贵州省方兴煤矿地质特征与可采煤层对比研究  

Comparative study on geological characteristics and minable coal seam of Fangxing Coal Mine in Guizhou Province

作　　者：代伦 Dai Lun(Water Source Team,Guizhou Provincial Bureau of Coal Geology,Guiyang 550081,China)

机构地区：[1]贵州省煤田地质局水源队,贵州贵阳550081

出　　处：《煤炭与化工》2024年第2期82-86,91,共6页Coal and Chemical Industry

摘　　要：为了解方兴煤矿可采煤层赋存位置及厚度变化规律,确定其可采煤层的连续性,采用了标志层法进行对比,同时辅以岩、煤层物性特征、曲线的幅度异常、形态异常及特殊形态组合关系、煤层层间距、煤质特征等进行综合对比。结果表明,区内标志层特征明显,含煤地层发育比较稳定的灰岩及底部铝土质泥岩的岩性特征可建立4个岩性标志层对煤层进行对比,区内可采煤层在含煤岩系中的赋存位置虽有变化,但煤层的总体特征清楚,连接性好,标志层稳定,煤层对比可靠。In order to understand the occurrence position and thickness variation law of minable coal seam in Fangxing Coal Mine and determine the continuity of minable coal seam,the marker bed method was used for comparison,and the physical properties of rock and coal seam,the amplitude anomaly of curve,morphological anomaly and special morphological combination relationship,coal seam spacing and coal quality characteristics were supplemented for comprehensive comparison.The results showed that the characteristics of the marker layer in the area were obvious.The lithological characteristics of the relatively stable limestone and the bottom bauxite mudstone in the coal-bearing strata could establish four lithological marker layers to compare the coal seams.Although the occurrence position of the minable coal seams in the coal-bearing strata in the area changed,the overall characteristics of the coal seams were clear,the connectivity was good,the marker layer was stable,and the coal seam comparison was reliable.

关 键 词：标志层 煤层对比 特征 异常 层间距 灰岩 

分 类 号：P618[天文地球—矿床学]