淮北煤田太原组灰岩沉积学特征研究

Research on Sedimentary Characteristics of Taiyuan Formation Limestone in Huaibei Coalfield

通过对淮北煤田勘探时期揭露太原组灰岩的钻孔统计分析及采样测试,详细研究了淮北煤田太原组灰岩的厚度、层数、岩性及化学成分等沉积学特征,并分矿区进行了对比,揭示了太灰在研究区内的沉积学特征。研究表明:太原组地层在研究区内自西向东厚度增大且灰岩层数增多,自南向北厚度减小且层数也减少,沉积环境多形成于水动力条件较弱的环境。

By means of the statistical analysis and sample test for the drillholes which exposed the Taiyuan formation limestone in exploration period of Huaibei coalfield,sedimentology characteristics of Taiyuan formation limestone in Huaibei coalfield,such as the thickness,layers,lithology and so on,were detailed researched and compared sub area,finally the Taiyuan formation limestone＇ s deposition law were revealed in the researched area.Research shows that：from west to east,the thickness and limestone layers of Taiyuan formation in the researched area are increasing,from the south to the north,thickness decreases and the layer also reduce,and the depositional environment formed on the weak hydrodynamic conditions.