重庆中梁山矿区主要煤层的煤岩学和煤相特征  

Coal petrology and coal facies of Zhongliangshan mining area, Chongqing

作　　者：侯贤旭[1] 唐跃刚[1] 宋晓夏[1,2] 杨明显 郭明涛[1] 贾龙[1] 

机构地区：[1]中国矿业大学地球科学与测绘工程学院,北京100083 [2]太原理工大学矿业工程学院地球科学与工程系,山西太原030024 [3]重庆地质矿产研究院,重庆400042

出　　处：《煤田地质与勘探》2013年第5期6-10,共5页Coal Geology & Exploration

基　　金：全国煤炭资源潜力预测评价(1212010633908);重庆市国土与房屋管理局科研项目(Dyy5095012010016)

摘　　要：结合国际煤岩学会(ICCP)对显微组分的新分类系统,通过绘制显微组分三元图和煤相图,对重庆中梁山矿区主要煤层显微组分和煤相特征进行了研究。结果表明:该矿区宏观煤岩类型以半亮煤为主,且构造煤较发育;显微组分中以镜质组为主,其中以基质镜质体和碎屑镜质体最为常见。煤相研究表明,本区主要煤层形成于下三角洲平原或下三角洲平原到陆相沉积的过渡环境,属于近陆相的低位沼泽环境,成煤环境受海水作用明显。The main coal seams in Zhongliangshan mining area are analyzed by drawing macerals ternary diagrams and coal facies diagrams in consideration of the maceral classification of ICCP 1994 system. The seams are charac-terized by the predominance of semi clairain and a lot of structural coal, which is a result of Epigenetic tectonic activ-ity. The petrographic composition is dominated by vitrinite, in which collodetrinite and vitrodetrinite are the major macerals. The sedimentary environments deduced from petrographic composition and coal facies diagrams vary from low delta plain to limnic environment, which belong to Rheotrophic, the mires were influenced by marine flooding.

关 键 词：煤岩学 中梁山矿区 显微组分 煤相 

分 类 号：P618.11[天文地球—矿床学]