摘要
通过 x射线衍射曲线和扫描电镜研究,揭示出蔚县煤田煤系泥质岩粘土矿物中的高岭石主要为来自基底灰岩风化壳,少量为盆地内生成。伊利石有从剥蚀区搬运来的,也有由蒙脱石和高岭石转化而成的。蒙脱石则主要属盆地自生并与中基性火山物质有直接关系。分别反映了酸性冲洪积,酸—弱碱性沼泽、河一湖及偏碱性干旱冲洪积环境。
From research on diffracted curve of X- ray and scanning electron microscope, it has discovered that kaolinite of clay minerals in argillite of coal- bearing strata in Yuxian coal- field primarily originated from basal weathering crust of limestone and a little part formed in the basin. Illite originated may be transport from the area of denudation, or may be transfered from montmorillonite and kaolinite. Montmorillonite primarily belongs to authigene in basin and there was close relation with mid base volcanic material. It has separately reflected environment, such as: acid alluviation and flood, acid- weakly saline bog, river- lake and salty dry weather alluviation and flood sedimentary environment.
出处
《中国煤田地质》
2001年第1期14-16,共3页
Coal Geology of China