摘要
通过对历年煤炭地质勘探工作成果资料、煤炭生产矿井资料以及相关的科研成果资料的统计分析和推断,对重庆地区未开采和隐伏的晚二叠世煤层进行了煤类预测,并绘制出了煤类分布图。重庆地区晚二叠世煤层的煤类分布在横向上较有规律,主要以高变质煤和中变质煤为主,大体呈北东向展布的总趋势,隆起区煤阶较低。煤变质主要以深成变质作用为主,排除岩浆热变质作用和接触变质作用,局部受深断裂热变质作用(华蓥山、七曜山基底断裂)影响。
Based on the statistical analysis and inference on the coal geological exploration data,production data of coal mine and related research results over many years,the paper makes the coal sorts prediction on the unexploited and concealed coal seam in Late Permian in Chongqing area,and plots the coal sorts distribution map.The coal sorts distribution is regular along the horizontal direction,most of which are high and middle metamorphic coal.It has a general trend of distributing along east-north direction,low in uplift area.The coal metamorphose is major in plutonic metamorphism and minor in deep fault thermal metamorphism（Huaying mountain and Qiyao mountain basement faults）,excluding magmatic thermal metamorphism and contact metamorphism.
出处
《中国煤炭》
北大核心
2014年第11期30-35,共6页
China Coal
关键词
晚二叠世
煤类分布
煤变质规律
重庆地区
Late Permian
coal sorts distribution
metamorphic law
Chongqing area
