云、贵、川地区不同变质程度煤中稀土元素含量研究

Geochemistry of REE in Different Ranks of Yunnan,Guizhou and Chongqing Coal

以我国云、贵、川地区煤为研究对象,采用HR-ICP-MS法测试了三种不同变质程度煤中稀土元素含量,得知褐煤中稀土元素含量偏低,肥煤、无烟煤中稀土元素含量在正常水平。三种煤稀土元素的分布模式与华南煤、中国煤一致,稀土元素来源主要是陆源,与变质程度关系不大。

In this paper, the coal inYunnan, Guizhou and Chongqing are taken as study object, and the Content of rare earth elements in the coal is tested by HR-ICP-MS method; and geochemical feature of REE are analyzed. The results show that different coals have different contents of REE, The similarity of REE contents in bituminous coals and anthracite confirm that the metamorphism slightly influences the REE content in coal.