含煤岩系的岩石常由砾岩、砂岩、粉砂岩、泥岩和煤组成,有时还夹有铝土岩、粘土岩、燧石层、石灰岩和火山岩,不论那一种岩石,其成分中无一不含有粘土矿物。目前,粘土矿物的研究主要从两个方面入手;一是研究粘土矿物的几何形态,即现存状态,如对粉晶进行 x 射线衍射,红外吸 The rocks of the coal-bearing series are often composed of conglomerates, sandstones, siltstones, mudstones and coals, and sometimes bauxite, claystone, chert, limestone and volcanic rocks, regardless of the type of rock Does not contain clay minerals. At present, the study of clay minerals mainly from two aspects; one is to study the clay mineral geometry, the existing state, such as the powder crystal x-ray diffraction, infrared absorption