中国典型超高有机硫煤中矿物与元素特征

发布时间：2018-04-21 23:16

本文选题：超高有机硫 + 地球化学　；参考：《中国矿业大学学报》2017年04期

【摘要】：为了查明我国超高有机硫煤的元素地球化学特征及差异性,分析了5个分布区共13组样品的含硫特征、矿物组合特征及元素特征.研究表明:超高有机硫煤中矿物种类丰富,赋存状态多样,反映了成煤过程中多物源、多期次的复杂特性.超高有机硫煤中常量元素Si,Al,Mg和K含量普遍高于中国煤中均值,SiO_2/Al_2O_3质量比普遍较高,Fe,Mn和P含量低于中国煤中均值.微量元素普遍高于中国煤中均值,其中高度富集F,V,Cr,Mo,Cs,Tl,Cd和U,大部分稀土元素含量略高于中国煤均值,Be,Co,Bi,Ge和Ba的平均含量低于中国煤均值.
[Abstract]:In order to find out the geochemical characteristics and differences of ultra-high organic sulfur coal in China, the characteristics of sulfur content, mineral assemblage and elemental characteristics of 13 groups of samples in five distribution areas were analyzed. The results show that the ultrahigh organic sulfur coal is rich in mineral species and diverse in occurrence state, which reflects the complex characteristics of multi-source and multi-period in the coal-forming process. The contents of mg and K of the constant elements SiOAlAlN and K in ultra-high organic sulfur coal are generally higher than those in the Chinese coal. The mass ratio of Sio _ 2 / Al _ 2O _ 3 is generally higher than that of the Chinese coal. The content of Fe _ (2) mn and P is lower than the average value of coal in China. The content of trace elements is generally higher than the average value of coal in China, in which the content of TlO, CD and U is highly enriched, and the content of most rare earth elements is a little higher than the average content of BiGe and Ba of the coal in China, which is lower than the average value of coal in China.
【作者单位】：西安科技大学地质与环境学院;西安科技大学材料科学与工程学院;
【基金】：国家自然科学基金项目(41672145)
【分类号】：P618.11

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