中文摘要：

通过X射线衍射分析（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）以及激光拉曼光谱（Raman）等手段,对陕西凤县地区石炭系草凉驿组一系列不同变质程度中高级无烟煤进行研究,建立起该地区煤化程度与碳物质结构有序度的对应关系。结果表明：镜质体对外界温度的变化敏感,镜质体反射率越高,则煤化程度越高。随着煤化程度的升高,煤的芳香片层单层距离、层片直径、平均堆砌厚度、堆砌层数都增大,但均不为线性增大。煤在石墨化过程中,发生孔隙闭合,芳香片层增大,多个片层联结,片层边缘发生卷曲的现象;构造应力与岩浆活动会加快煤向石墨转化速度。

英文摘要：

In order to establish a relationship between the degree of coalification and the order degree of carbon material structure, a series of middle and high ranking anthracite with different metamorphic grades of Carboniferous system Caoliangyi formation in Feng County, Shaanxi was studied by methods of X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy （TEM） and Raman spectrum （Raman）. The results showed that vitrinite was sensitive to outside temperature, the degree of coalification increased with the increase of vitrinite reflectance. With the increase of coalification degree, the layer distance, diameter, average stacking thickness and number of plies of aromatic layer of coals increased nonlinearly. Closing of pores occurred in the process of coal graphitization, and the aromatic layer became bigger, multiple layers connected with each other, the edge of the aromatic layer turned to be curved gradually. Tectonic stress and magmation could improve the process of coal graphitization.