淮北矿区煤矸石岩石矿物学特征研究  

Study on Petrological and Mineralogical Features of the Coal Gangue of Huaibei Mining Area

作　　者：李冬[1] 严家平[1] 徐良骥[1] 王曦[1] 喻怀君[2] 董祥林[2] 蔡毅[1] 

机构地区：[1]安徽理工大学地球与环境学院,安徽淮南232001 [2]淮北矿业集团有限责任公司,安徽淮北235000

出　　处：《地球科学期刊（中英文版）》2014年第4期201-205,共5页Scientific Journal of Earth Science

基　　金：安徽省国土资源科技项目（2012-K-24）本论文在矿山地质环境治理与土地高效利用项目支持下完成,样品测试均由西北大学大地动力学国家重点实验室测试分析,在此表示感谢.

摘　　要：以淮北矿区煤矸石为研究对象，通过对煤矸石山的现场调查分类研究、样品薄片显微镜下观察分析，以及粉晶x射线衍射和扫面电镜等方法的测试分析，运用沉积学、岩石学基本理论，对煤矸石岩石矿物学特征进行研究。研究结果表明：淮北矿区煤矸石矿物组成简单，无论是较细粒的粉砂岩，以及不同粒径的砂岩，石英含量整体较高；在粉砂岩和细砂岩中，除了含大量的石英细碎屑之外，粘土矿物成分含量较高且均以机械沉积的碎屑高岭石为主，致使岩石内部的胶结能力较弱，从而此类岩石的硬度较小，容易风化；煤矸石的整体硬度较小，在地表自然环境下，容易风化为细小的颗粒状。Based on the coal gangue of Huaibei mining area, the petrological and mineralogical features of coal gangue are studied on through the investigation classification study of gangue hills, the sample wafer microscope analysis, X-ray diffraction analysis and scanning electron microscope analysis and so on research methods, and by using the basic theory of sedimentology and petrology The result shows that the mineral composition of the coal gangue of Huaibei mining area is simple. The quartz percentage of the coal gangue is high, whether it is siltstone or the sandstone of the different size. There is a large number of clay that is mainly mechanical sedimentary clastic kaolinite in the siltstone and fine sandstone, in addition to much quartz clastic, which casing the cementation ability inside the rock is weak. So the hardness of these kinds of rock is low and they are easy to weathering. The hardness of the coal gangue is low. When the coal gangue is in the natural environment of the earth＇s surface, it is easy to weathering to the small granular

关 键 词：煤矸石 岩石学特征 矿物学特征 淮北 

分 类 号：P[天文地球]