宁武──静乐盆地中部煤系高岭岩的特征及成因  

GEOCHEMISTRY AND ORIGIN OF TONSTEINS IN MIDDLE OF NINGWU-JINGLE BASIN,SHANXI PROVINCE

作　　者：景贵飞[1] 王式光[1] 

机构地区：[1]北京大学地质学系

出　　处：《煤田地质与勘探》1995年第1期1-8,共8页Coal Geology & Exploration

摘　　要：通过对宁武－静乐盆地中部高岭岩的组成、产状及稀土和微量元素地球化学特征的研究，发现了Ｋ＋Ｎａ＋Ｃａ、ＴｉＯ２、Ｎｂ、Ｚｒ等与高岭石含量间的正相关关系，讨论了细粒沉积物于沼泽中可能的沉降与扩散机制，认为研究区高岭岩为阴山古陆酸性陆源岩风化产物经搬运沉积后，又在沼泽环境中经淋滤进一步富集而成。n the studies of the occurences, compositions and geochemical characteristics of the tonsteins in middle of Ningwu--Jingle Basin,We found the positive correlations between elements of Nb,Zr,(K + Na + Ca). and TiO2 and the contents of kaolinite, discussed the probable sedimentary and spreading mechanisms of fine--grained sediments in swamp,as well as proposing the view that the local tonsteins were formed by leaching and concentration of the weathering products of medi--acid igneous rocks of Yinshan palaeoland which were transported and sedimented in swamp.

关 键 词：高岭石 沉积矿床 煤系 成因 

分 类 号：P618.110.2[天文地球—矿床学]