【摘要】 韦一井田位于宁东煤田韦州矿区中部，目前尚未开发利用，为了探讨该区山西组煤岩煤质与成煤环境的关系，本文从井田内煤岩煤质及地球化学特征入手，主要分析了各可采煤层灰分、硫分、镜/惰比、酸/碱值等指标，探讨了该指标对成煤环境的指示意义。研究表明：山西组各可采煤层属于低灰、低硫的中等煤化度烟煤；成煤期覆水性、酸/碱值在垂向上的趋势为先减小后增大，S_t,d值则相反；各可采煤层属潟湖相聚煤环境，聚煤作用受控于古地形、古气候。更多还原

【Abstract】 Weiyi wellfield is located in the middle of The Weizhou Mining Area of Ningdong Coalfield, which has not yet been developed and utilized, in order to explore the relationship between coal rock coal quality and coalforming environment of the Shanxi Formation in this area, this paper starts from the coal rock coal quality and geochemical characteristics of coal rock in the wellfield, mainly analyzes the ash, sulfur, mirror/inert ratio, acid/alkali value and other indicators of the recoverable coal seam, and analyzes and discusses the indicative significance of this index on the coal-forming environment. The results show that the recoverable coal seams in the Shanxi Formation belong to the medium coal-based bituminous coal with low ash ash and low sulfur; The tendency of water-cover and acid/base value in the vertical upward trend of the coal-forming period is to decrease first and then increase, and the St and d values are the opposite; Each recoverable coal seam belongs to the coal environment of the Lagoon, and the coal gathering effect is controlled by the paleotopic terrain and paleoclimate.更多还原