单侯矿5号、6号煤的煤岩学特征及煤相分析  

Petrographic Characteristics and Peat Environments of No.5 and No.6 Coal Seams in Danhou Mine

作　　者：楚英军[1] 李姣龙[1] 李彦恒[1] 

机构地区：[1]河北工程大学资源学院,河北邯郸056038

出　　处：《煤炭与化工》2013年第7期4-8,共5页Coal and Chemical Industry

基　　金：中国地质调查局地质调查项目(12120113040000-3);河北省自然科学基金(D2012402026)

摘　　要：运用煤岩学和统计学分析方法,采用荧光煤岩显微镜测试技术,对采自蔚县煤田单侯矿5号煤(12个)和6号煤(13个)的25个煤样进行了对比分析。结果显示:5号煤显微组分以镜质组(平均48.85%)和惰质组(平均48.5%)为主,壳质组和矿物含量较少,均不到1%;6号煤显微组分以镜质组(平均59.22%)为主,惰质组(平均34.6%)次之,然后是矿物(平均5.077%),壳质组含量最少,不到1%。由此计算出的煤相参数GI、TPI、VI、GWI值以及TPI-GI和GWI-VI两个煤相图解反映出5号、6号煤成煤环境不同,5号煤是由开阔水域沼泽向干燥森林沼泽的过渡,而6号煤大都处于开阔水域沼泽,两层煤成煤植物以木本植物为主。Twenty-five coal samples were taken from Danhou Coal Mine, Yuxian coalfield, including twelve samples from No.5 Coal Seam and thirteen samples from No.6 Coal Seam, and the samples were analyzed by using optical microscopy.The results showed that the dominant macerals were vitrinite(av. 48.85%) and inertinite(av. 48.5%), low liptinite and mineral matters(both less than av. 1%) in No.5 Coal Seam; the dominant macerals were vitrinite(av. 59.22%) with minor amounts of inertinite(av. 34.6%) and low mineral matters(av. 5.077%), along with low content of liptinite(less than av.1.86%). All GI, TPI, VI, GWI values and two facies diagrams indicate that the main coal facies were in No.5 and No.6 Coal Seams, the No.5 Coal Seam was the transition between dry forest swamp and extensive water swamp and the No.6 Coal Seam was in extensive water swamp, coal-forming plants were mainly woody plants in both coal seams.

关 键 词：单侯矿5号、6号煤 煤岩组分 煤相 

分 类 号：P618.11[天文地球—矿床学]