贵州省陆相成煤环境特征分析  

Analysis of Environmental Characteristics of Continental Coal Formation in Guizhou Province

作　　者：戴林[1] DAI Lin(Geological Exploration Research Institute,Guizhou Bureau of Coal Geological Exploration)

机构地区：[1]贵州省煤田地质局地质勘察研究院

出　　处：《现代矿业》2024年第9期50-53,58,共5页Modern Mining

摘　　要：为了最大限度客观反映贵州省陆相成煤环境典型矿床的基本地质特征,在收集以往地质勘查资料及现场踏勘了解现状的基础上,合理确定煤炭沟煤矿和罗州煤矿采样位置及数量,并对煤岩样进行分析。研究得出,2个煤矿的样品固结较好,均能代表陆相成煤环境特征,具有相应的煤类特征。同时,通过实地调查选定赫章县可乐乡作为实测剖面位置,采集并保存含煤岩系地层中具有代表性的不同规格的岩石、煤炭、化石标本和钻孔样品。结果表明,宣威组主要是由灰色细砂岩、粉砂岩、粉砂质泥岩、泥质粉砂岩、黏土岩及煤层组成的韵律层,较明显地反映了含煤地层宣威组(P_(3)x)的沉积环境特征,为一套陆相地层的含煤沉积建造。In order to objectively reflect the basic geological characteristics of typical ore deposits in the continental coal-forming environment of Guizhou province to the maximum extent,the sampling posi-tions and quantities of Meitan'gou Coal Mine and LUOZHOU Coal Mine are reasonably determined on the basis of collecting the previous geological exploration data and the current situation of field exploration,and the coal rock samples are analyed.The results show that the samples from the two coal mines are well consol-idated and can represent the environmental characteristics of continental coal formation and have corre-sponding coal characteristics.At the same time,through field investigation,Kele Township of Hezhang County was selected as the measured section location to collect and preserve the representative rocks,coal,fossil specimens and borehole samples of different specifications in the coal-bearing rock strata.The results show that the Xuanwei Formation is mainly composed of gray fine sandstone,siltstone,silty mudstone,ar-gillaceous siltstone,clay rock and coal seam,which clearly reflects the sedimentary environment character-istics of the coal-bearing formation Xuanwei Formation(P_(3)x),and is a set of coal-bearing sedimentary for-mation in continental strata.

关 键 词：陆相成煤 含煤岩系地层 沉积环境特征 

分 类 号：P618.11[天文地球—矿床学]