邢台矿区葛泉煤矿9号煤有机地化特征

Characteristics of organic geochemistry of No.9 coal in Gequan Mine of Xingtai Mining Area

本文采用有机地球化学的研究方法,利用有机溶剂对样品进行抽提并进行组份分离,对有机质组分特征进行了分析,并对有机质与成煤环境进行了探讨。通过饱芳比发现,芳香烃占优势,说明9号煤为腐殖型煤。通过Pr/C17和Ph/C18等参数分析,9号煤形成于沼泽环境。芳香烃中萘系列、菲系列以及硫芴的含量比较高,说明成煤植物为陆源高等植物,成煤环境为海相还原环境。

The organic geochemical research method was used to extract the sample and separate the components by organic solvent. The characteristics of organic matter were analyzed, and the organic matter and coal-forming environment were discussed. It was found by aromatics ratio that aromatic hydrocarbons dominated, indicating that coal No. 9 was a humic coal. The analysis of parameters such as Pr/C17 and Ph/C18 showed that No. 9 coal was formed in the swamp environment. The content of naphthalene series, phenanthrene series and glucosinolate in aromatic hydrocarbons was relatively high, indicating that the coal-forming plants were terrestrial high-grade plants, and the coal-forming environment was a marine-reduced environment.