Graphite mine and mineral assemblage of surrounding rock and its indicative significance to metamorphic facies

Graphite mine and mineral assemblage of surrounding rock and its indicative significance to metamorphic facies

Haihua Li¹, Ye Su², Litao Qin^1,3, Junjie Ma¹, Bohui Xu^1,4*

¹School of Earth Science and Engineering, Hebei University of Engineering, Handan, Hebei 056038, China. ²Second Geological Team of Hebei Coalfield Geological Bureau (Dry hot Rock Research Center of Hebei) Geology Department, Xingtai, Hebei 054001, China. ³Second Hydrogeological Team, China’s Coal Geological Administration, Xingtai, Hebei 054000, China. ⁴College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.

The different metamorphic mineral assemblages can reflect the difference of metamorphic temperature and pressure and determine the different metamorphic facies. The identification and determination of the occurrence of characteristic metamorphic minerals and the symbiotic association of typical metamorphic minerals can determine the metamorphic phase of graphite and its surrounding rock, and further infer the formation conditions of graphite. In this paper, the mineral assemblage relationship of a graphite deposit and its surrounding rock in the south of Hebei province is studied by means of microscopic observation and Electron Probe Micro Analysis (EPMA), and the metamorphic facies of the graphite deposit and the temperature and pressure conditions of the deposit are deduced. The study shows that the metamorphic facies of the graphite deposit is low amphibolite facies and the ore-forming conditions are medium temperature and medium pressure.

Keywords: Graphite, Electron microscope, Metamorphic facies, Metamorphism

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How to cite this article:
Haihua Li, Ye Su, Litao Qin, Junjie Ma, Bohui Xu. Graphite mine and mineral assemblage of surrounding rock and its indicative significance to metamorphic facies. American Journal of Scientific Research and Essays, 2022,7:4. DOI:10.28933/ajsre-2022-03-1805

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