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.
To find out the geochemical properties and differences of the elements of superhigh organic sulfur coal in China, a total of 13 samples from five typical areas were statistically analyzed in terms of their sulfur content, mineral combinations and element enrichment characteristics. Results show that the superhigh organic sulfur coal have abundant mineral associations and diversified occurrence modes, reflecting the complicated process of coal formation charac- terized by multi-source and multi-period. For common elements, except for Fe, Mn and P, the content of Si, Al, Mg and K as well as the Si02/A1203 ratio in superhigh organic sulfur is higher than the average of other coal in China. For trace elements, the samples are highly enriched in F, V, Cr, Mo, Cs, T1, Cd and U. Except for Be, Co, Bi, Ge and Ba, the content of most rare earth elements is slightly higher than that of other coal in China.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
2017年第4期877-887,共11页
Journal of China University of Mining & Technology
基金
国家自然科学基金项目(41672145)
关键词
超高有机硫
地球化学
矿物
元素
Superhigh organic sulfur
geochemical
mineral
element
