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

Authors

LI Yang, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
WANG Lu, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
CAO Daiyong, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, ChinaFollow
DU Xin, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
ZHAO Meng, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China
LIU Liming, Chongyi Coal Mine, Jiangxi Xianliang Coal Industry Co. Ltd., Ganzhou 341000, China
WEI Yingchun, College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China

Abstract

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.

Keywords

coal graphite, graphitization difference, grade of coal graphite, Chongyi of Jiangxi

DOI

10.3969/j.issn.1001-1986.2019.05.011

Recommended Citation

LI Yang, WANG Lu, CAO Daiyong, et al. (2019) "The discovery and geological significance of coal-formed graphite in Chongyi coal mine in Jiangxi Province," Coal Geology & Exploration: Vol. 47: Iss. 5, Article 12.
DOI: 10.3969/j.issn.1001-1986.2019.05.011
Available at: https://cge.researchcommons.org/journal/vol47/iss5/12

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