宁武──静乐盆地中部煤系高岭岩的特征及成因

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-步富集而成。 

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

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.