摘要
本文主要研究了山西北部晚古生代煤系高岭岩的岩石、矿物、地球化学特征，确定了高岭岩的主要富集层位：（１）本溪组底部铝土质高岭岩；（２）太原组煤夹矸高岭岩；（３）山西组煤夹矸高岭岩。从而得到研究区高岭岩源岩一为风化壳化学风化作用产物，一为火山碎屑沉积物的结论。进而分析了不同层位。
In the present paper,the stress is laid on the genesis and regional distribution of the kaolin rocks in the coal measures in northern Shanxi.According to petrographic,miner- alogical and geochemical characteristics,the main enrichment horizons of the kaolin rocks are identified in the Late Palaeozoic coal measures in the study area.They are(1)bauxitic kaolin rocks in the basal part of the Benxi Formation,(2)tonstein in the Taiyuan Forma- tion,and(3)tonstein in the Shanxi Formation.The source rocks of the kaolin rocks may consist of the weathering products or the volcanoclastic sediments.Finally,two genetic models for normally deposited kaolin rocks and for the diagenetic changes of the volcan- oclastic sediments are thus proposed.
