贵州盘县谢家河沟煤矿煤中硫特征及其成因分析

Discussion on genesis and distribution properties of sulfur in Xiejiahegou coal deposit in Panxian of Guizhou Province

根据地质勘探资料和煤心煤样的分析结果,对贵州盘县谢家河沟煤矿可采煤层煤中硫的特征及其成因进行了分析。结果表明:该区可采煤层从特低硫煤-高硫煤均有,龙潭组下段煤层为高硫煤,龙潭组上段下部为低硫-特低硫煤,龙潭组上段上部为中高-高硫煤;研究区煤中硫主要与硫的来源和沉积环境有关,龙潭组早期以泻湖-潮坪沉积体系为主、晚期以三角洲-潮坪沉积体系为主。

On the bases of geologic field exploration data and laboratory analysis result of coal core samples,the sulfur original source and sulfur content of the minerable coal seams are discussed for the Xiejiahegou coal deposit of Guizhou Province in this paper.The result indicates that the sulfur content is ranging from low sulfur content coal to high sulfur content coal.The coal seam of high sulfur content is located at the lower section of Longtan Formation,the coal seam of low-rather low sulfur content is lovated in the lower part of the upper section of Longtan Formation,and the coal seam of middle-high sulfur content is located in the upper part of upper section of Longtan Formation.It is inferred that the sulfur content of coal is related to sulfur original source and sedimentary environment.The coal mining area is in the lagoon-tidal flat sedimentary system in the early stage of Longtan Formation,and is in the deltaic-tidal flat sedimentary system in the later stage of Longtan Formation.