使用X射线和ICP-MS方法对海州湾潮滩HZ02岩芯沉积物的常量与微量元素进行分析,探讨沉积物元素含量和地球化学特征,揭示沉积物来源.结果表明:常量元素平均含量大小为Al＞Fe＞Ca＞K＞Na＞Mg＞Ti,从底层到表层元素含量变化相似;微量元素从底层到表层的含量变化亦比较相似,且以1958年为时间节点,之前元素含量变化大,之后元素含量稳定.HZ02岩芯沉积物元素的多变量分析表明海州湾潮滩沉积环境变化主要受陆源影响.海州湾沉积物主要来源为从临洪河输入、其次为废黄河和黄海输入.1958年以前,主要从临洪河输入,其次为废黄河物质,之后主要从临洪河输入,其次为黄海沉积物.50年代的导沭工程和1958年的石梁河水库建设,临洪河沉积物物质输入明显减少,特别是粗颗粒物质输入减少.HZ02岩芯沉积物的化学元素含量及其变化特征清楚地揭示了海州湾潮滩沉积环境及其对人类活动的响应.%The major elements and trace elements of HZ02 core sediments in the Haizhou Bay were analyzed by using X-ray and ICP-MS to discuss the element content and chemical characteristics of sediment origins,and to analyze the origin of the sediments.The results show that,in descending order,the relative average concentrations of the major elements are as the order of A1 ＞ Fe ＞ Ca ＞ K ＞ Na ＞ Mg ＞ Ti,and the change of the major elements has a similar regularity from the bottom to the top;the trace element concentrations also have the similar trend,which varies greatly before 1958,after that it tends to be stable.The study also shows that most elements of the sediments are associated with the sedimentary environment change and the effect of the terrestrial sources through the multivariable analyses.The sediments,inputting into the Haizhou Bay,are derived mainly from the Linhong River,as well as the abandoned Yellow River and Yellow Sea.Due to the Guide Shuhe project in the 1950"s and the construction of Shilianghe reservoir in 1958,the sediment inputs,especially coarse sediment inputs become less.In conclusion,the components and variations of chemical elements of core HZ02 reveal the profound changes of sedimentary environment of the Haizhou Bay,and this change correlates with human activity directly.
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