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Tectonic factors of impurity elements accumulation at the Shubarkol coal deposit (Kazakhstan)

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Category: Content №5 2021

Last Updated on 29 October 2021

Published on 30 November -0001

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Authors:

A.N.Kopobayeva, orcid.org/0000-0002-0601-9365, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

V.S.Portnov, orcid.org/0000-0002-4940-3156, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

S.P.Kim, orcid.org/0000-0001-7691-0826, Shubarkol Komir Joint Stock Company, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A.Amangeldykyzy, orcid.org/0000-0002-6665-8804, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

N.S.Askarova, orcid.org/0000-0002-2103-6198, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (5): 011 - 015

https://doi.org/10.33271/nvngu/2021-5/011

Abstract:

Purpose. To study the features of the paleotectonic development of the area and to construct paleotectonic reconstruction of the deposit formation to establish the nature of impurity elements accumulation in the coals and enclosing rocks of the Shubarkol deposit, as well as to increase the mineral resource potential of coals.

Methodology. 25 samples of coal and mudstone from the Shubarkol deposit were analyzed. The samples were studied by instrumental neutron- activation analysis (INAA) at the Nuclear Geochemical Laboratory of National Research Tomsk Polytechnic University.

Findings. An analysis of geological-structural and paleotectonic formation conditions of the Jurassic coal deposit was carried. The factors of formation of coal and carbon-containing rocks enriched with impurity elements and the conditions needed for its leaching and transportation to the coal seam were analyzed. It was found that the coals in individual samples have average concentrations of Ce, Ba, Sr, Sc, Zn that are higher than the clarke, and Sm, Ce, U, Cr, Yb, Ba, Sr, Nd, As, Sc, Zn, Eu, La in the composition of mudstone have average values that are higher than in coals, and higher than the clarke. It was established that one of the sources of rare-metal mineralization of coals (peat) in the Mesozoic and Cenozoic times were the rock massifs of the Kokchetau uplift in the north and northwest, the Kaptyadyr, Arganatinsk and Ulutau mountains in the west. They form the chain of the Kokchetau-North Tien Shan ancient folded structure and the Central Kazakhstan (Devonian) volcanic-plutonic belt in the east. They surround the sedimentation basin and serve as suppliers of clastic material during the coal-bearing strata formation due to tectonic processes of the Mesozoic-Cenozoic time.

Originality. The paleotectonic development of the Shubarkol deposit area during the coal-bearing formation has been reconstructed. It has been established that the Sarysu-Teniz uplift in the Permian-Triassic is separated into an independent block, to which the studied deposit is spatially and genetically related. It has been established that the distribution of elements in the coals of the Shubarkol deposit is determined by the peculiarities of metallogeny, geochemistry of the framing area and the mechanisms of the elements entering the coal seams.

Practical value. A purposeful analysis of materials for the peculiarities of high concentrations of impurity elements accumulation in coal in connection with deep fault zones at the Shubarkol deposit serves as an objective justification of the possibility of their integrated use, ensuring the development of the countrys coal industry.

Keywords: Shubarkol, geology, paleotectonics, paleogeography, coal, impurity elements

References.

1. Arbuzov, S.I., Volostnov, A.V., Yershov, V.V., Rikhvanov, L.P., Mironov, V.S., & Mashenkin, V.S. (2008). Geochemistry and metal content of coals of the Krasnoyarsk Territory: monograph. Tomsk: STT.

2. Finkelman, R.B., Dai, Sh., & French, D. (2019). The importance of minerals in coal as the hosts of chemical elements: A review. International Journal of Coal Geology, 212(2019), 103251. https://doi.org/10.1016/j.coal.2019.103251.

3. Arbuzov, S.I., Volostnov, A.V., Mashenkin, V.S., & Mezhibor,A.M. (2014). Scandium in the coals of Northern Asia (Siberia, the Russian Far East, Mongolia, Kazakhstan). Geology and Geophysics, 55(11), 1649-1660.

4. Hower, J.C., Berti, D., Hochella, Jr.M.F., Rimmer, S.M., & Taulbee, D.N. (2018). Submicron-scale mineralogy of lithotypes and the implications for trace element associations: Blue Gem coal, Knox County, Kentucky. International Journal of Coal Geology, 192, 73-82. https://doi.org/10.1016/j.coal.2018.04.006.

5. Parafilov, V.I., Amangeldikyzy, A., Portnov, V.S., Kopobayeva,A.N., & Maussymbayeva, A.D. (2020). Geochemical specialization of the Shubarkol deposit coals. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, (5), 5-10. https://doi.org/10.33271/nvngu/2020-5/005.

6. Yudovich, Ya.E., & Ketris, M.P. (2006). Valuable elements are impurities in coals: monograph. Yekaterinburg: Ural Branch of the Russian Academy of Sciences.

7. Grigorev, N.A. (2003). Average concentrations of chemical elements in rocks of the upper continental crust. Geochemistry International, 41(7), 711-718.

8. Korobkin, V.V., & Buslov, M.M. (2011). Tectonics and geodynamics of the western part of the Central Asian fold belt (paleozoids of Kazakhstan). Geology and geophysics, 52(12), 2032-2055.

9. Zhang, Ch., & Zou, H. (2013). Comparison between the Permian mafic dykes in Tarim and the western part of Central Asian Orogenic Belt (CAOB), NW China: Implications for two mantle domains of the Permian Tarim Large Igneous Province. Lithos, 174, 15-27. https://doi.org/10.1016/j.lithos.2012.11.010.

10. Yanga, G., Lia, Y., Tonga, L., Wanga, Z., Duana, F., Xua, Q., & Lia, H. (2019). An overview of oceanic island basalts in accretionary complexes and seamounts accretion in the western Central Asian Orogenic Belt. Journal of Asian Earth Sciences, 179, 385-398. https://doi.org/10.1016/j.jseaes.2019.04.011.

11. Buslov, M.M. (2011). Tectonics and geodynamics of the Central Asian fold belt: the role of Late Paleozoic large-amplitude shears. Geology and Geophysics, 52(1), 66-90.

12. Levashova, N.M., Degtyarev, K.E., & Bazhenov, M.L. (2012). Oroclinal bending of the Middle Late Paleozoic volcanic belts of Kazakhstan: paleomagnetic evidence and geological consequences. Geotektonika, (4), 42-61.

13. Dobretsov, N.L. (2011). Early Paleozoic tectonics and geodynamics of Central Asia: the role of Early Paleozoic mantle plumes. Geology and Geophysics, 52(12), 1957-1973.

14. Li, P., Sun, M., Rosenbaum, G., Yuan, Ch., Safonova, I., Cai, K., , & Zhang, Y. (2018). Geometry, kinematics and tectonic models of the Kazakhstan Orocline, Central Asian Orogenic Belt. Journal of Asian Earth Sciences, 153, 42-56. https://doi.org/10.1016/j.jseaes.2017.07.029.

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