摘要
淮北煤田上石盒子组泥质岩中粘土矿物以高岭石、伊利石为主，绿泥石、蒙脱石次之，3煤段上部泥质岩中伊利石增多，地球化学指标也表明为半成水环境，说明上石盒子组上部为一套受海水影响的岩性组合。
The clay mineral assimblage of the upper Shihezi formation is composed of illite,kaolinite and some chlorite and smectite. The illite content increases in the upper part of thisformation,but the kaolinite dominates in the lower part.' Which indicates that There wis ashort term of sea level rise in the late Permian in Huaibei region.
关键词
煤田
上石盒子组
泥质岩
粘土矿物
Huaibei Coal Field
upper Shihezhi formation
mudstone
clay mineral
