阳关寨勘查区煤质特征及成煤环境  

Coal Quality and Coal-forming Environment in the Yangguanzhai Exploration Area, Weining, Guizhou

作　　者：刘静[1] 

机构地区：[1]贵州省煤田地质局地质勘察研究院,贵阳550081

出　　处：《四川地质学报》2017年第3期400-403,共4页Acta Geologica Sichuan

基　　金：贵州省第二批整装勘查项目(ZZKC2013-07)

摘　　要：为了全面了解贵州威宁阳关寨勘查区主可采煤层的煤质指标,通过煤样灰成分、硫分、镜质组反射率等与成煤环境的关系进行研究。发现3、4、5煤以中高灰煤为主,3号煤层属特低硫~中硫分煤,以特低硫煤为主,4号煤层属特低硫~高硫分煤,5号煤层属特低硫~高硫分煤,灰分从上至下似有降低的趋势。硫分从上至下变化较大,总体上是"升高-降低-再升高-再降低"的趋势。煤质特征反应成煤处于较稳定且受海水侵扰较小的滨海泥炭沼泽环境。This paper deals with coal quality indices such as ash content, sulfur content, vitrinite reflectance of minable seams and their relation with coal-forming environment in the Yangguanzhai Exploration Area, Weining, Guizhou. The study indicates that seams 3, 4, 5 are characterized by high ash content, seam 3 by low sulfur content, seam 4 by very low and high sulfur content, seam 5 by very low sulfur and high sulfur content. The ash content increases ascendingly and sulfur content varies largely. Coal quality change suggests that the coal formation took place in a seamarsh environment.

关 键 词：煤质特征 勘查区 成煤环境 阳关寨 

分 类 号：P618.11[天文地球—矿床学]