平庄煤田煤中稀土元素地球化学特征
THE GEOCHEMISTRY OF RARE EARTH ELEMENT IN BROWN COAL OF PINGZHUANG COALFIELD, INNER MONGOLIA
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摘要: 结合煤田地质特征,对不同矿区、不同煤组的煤进行了稀土元素的含量测试,得出了煤的稀土元素含量变化规律及分布模式,讨论了稀土元素的主要赋存状态、来源、含量异常以及与成煤作用的关系。Abstract: Combining with the geological characteristics of Pingzhuang coalfield,the contents of rare earth element (REE) in coals from different mining districts and different seams are determined.The variation trends and distribution patterns of REE contents are obtained.The main occurrence forms,sources and content anomalies of REE,and their relationship with the coal-forming process are discussed.