Voronezh, Moscow, Russian Federation
employee from 01.01.1998 until now
Moscow, Moscow, Russian Federation
UDC 54
UDC 55
UDC 550.34
UDC 550.383
CSCSTI 37.01
CSCSTI 37.15
CSCSTI 37.25
CSCSTI 37.31
CSCSTI 38.01
CSCSTI 36.00
CSCSTI 37.00
CSCSTI 38.00
CSCSTI 39.00
CSCSTI 52.00
Russian Classification of Professions by Education 05.00.00
Russian Library and Bibliographic Classification 26
Russian Trade and Bibliographic Classification 63
BISAC SCI SCIENCE
The paper presents the results of the first comprehensive studies of the geological and geochemical features of bauxite formation in the crust of the weathering rocks of the Proterozoic Kursk series within the Shemraevsky deposit of rich iron ores. The use of a complex of modern methods (X-ray phase analysis, X-ray fluorescence analysis, ICP-MS mass spectrometry, petrographic and mineralogical studies) made it possible to establish that bauxite formation occurred in phyllite shales under conditions of moderate lateritization, accompanied by intensive removal of silica. A comparative analysis of geochemical data and the construction of discriminatory diagrams revealed the multi-stage nature of the bauxite formation process. The accumulation of alumina was carried out in situ, due to the high permeability of the transformed rocks of the Kursk series and the effects of meteoric waters. An inverse correlation has been established between the content of clay minerals and the intensity of lateritization, which indicates their formation at various time stages. The revealed manifestation is classified as a ferriallite weathering crust. The discovery of bauxite-bearing manifestations in this part of the Kursk Magnetic anomaly (KMA) indicates a high potential for the identification of new bauxite deposits in the south of the KMA.
boehmite, gibbsite, weathering crust, Kursk series, Shemraevskoye deposit, Belgorod ore region, lateritization, ferriallite crust
1. Aleva G. J. J. Laterites. Concepts, Geology, Morphology and Chemistry. — Wageningen : ISRIC, 1994. — 169 p.
2. Beneslavsky S. I. Mineralogy of bauxites. — M. : Nedra, 1974. — 168 p. — (In Russian).
3. Bortnikov N. S., Volkov A. V., Galyamov A. L., et al. Mineral resources of high-tech metals in Russia: State of the art and outlook // Geology of Ore Deposits. — 2016. — Vol. 58, no. 2. — P. 83–103. — https://doi.org/10.1134/s10757 01516020021
4. Braun J., Mercier J., Guillocheau F., et al. A simple model for regolith formation by chemical weathering // Journal of Geophysical Research: Earth Surface. — 2016. — Vol. 121, no. 11. — P. 2140–2171. — https://doi.org/10.1002/2016jf003914
5. Burmin Yu. A. Geology of metal-bearing weathering crusts. — M. : Nedra, 1984. — 237 p. — (In Russian).
6. Liu J., Xiong K., Zhang H., et al. The effect of alumina as an interfacial layer on the reactivity of Al/PTFE energetic composites // Journal of Materials Research and Technology. — 2023. — Vol. 24. — P. 3033–3047. — https://doi.org/10.1016/j.jmrt.2023.03.223
7. Nesbitt H. W. and Young G. M. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites // Nature. — 1982. — Vol. 299. — P. 715–717. — https://doi.org/10.1038/299715a0
8. Nikitina A. P. and Alekseeva Z. I. Vislovskoe and Olkhovatka deposits of lateritic bauxites of staged formation (Voronezh anteclise) // Genetic classification and types of bauxite deposits of the USSR. — M. : Nauka, 1974. — P. 22–45. — (In Russian).
9. Nikulin I. I. Rich iron ores of the Kursk Magnetic Anomaly. — M. : KDU, 2024. — 408 p. — (In Russian).
10. Nikulin I. I., Starostin V. I. and Samsonov A. A. Pre-Visean Bauxites and Iron-Aluminum Ores Deposit of the KMA and Prospects for Development // Geology of Ore Deposits. — 2021. — Vol. 63, no. 4. — P. 368–381. — https://doi.org/10.1134/s107570152104005x
11. Nyamsari D. G., Yalçin M. G. and Wolfson I. Alteration, chemical processes, and parent rocks of Haléo-Danielle Plateau bauxite, Adamawa-Cameroon // Lithology and Mineral Resources. — 2020. — Vol. 55, no. 3. — P. 231–243. — https://doi.org/10.1134/S0024490220030049
12. Özlü N. Trace-element content of ?Karst Bauxites? and their parent rocks in the mediterranean belt // Mineralium Deposita. — 1983. — Vol. 18, no. 3. — P. 469–476. — https://doi.org/10.1007/bf00204491
13. Patino L. C., Velbel M. A., Price J. R., et al. Trace element mobility during spheroidal weathering of basalts and andesites in Hawaii and Guatemala // Chemical Geology. — 2003. — Vol. 202, no. 3/4. — P. 343–364. — https://doi.org/10.1016/j.chemgeo.2003.01.002
14. Price J. R. and Velbel M. A. Chemical weathering indices applied to weathering profiles developed on heterogeneous felsic metamorphic parent rocks // Chemical Geology. — 2003. — Vol. 202, no. 3/4. — P. 397–416. — https://doi.org/10.1016/j.chemgeo.2002.11.001
15. Rudnick R. L. and Gao S. Composition of the Continental Crust // Treatise on Geochemistry. — Elsevier, 2003. — P. 1–64. — https://doi.org/10.1016/b0-08-043751-6/03016-4
16. Savko K. A. and Poskryakova M. V. Mineralogy, phase relations, and metamorphic conditions of banded iron formation (BIF) rocks of the Shemrayevskoye deposits, Kursk Magnetic Anomaly // Proceedings of Voronezh State University. Series: Geology. — 2004. — No. 1. — P. 68–84. — (In Russian).
17. Schellmann W. Eine neue Lateritdefinition // Geologisches Jahrbuch (Reihe D). — 1982. — Vol. 58. — P. 31–47.
18. Schroll E. and Sauer D. Beitrag zur Geochemie von Titan, Chrom, Nikel, Cobalt, Vanadium und Molibdan in Bauxitischen gestermen und problem der stofflichen herkunft des Aluminiums // Travaux du ICSOBA. — 1968. — Vol. 5. — P. 83– 96.
19. Shaw D. M. Interprétation Géochemique des Éléments en Traces dans les Roches Cristallines. — Paris : Masson, 1964. — 241 p.
20. Sirotin V. I. Mineralogical types and formation conditions of Belgorod bauxites // Genesis of bauxites. — M. : Nauka, 1966. — P. 130–141. — (In Russian).
21. Tardy Y. and Nahon D. Geochemistry of laterites, stability of Al-goethite, Al-hematite, and Fe (super 3+) -kaolinite in bauxites and ferricretes; an approach to the mechanism of concretion formation // American Journal of Science. — 1985. — Vol. 285, no. 10. — P. 865–903. — https://doi.org/10.2475/ajs.285.10.865
22. Yesavage Y., Fantle M. S., Vervoort J., et al. Fe cycling in the Shale Hills Critical Zone Observatory, Pennsylvania: An analysis of biogeochemical weathering and Fe isotope fractionation // Geochimica et Cosmochimica Acta. — 2012. — Vol. 99. — P. 18–38. — https://doi.org/10.1016/j.gca.2012.09.029
