江西崇义矿煤成石墨的发现及其地质意义

为研究江西省崇义矿煤成石墨特征，采用光学显微镜、X射线衍射（XRD）、激光拉曼光谱（Raman）、高分辨率透射电子显微镜（HRTED）等测试手段，对二叠系上统龙潭组老山段煤样进行测试分析。结果表明，光学显微镜下可以观测到石墨化显微组分，且XRD衍射图谱出现d₀₀₂石墨衍射峰，拉曼光谱呈现峰形尖锐的石墨特征峰（G峰），高分辨透射电镜观察到多层有序结构碳层，碳层出现平直化现象。综合测试分析结果表明，江西崇义矿区样品发育不同程度的石墨晶体结构，已经出现煤成石墨矿产。研究发现为石墨资源进一步开发利用奠定基础。 

The discovery and geological significance of coal-formed graphite in Chongyi coal mine in Jiangxi Province

In order to study the characteristics of coal-formed graphite in Chongyi mine, Jiangxi Province, the coal in Laoshan Section of Upper Permian Longtan Formation in Chongyi mining area was tested and analyzed by means of optical microscope, X-ray diffraction(XRD), Raman spectroscopy and HRTED. The test results showed that the graphitization maceral could be observed under the optical microscope. The XRD diffraction pattern showed a graphite diffraction peak of d₀₀₂, and the Raman spectrum showed a characteristic peak of graphite(G peak) with sharp peak shape. Multilayer ordered structure of carbon layer was observed by high resolution transmission electron microscope, and the carbon layer had been flattened. The results show that the samples in Chongyi mining area of Jiangxi Province have developed graphite crystal structure to different degrees, and there have been coal-formed graphite minerals. The paper lays the foundation for further exploration and development of graphite resources.