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在前人研究成果的基础上 ,从化学成分特征这一角度 ,对山东新汶、肥城煤田太原组高岭石粘土岩夹矸进行了主常量元素、微量元素及稀土元素分析。结果不仅进一步证明了 ,研究区高岭石粘土岩夹矸确由火山灰降落于泥炭沼泽或泥炭坪环境后经蚀变而成 ,而且通过对微量及稀土元素分析结果的研究 ,提出该层夹矸的形成可能受到不同期次及不同性质的火山物质影响的新见解 ,为含煤岩系中火山事件沉积的研究提供了新思路。
Based on the previous research results, the main and trace elements and rare earth elements of kaolinite clays in Taiyuan Formation of Xinwen and Feicheng coalfields in Shandong Province were analyzed from the aspects of chemical compositions. The results not only further proved that the kaolinite clayey rocks in the study area were indeed altered by volcanic ash landing in the peat swamp or peat pad environment, and through the analysis of trace and rare earth elements analysis results, Which may be affected by the volcanic materials of different phases and different types. It provides a new idea for the study of volcanic event sedimentation in coal-bearing rock series.