以准格尔煤田西南部黄玉川煤矿6上煤层为研究对象测试了样品的煤岩显微组分、煤质参数、硫分及部分微量元素含量,确定了6上煤层的煤岩煤质特征;结合煤层厚度变化及煤地球化学参数分析了原始泥炭沼泽沉积环境特征。结果表明,黄玉川煤矿6上煤层为深成变质作用下形成的低变质程度烟煤,低水、低灰、低硫、高挥发分,形态硫主要以有机硫为主,不易脱除。有机显微组分组主要为镜质组和惰质组,煤中无机显微组分主要为结晶度较高的粘土矿物高岭石类。含煤沉积体系为上三角洲平原环境,原始泥炭沼泽覆水条件良好,为还原性中~高位泥炭沼泽,成煤时部分分层曾受海水影响。
Focused on the No. 6 upper coal seam of southwestern Jungar coalfield, the coalmaceral, coal quality parameters, sulfur content and some tract element contents are identified.Based on the results, the characteristics of coal petrology and quality are confirmed. In further,the original peat bog sedimentary environment is analyzed according to the change of coal seamthickness and coal geochemical parameters. The results show that the No. 6 upper coal seam ofHuangyuchuan Coal Mine forming under the effect of plutonic metamorphismis is a kind of lowmetamorphic degree bituminous coal with low water, low ash, low sulfur, high volatile. Sulfurforms are mainly composed of organic sulfur, which is not easy to remove. Organic maceralgroups are mainly vitrinite and inertinite, and inorganic mineral matters are mainly clay mineralsof kaolinite class with high crystallinity. Coal-bearing sedimentary system was delta alluvial plainformed in middle-high peat bog with good overlying water condition, some coal layer was affectedlay seawater.