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采用仪器中子活化分析（INAA）测试了微山湖地区石炭－二叠纪不同沉积环境形成煤样的稀土元素含量，并分析了煤的稀土元素地球化学特征。研究结果表明，煤的稀土元素含量及其配分模式与成煤环境密切相关．具有良好的指相意义。
The instrumental neutron activation analysis (INAA) was used to test the REE content of coal samples formed in different depositional environments in the Weishanhu area, and to analyze the REE geochemical characteristics of the coal. The results show that the REE content of coal and its distribution pattern are closely related to the coal-forming environment. Have a good sense of meaning.