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曲江井田老山下亚段(P3l2^1)岩性特征及煤层对比剖析

Lithological Characteristics and Coal Seam Comparative Analysis of in Laoshan Lower Subsection(P3l2^1)of Qujiang Minefield
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摘要 岩煤层对比关系到采掘工程布置是否合理,通过对已有地质勘探资料的分析研究,分析曲江井田老山下亚段地层岩性特征及B4煤层对比方法,采用煤层特征、顶底板特征、标志层、岩性、岩相、古生物组合及煤岩层间距等多种方法对井田内的煤岩层进行对比,可以准确地判定地层层位和确定B4煤层。 The correlation between rock and coal seams is related to whether the mining engineering layout is reasonable.Based on the analysis and research of the existing geological exploration data,this paper analyzes the stratigraphic lithologic characteristics of the lower Laoshan sub section of Qujiang mine field and the correlation method of B4 coal seam.By means of coal seam characteristics,roof and floor characteristics,marker bed,lithology,lithofacies,paleontological assemblage and coal rock interval,the coal and rock strata in the minefield are compared,which can accurately determine the stratum horizon and determine the B4 coal seam.
作者 魏景春 魏巍 Wei Jingchun;Wei Wei(195 Geological Party,Coal Geological Bureau of Jiangxi Province,Jiangxi Nanchang 330200)
出处 《山东煤炭科技》 2020年第11期175-177,共3页 Shandong Coal Science and Technology
关键词 老山下亚段 岩性特征 B4煤层 煤层对比 Laoshan Lower Subsection lithological characteristics B4 coal seam coal seam comparison
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