鹤壁矿区深部煤中微量元素富集特征及赋存状态研究  

Research on the Enrichment Characteristics and Occurrence Status of Trace Elements in Deep Coal of Hebi Mining Area

作　　者：张春辉 廖俊杰 刘晓攀 涂政 ZHANG Chunhui;LIAO Junjie;LIU Xiaopan;TU Zheng(Henan Academyof Geology,Institute of Nuclear Geology and Energy Minerals,Zhengzhou,Henan 450016;Mineral Resources Exploration Center of Henan Geological Bureau,Institute of Nuclear Geology and Energy Minerals,Zhengzhou,Henan 450016;Henan Xuchang Xinlong Mining Co.,Ltd.,Yuzhou,Henan 461670;Henan Pingyu Coal Power Co.,Ltd.,Yuzhou,Henan 461670)

机构地区：[1]河南省地质研究院,河南郑州450016 [2]河南省地质局矿产资源勘查中心,河南郑州450000 [3]河南省许昌新龙矿业有限责任公司,河南禹州461670 [4]河南平禹煤电股份公司,河南禹州461670

出　　处：《中国煤炭地质》2024年第10期11-21,共11页Coal Geology of China

基　　金：河南省“两权价款”地质科研类项目(豫国土资发[2016]56号-10)。

摘　　要：为探讨Cr、Cd、Se、Mn、Ge、Ga等微量元素在鹤壁矿区深部煤中的富集特征及变化规律,采取鹤壁矿区深部二叠系二_(1)煤煤样,采用原子发射光谱(AES),原子吸收光谱(AAS),电感耦合等离子体原子发射光谱(ICP-AES)和质谱(ICP-MS)等测试方法,获取上述微量元素含量,在前人现有研究成果的基础上,通过采用矿物学、岩石学、煤地质学、地球化学、地质学、统计学等学科相关知识,对研究区内二_(1)煤中14种微量元素的分布规律、富集特征进行了研究。研究结果表明:Cl、Hg、Se、Pb四种微量元素在研究区煤中明显富集,Cl元素可能是岩浆作用所带来的挥发分及被其活化的元素一起进入煤层的,研究区内Hg元素可能主要来源于热液作用和成煤植物中的裸子植物或者草本植物,Se、Pb元素也是亲硫元素,可形成广泛的类质同象关系,都主要以硫化物的形式存在,其富集可能与燕山期岩浆热液作用有关;初步认为Mn、Ga、F、P、Cd等5种元素在研究区二_(1)煤中的赋存状态主要与无机物有关;Hg、Cr、Se、Pb等4种元素在研究区二_(1)煤中的赋存状态主要与硫化物有关;As、U、Ge等3种元素在研究区二_(1)煤中的赋存状态主要与有机质有关。V元素在研究区二_(1)煤中的赋存状态主要与黏土矿物有关。本次成果可以为研究区今后相关研究提供参考,为研究区今后在生产过程中对煤炭合理清洁利用提供参考依据。To explore the enrichment characteristics and variation patterns of trace elements such as Cr,Cd,Se,Mn,Ge,and Ga in deep coal of Hebi mining area,the Permian in No.Ⅱ_(1)coal seam in Hebi mining area was taken as the research object.Chemical methods,atomic emission spectroscopy(AES),atomic absorption spectroscopy(AAS),neutron activation analysis(NAA),X-ray fluorescence spectroscopy(XRF),spark source mass spectrometry(SSMS),inductively coupled plasma atomic emission spectroscopy(ICP-AES),and mass spectrometry(ICP-MS)were used to obtain the above trace element content.Based on the existing research results of previous researchers,mineralogy,petrology,and coal geology were used to obtain the above trace element content.We have studied the distribution patterns and enrichment characteristics of 14 trace elements in No.Ⅱ_(1)coal seam in the study area,with knowledge related to disciplines such as geology,geochemistry,and statistics.The research results indicate that four trace elements,Cl,Hg,Se,and Pb,are significantly enriched in the coal in the study area.Cl may be the volatile matter brought by magmatic activity and the elements activated by it entering the coal seam together.Hg in the study area may mainly come from hydrothermal activity and gymnosperms or herbaceous plants in coal forming plants.Se and Pb are also sulfur loving elements,which can form a wide range of isomorphic relationships and mainly exist in the form of sulfides.Their enrichment may be related to the Yanshan magmatic hydrothermal activity;It is preliminarily believed that the occurrence status of elements Mn,Ga,F,P,and Cd in the study area in No.Ⅱ_(1)coal seam is mainly related to inorganic substances;The occurrence status of four elements,Hg,Cr,Se,and Pb in the study area in No.Ⅱ_(1)coal seam is mainly related to sulfides;The occurrence status of As,U,and Ge elements in the study area in No.Ⅱ_(1)coal seam is mainly related to organic matter.The occurrence state of V element in the study area in No.Ⅱ_(1)coal seam is mainly related t

关 键 词：二_(1)煤层 微量元素 富集特征 赋存状态 鹤壁矿区 

分 类 号：P595[天文地球—地球化学]