Articles | Volume 34, issue 1
https://doi.org/10.5194/ejm-34-131-2022
https://doi.org/10.5194/ejm-34-131-2022
Research article
 | 
16 Feb 2022
Research article |  | 16 Feb 2022

Vanadium carbides in shungite

Vladimir V. Kovalevski and Igor A. Moshnikov

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Cited articles

Bandow, S. and Saito, Y.: Encapsulation of ZrC and V4C3 in graphite nanoballs via arc burning of metal carbides/graphite composites, Jpn. J. Appl. Phys. 32, L1677–L1680, 1993. 
Baumgartner, R. J., Van Kranendonk, M. J., Fiorentini, M. L., Pagès, A., Wacey, D., Kong, C., Saunders, M., and Ryan, C.: Formation of micro-spherulitic barite in association with organic matter within sulfidized stromatolites of the 3.48 billion-year-old Dresser Formation, Pilbara Craton, Geobiology, 18, 415–425, https://doi.org/10.1111/gbi.12392, 2020. 
Beyssac, O., Goffé, B., Chopin, C., and Rouzaud, J.-N.: Raman spectra of carbonaceous material in metasediments: a new geothermometer, J. Metamorph. Geol., 20, 859–871, 2002. 
Beyssac, O., Goffe, B., Petitet, J.-P., Froigneux, E., Moreau, M., and Rouzaud, J.-N.: On the characterization of disordered and heterogeneous carbonaceous materials by Raman spectroscopy, Spectrochim. Acta A, 59, 2267–2276, https://doi.org/10.1016/S1386-1425(03)00070-2, 2003. 
Bielowicz, B.: Changes in the spontaneous combustion tendency of humic coals according to their petrographic composition and physico-chemical properties, Gospod. Surowcami. Min., 36, 197–218, https://doi.org/10.24425/gsm.2020.132561, 2020. 
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Short summary
Vanadium carbides in shungite are shown to be present in several forms, which reflects the distinctive conditions of their formation. An ordered carbon film revealed on the vanadium carbide particles could protect the particles from transformations for a long time. The parageneses of vanadium carbide and roscoelite occur, indicating that roscoelite in shungite rocks may be a secondary mineral formed upon vanadium carbide decomposition.