西山煤田太原组煤岩学及煤化学特征

Coal petrography and coal chemical characteristics of Taiyuan formation in Xishan Coal Field

以西山煤田马兰矿区石炭系太原组6#、8#、9#及10#煤为研究对象,采用显微光学、X射线荧光光谱法等方法,分析了该煤层的煤岩学、煤地球化学和煤相特征,探讨其原始成煤环境及演化规律。太原组上部6、8#煤受海水影响较大,下部9#煤及10#煤受海水影响较小,从而形成了海陆交互的成煤环境。

The paper have based on No.6 No.8 No. 14 and No. 15 main mineable coal in Malan mining area of Xishan coalfield as research objects, Methods of optical microscope, X-ray fluorescence spectrometry （XFS） have been used to analysis rnicrolithotype and geochemical parameters of coal, whose formation environment and evolution have been discussed. The results show that： No.6 and No.8 coal has been moreless influenced by sea erosion, whereas No.9 coal and No. 10 coal do less, consequently formed transitional marine to limnic facies environment.