济宁煤田金乡矿区岩浆活动及对煤层煤质的影响  

Magmatic Activity and Its Impact to Coal Seam and Coal Quality in Jinxiang Mining Area,Jining Coalfield

作　　者：黄维清 周俊杰[2] 郑荣华[2] 

机构地区：[1]中煤第一勘探局勘察院,河北邯郸056004 [2]河北工程大学资源学院,河北邯郸056038

出　　处：《中国煤田地质》2007年第5期16-17,64,共3页Coal Geology of China

摘　　要：在对济宁煤田金乡矿区岩浆侵入详细调查的基础上,分析了岩浆侵入煤系的层位与分布规律,岩浆岩的岩性特征及侵入时代。岩浆以岩脉和岩床形式侵入煤层,使煤层出现分叉、变薄甚至全部被吞蚀。岩浆岩的侵入破坏了煤层的连续性和完整性,并使煤层的物理性质、化学成分和工艺性能发生了显著变化,煤质变差,降低了煤的利用价值。Based on detailed investigation of magmatic intrusion in Jinxiang mining area, Jining coalfield, analyzed horizon of coal measures magma intruded and pattern of distribution, lithologic characteristics of magmatic rocks and intruding time. Magma intruding into coal seams in forms of dikes and sills made coal seam splitting, thinning even thoroughly corroded off, thus destructed coal seam continuity and integrality. Furthermore, coal seam physical property, chemical composition and technical property changed obviously, made the coal quality poorer, lowered down value in use.

关 键 词：岩浆岩 煤层 煤质 金乡矿区 

分 类 号：P583[天文地球—岩石学] P618.11[天文地球—地质学]