栖凤矿区煤中微量元素地球化学特征分析  

Analysis of geochemical characteristics of trace elements in coal in Xifeng mining area

作　　者：刘建国 刘宇轩 刘超 王永明[1] 闫俊伟 Liu Jianguo;Liu Yuxuan;Liu Chao;Wang Yongming;Yan Junwei(No.3 Bureauof China Metallurgical Geology Bureau, Taiyuan, Shanxi 030000, China;Hebei University of Engineering, Handan, Hebei 056038, China)

机构地区：[1]中国冶金地质总局三局,山西省太原市030000 [2]河北工程大学,河北省邯郸市056038

出　　处：《中国煤炭》2020年第9期75-80,共6页China Coal

基　　金：国家自然科学基金项目(11301426)。

摘　　要：运用电感耦合等离子体质谱、X射线荧光光谱和X射线衍射等技术,分别对栖凤矿区煤中微量元素、常量元素和煤灰中矿物成分及含量进行了测定分析。分析结果表明,栖凤矿区物源主要为陆源;微量元素赋存状态与Al2O3、SiO2和MgO呈显著或中度正相关,表明微量元素主要赋存在黏土矿物中,部分微量元素的赋存与黄铁矿也有关系;CaO和SO3与微量元素均呈负相关,表明元素不是以硫酸盐的形式存在。Inductively coupled plasma mass spectrometry,X-ray fluorescence spectroscopy and X-ray diffraction technologies were used to measure the trace and major elements content in coal,as well as the mineral content in coal ash of Xifeng mining area.The results showed that the sediment source of the Xifeng mining area was mainly terrigenous;the occurrence of trace elements is significantly or moderately positively correlated with the contents of Al2O3,SiO2 and MgO,indicating that trace elements were mainly present in clay minerals,and the occurrence of some trace elements were also related to pyrite;the contents of CaO and SO3 were negatively correlated with trace elements,indicating that the elements did not exist in the form of sulfate.

关 键 词：栖凤矿区 微量元素 地球化学 聚煤环境 赋存状态 

分 类 号：P59[天文地球—地球化学]