淮南煤田朱集井田岩浆侵入特征研究  

A Study on Magmatic Intrusion Features in Zhuji Minefield, Huainan Coalfield

作　　者：刘丙祥[1] 刘春平[2] 孙明聪[2] 刘桂建[3] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]淮南矿业集团有限责任公司朱集项目部,安徽淮南232001 [3]中国科学技术大学地球和空间科学学院,安徽合肥230026

出　　处：《中国煤炭地质》2010年第3期13-16,27,共5页Coal Geology of China

基　　金：由国家自然科学基金(40873070);安徽省优秀青年基金(08040106909);淮南矿业集团联合资助

摘　　要：在对淮南煤田朱集井田钻孔资料分析的基础上,结合侵入岩化学成分测试、X-射线衍射分析以及薄片显微镜下鉴定等结果,得出研究区侵入岩主要以岩床的形式侵入煤系地层,岩性以闪长岩、花岗岩为主,岩床层数多为单层;受NWW—NW向断裂构造带控制,侵入岩体的分布范围呈现从西向东逐渐扩大,在垂向上,从上部煤层到下部煤层,受岩浆影响的程度有明显加大的态势。由于岩浆侵入煤层,严重破坏了煤层的结构和稳定性,同时,降低了煤的工业利用价值,加大了开采难度。Based on drilling data analysis in Zhuji minefield, Huainan coalfield, combined with results of intrusive rock chemical composition testing, X-ray diffraction analysis, rock thin-section microscopic analysis, found out those intrusive rocks in the area are mainly in the form of single layered diorite and granite sills intruded into coal measures strata. Controlled by NWW-NW faulted zone, distribution range of intrusive rocks is gradually extended from west to east. Vertically, from upper coal seams to lower coal seams, the magmatic impact is obviously extended. Because of the intrusion, coal seam texture and stability are seriously destructed, at the same time lowered industrial value in use of the coal and mining difficulty increased.

关 键 词：朱集井田 岩浆侵入 煤层 煤质 

分 类 号：P588.12[天文地球—岩石学]