渤海中部现代黄河沉积物影响范围的稀土元素证据

发布时间：2018-03-14 15:27

本文选题：表层沉积物　切入点：稀土元素　出处：《中国海洋大学学报(自然科学版)》2017年06期 　论文类型：期刊论文

【摘要】：黄河每年输入大量的沉积物进入渤海,入海沉积物的扩散和影响范围对该区的现代沉积作用、海洋生态环境、海洋工程环境都有着重要的影响。为此本研究使用ICP-MS分析方法对渤海中部典型断面的40个表层沉积物样品进行了稀土元素的测试,阐明渤海中部表层沉积物稀土元素发育特征,结合渤海周边主要河流的稀土元素地球化学特征,探讨了黄河现代沉积物扩散和影响范围。结果表明:渤海湾北部沿岸地区沉积物与滦河沉积物稀土元素特征相似,主要受到滦河物质输入影响;研究区南部稀土元素含量特征与黄河相近,主要接收黄河沉积物沉积;中间部分沉积物应为黄河、海河与滦河沉积物混合,使其稀土元素显示出与各河流不同的特征。现代黄河沉积物影响范围主要局限于渤海南部海域。
[Abstract]:The Yellow River enters a large number of sediments into the Bohai Sea every year. The diffusion and influence of the sediment into the Bohai Sea have a great impact on the modern sedimentation and marine ecological environment in this area. The marine engineering environment is very important. In this study, the rare earth elements (REE) in 40 surface sediment samples from typical sections of the central Bohai Sea were tested by using ICP-MS analysis method, and the characteristics of REE development in the surface sediments of the central Bohai Sea were elucidated. Combined with the geochemical characteristics of rare earth elements in the main rivers around the Bohai Sea, the diffusion and influence range of the modern sediments of the Yellow River are discussed. The results show that the REE characteristics of the sediments in the northern coastal area of Bohai Bay are similar to those in the sediments of the Luanhe River. The REE content in the southern part of the study area is similar to that of the Yellow River, and it mainly receives the sediments of the Yellow River, and the middle part of the sediment is the Yellow River, and the sediment of the Haihe River and the Luanhe River is mixed. The REE of the Yellow River is different from that of the rivers, and the influence range of the modern Yellow River sediment is mainly confined to the southern Bohai Sea.
【作者单位】：中国海洋大学海洋科学与探测技术教育部重点实验室;
【基金】：国家自然科学基金项目(41376055) 国家重点研发计划项目(2016YFA0600904)资助~~
【分类号】：P736.21

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