金属环境地球化学特征  

Environmental Geochemistry Characteristics of Heavy Metals and Depositional Environment in Xiamen Seas

作　　者：李桂海[1] 曹志敏[1] 蓝东兆[1] 许江[2] 王珊珊[1] 

机构地区：[1]中国海洋大学地球科学学院,山东青岛266100 [2]国家海洋局第三海洋研究所,福建厦门361005

出　　处：《沉积学报》2006年第6期870-876,共7页Acta Sedimentologica Sinica

基　　金：中欧合作项目(INCO-CT-2004-510706);厦门港航道扩建工程倾倒区选划项目联合资助

摘　　要：通过厦门海域表层沉积物重金属含量分析、粒度分析及对测试结果进行的聚类分析,我们对厦门海域现代沉积环境和重金属环境地球化学特征进行了探讨。结果表明,研究海域各海区间,同一海区不同站位间沉积环境存在较大差异。重金属在各站位含量主要取决于其相应的富集组分多少,仅在个别站位受具体元素的物源影响较大。研究发现,Zn、Cu、Pb、As、Cr在细砾和粗砂中的含量可以反映其在该地区的环境背景值大小。Environmental geochemistry characteristics of heavy metals and depositional environment of Xiamen seas were investigated by means of content of heavy metals analysis, size analysis of surface sediments and by means of cluster analysis to the testing results. The results show that the big difference of depositional environment exists among the sea areas, different site of the same sea area. Content of heavy metals depends on the key enrichment components in each site, there were a rather large influence by provenance of separate element on separate site. It was found that the content of Zn, Cu, Pb, As, Cr in fine gravel and coarse sand may indicate their original value in the territory.

关 键 词：沉积环境 重金属 环境地球化学 粒度分析聚类分析 

分 类 号：P512[天文地球—地质学] X55[环境科学与工程—环境工程]