Abstract
The oxidation–reduction mineralogical features of graphite deposit in Pingdu Shandong province were studied by field researches, polarization microscope, X-ray diffraction (XRD), and SEM. The results show that the major rocks of the reduction graphite zone are graphite–quartz anorthosite and gabbro. The major rocks of the oxidation graphite zone are marble with graphite, biotite granite, and monzogranite. The main minerals of the reduction zone are plagioclase, pyroxene, quartz, pyrite, etc. The graphite is aphanitic graphite appearing as dense massive, layered, and spherical aggregates. The main minerals of the oxidation zone are calcite, quartz, K-feldspar, biotite, amphibole, chlorite, etc. The graphite is flake graphite uniformly dispersed in the loose and strongly eroded rocks. A large number of rocks in the area have suffered chloritization and regional metamorphism, indicating that the formation of the graphite deposit should be related with gabbro melting. The carbon source in the lower part was taken into the mine and then experienced regional metamorphism.
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Qin, L., Chuan, X. (2015). The Oxidation–Reduction Mineralogical Features of Graphite Deposit in Pingdu, Shandong. In: Dong, F. (eds) Proceedings of the 11th International Congress for Applied Mineralogy (ICAM). Springer Geochemistry/Mineralogy. Springer, Cham. https://doi.org/10.1007/978-3-319-13948-7_27
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DOI: https://doi.org/10.1007/978-3-319-13948-7_27
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