伊敏煤田五牧场井田12~#煤的煤岩学特征及煤相分析  

Coal Petrological Features and Coal Facies Analysis of Coal No.12 in Wumuchang District,Yimin Coalfield

作　　者：李卫旭 姚文博[1] 马家亮 赵存良[1] Li Weixu Yao Wenbo Ma Jialiang Zhao Cunliang(Hebei University of Engineering, Handan, Hebei 05603)

机构地区：[1]河北工程大学,河北邯郸056038

出　　处：《中国煤炭地质》2017年第2期20-23,共4页Coal Geology of China

基　　金：国家自然科学基金(41611130046);河北省自然科学基金(D2016402104)

摘　　要：运用煤岩学和统计学分析方法,采用偏光显微镜,对伊敏煤田五牧场区12~#煤的12个煤样进行了分析,观察到12~#煤的显微组分中镜质组含量较高,且黏土矿物大量出现。通过GI-TPI煤相图和GWI-VI关系图及镜惰比等煤相参数值的研究,结果表明,五牧场区12#煤的煤相类型为低位泥炭沼泽,成煤期水流活动性很强或存在强力的风动力作用。In coal petrological and statistics analytic procedures, using polarizing microscope carried out analysis for 12 coal samples of coal No.12 from Wumuchang district, Yimin coalfield have found higher vitrinite content in coal No.12 macerals and a lot of clay minerals. Through discussion and study on GI-TPI coal facies chart and GWI-VI relationship chart, as well as coal facies parameter values including vitrinite/inertinite ratio have shown that the coal facies type of coal No.12 belongs to low-level bog with strong water flow mobility or under strong wind dynamic actions during coal-forming stage.

关 键 词：伊敏煤田 五牧场区 镜质组 煤相 低位泥炭沼泽 

分 类 号：P618.11[天文地球—矿床学]