云南砚山干河煤矿超高有机硫煤的煤岩煤质特征  

Coal Petrology and Coal Quality Characteristics of Superhigh Organic Sulfur Coal in Ganhe Coalmine, Yanshan, Yunnan

作　　者：李彬[1] 韩守程 贺鑫[1] 马天捧 唐跃刚[1] 

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083

出　　处：《中国煤炭地质》2016年第1期6-12,共7页Coal Geology of China

基　　金：国家重点基础研究发展计划(973)资助项目(2012CB214901)

摘　　要：云南省砚山县干河煤矿晚二叠世吴家坪组超高有机硫煤形成于浅海碳酸盐局限台地—潮坪沉积环境。运用煤岩学、煤化学等学科理论方法,系统研究了干河煤矿1号煤层的煤岩煤质及煤相特征等。结果显示:1所测煤样全硫含量均在10%左右,有机硫含量在9%左右,属超高有机硫煤;2宏观煤岩类型以半暗型及暗淡型煤为主,显微组分则以镜质组占优势,其中主要为碎屑镜质亚组,惰质组以有细胞结构惰质组为主,煤中矿物质以黏土矿物和黄铁矿为主;3煤层形成于潮湿的还原环境,为低位泥炭沼泽,成煤植物以草本植物为主,组织结构保存差,遭受破坏程度强。The superhigh organic sulfur coal of Wujiaping Formation in late Permian at the Ganhe coalmine, Yanshan, Yunnan prov- ince, China was formed in a neritic carbonate restricted platform--tidal flat sedimentary environment. Using theories and methods of coal petrology and coal chemistry etc. disciplines, characteristics of coal petrology, coal quality and coal facies of coal No. 1 in Ganhe coalmine have been systematically studied. The results show： ①Total sulfur content of all tested samples is about 10%, organic sulfur content about 9%, belong to superhigh organic sulfur coal. ②Coal macrolithotype is mainly semidull and dull coal. Maceral in the coal is main vitrinite in which mainly vitrodetrinite. Inertinite is largely with cellular structure. Minerals in the coal are mainly clay miner- als and pyrite. ③ Coal seams were formed in a humid reducing environment of low-level peat mire. The herb plant is main coal-form- ing material with poor tissue preserved and strongly destructed.

关 键 词：高有机硫煤 煤岩 煤质 煤相 砚山干河煤矿 

分 类 号：P618.11[天文地球—矿床学]