铜川矿区韩古庄-演池勘探区煤质特征及沉积环境分析  

Coal quality parameters features and sedimentary environment analysis of Hanguzhuang-Yanchi exploration area of Tongchuan mining area

作　　者：张永强 侯丁根 薛海军 常宇飞[1] Zhang Yongqiang;Hou Dinggen;Xue Haijun;Chang Yufei(Shaanxi Coal Geophysical Prospecting and Surveying Co.,Ltd.,Xi＇an,Shaanxi 710005,China;Key Laboratory of Coal Resources Exploration and Comprehensive Utilization,Ministry of Land and Resources,Xi＇an,Shaanxi 710021,China)

机构地区：[1]陕西省煤田物探测绘有限公司,陕西省西安市710005 [2]国土资源部煤炭资源勘查与综合利用重点实验室,陕西省西安市710021

出　　处：《中国煤炭》2018年第8期47-52,67,共7页China Coal

摘　　要：在对韩古庄-演池勘探区煤层煤质参数特征分析、评价的基础上,探讨了煤中硫分和灰分与成煤环境间的关系。研究表明:研究区煤具有低灰分、低挥发分、中高-高硫分等特征。煤中硫分具有"下高上低、东高西低"的空间分布特点,灰分变化趋势与其相反,表明研究区成煤环境自上而下、自西向东受海水影响逐渐增强,与灰成分指数评价结果一致。综合分析确定,10#煤层形成于受海水影响较大的瀉湖、潮坪相强还原型环境,5#煤层形成于受海水影响较小的潮坪、障壁岛相弱还原型环境,10#煤顶部的泥质灰岩为二者沉积环境的过渡层。Based on the analysis and evaluation of coal quality parameters features in the Hanguzhuang-Yanchi exploration area,the relation between the sulfur content and ash content of coal and the coal formation sedimentary environment was discussed.The results showed that the coal from the research area had low ash content,low volatiles and medium-high sulfur content and other features.The space distribution of sulfur content of coal in research area was mainly characterized by lower in the upper area but higher in the under area and lower in the west but higher in the east,while the variation trend of ash content was the opposite.It showed that the influence of sea water on coal sedimentary environment was increased from upper to lower,as well as from west to east,which was similar to coal ash composition index evaluation results.Comprehensive analysis indicated that the No.10 coal seam was formed in lagoon and tidal-flat facies peat swamp with strongly reductive environment highly influenced by the sea water and No.5 coal seam was formed in a tidal-flat and barrier island facies peat swamp with weakly reductive environment less influenced by sea water,the limestone at the top of No.10 coal seam was the transition layer of the two sedimentary environment.

关 键 词：煤质特征 成煤环境 韩古庄-演池勘探区 

分 类 号：P618.11[天文地球—矿床学]