摘要
通过对南海不同海域的沉积物中稀土元素的含量与中国黄土、大洋玄武岩、地壳和地幔物质稀土元素含量的对比,分析出南海各区域的稀土元素物质来源;另外通过稀土元素的δCe、δEu异常值与大洋玄武岩和地幔地壳物质对比,分析出南海各区的稀土元素δCe、δEu异常值原因,出现δEu正异常值为火山作用,δCe异常值指示氧化还原环境;∑LREE/∑HREE比值也可以指示稀土元素物质来源。
Through comparing the content of rare earth elements in South China bea and it＇s adjacent areas sediments with Chinese loess, basalt oceanic crust and mantle, can analyse the sources of REE ;In addition, through comparing the abnormal phenomenon of 5Ce and 8Etl with Oceanic basalts and mantle, also can explain the abnormal phenomenon of 5Ce and 5Eu, the positive abnormal phenomenon of 8Eu is the result of volcano, the abnormal phenomenon of 5Ce can represent the redox environment; The value of ∑LREE/∑HREE can instruct the resources of REE.
出处
《煤炭技术》
CAS
北大核心
2012年第3期161-163,共3页
Coal Technology
