摘要
通过分析华北石炭二叠纪煤系地层火成岩成因、矿物成分,结合地质年代和同位素测年分析,认为影响我国华北石炭二叠纪煤系地层的火成岩侵入形成于中生代和第三纪,火成岩侵入和裂隙充填物对煤层的厚度、结构、煤质以及瓦斯赋存条件影响严重。
In order to understand the intrusion mechanism and distribution features of the igneous rock to provide the basis for mine gas control,roof control and mining method selection and with the analysis on the formation cause of the igneous rock,the mineral contents, geological age and isotope measured age,the paper hold that the igneous rock intrusion affected to the coal measures strata in Huabei Per- mo-Carboniferous Period was formed in the Mesozoic Era and the Tertiary Period.The paper analyzed the igneous ...
出处
《煤炭科学技术》
CAS
北大核心
2008年第10期78-81,44,共5页
Coal Science and Technology
关键词
火成岩
石炭二叠纪
侵入变质
裂隙充填物
igneous rock
Permo-Carboniferous Period
intrusion metamorphism
filling material in fissure
