磁西一号勘查区上煤组煤质特征及成煤环境  

Coal-formimg environment and coal quality of upper formation in Cixi exploration district

作　　者：权巨涛[1] 宋志坚[1] 

机构地区：[1]中国煤炭地质总局第一勘探局,河北邯郸056004

出　　处：《河北工程大学学报（自然科学版）》2009年第2期66-69,共4页Journal of Hebei University of Engineering:Natural Science Edition

摘　　要：通过对磁西一号勘查区上煤组的研究,弄清了区内煤质特征及其变化规律:区内各煤层多为半暗型-半亮型煤,光亮型煤次之;煤的有机组分以镜质组为主,惰质组次之,壳质组含量很少,无机组分以粘土矿物为主;2号煤层原煤硫分,介于0.09%-1.54%之间,平均0.36%;4号煤层硫分介于0.98%-3.80%之间,平均2.50%,6号煤层硫分介于0.24%-4.18%之间,平均2.44%;区内各煤层原煤灰分产率较高,变化幅度亦较大,从低灰至高灰煤均有分布。通过分析硫分、灰分、煤岩组分与成煤环境之间的关系,得出了本区上煤组成煤环境为碳酸盐台地、障壁岛-泻湖和潮坪基础上发育的泥炭沼泽和三角洲平原发育的泥炭沼泽。Coal quality characteristics were obtained from the study of coal quality of upper formation in Cixi exploration district. It was found that lithotype is belonged to bright coal and semibright coal, mainly black. Vitrinite of organic components in coal samples is most important, and inertinite takes second place, exinite little. The main components in inorganic components were clay minerals. Sulfur content of 2 # ,4 # , 6 # raw coal range from 0.09% to 1.54%, 0.98% to 3.80% 0.24% to 4.18% ,and the average value were 0.36% ,2.50% ,2.44%, respectively. In this district, ash content in high yield varied from low- ash to high - ash. It can be concluded from the relationship between sulfur content , ash cont- ent, maceral and coal - forming environment that the sedimentary envimment belong to peat bog formed in carbonate platform, barler island - lagoon, tidal flat and peat bog in delta plain.

关 键 词：磁西勘探区 煤质 成煤环境 

分 类 号：P618.11[天文地球—矿床学]