Features of weathered layers at copper deposits

Copper deposits and mineralization zones are widely spread in the crust, have various origin and occur in different geological and tectonic environments. Prospecting and exploration of such deposits and their long-term and extensive mining are one of the toppriority objectives of the national mining industry. It is a typical feature of such deposit that there are overlaid with shallow weathered layers. The latter possess different properties as their mother substrates are represented by various rocks (sedimentary, magmatic, metamorphic) in Russia, and because the areas of the mineral deposits feature different geomorphology. For this reason, Russia is currently one of the most interesting test ground for studying weathered layers of different types. Examination of the weathering process is a challenging problem. Therefore, it is important to correctly determine the type and profile of the weathered layer at the stage of geological exploration, as well as to find changeability of geotechnical conditions during accessing mineral reserves with a view to predicting stability of sidewalls or pitwall in underground and surface mines later on.

Keywords: weathering, weathered layer, mother rock, geotechnical zonality, weathered layer thickness, weathering profile, physical and mechanical properties of rocks.
For citation:

Abaturova I. V., Bobina T. S. Features of weathered layers at copper deposits. MIAB. Mining Inf. Anal. Bull. 2021;(11-1):146—161. [In Russ]. DOI: 10.25018/0236_1493_2021_111_0_146.



The study was prepared in accordance with the state assignment for the implementation of research work for the Federal State Budgetary Educational Institution of Higher Education «Ural State Mining University» No. 075-03-2021-303 dated December 29, 2020.

Issue number: 11
Year: 2021
Page number: 146-161
ISBN: 0236-1493
UDK: 551.3.053+553.068.36
DOI: 10.25018/0236_1493_2021_111_0_146
Article receipt date: 25.05.2021
Date of review receipt: 23.09.2021
Date of the editorial board′s decision on the article′s publishing: 10.10.2021
About authors:

Abaturova I. V.1, Dr. Sci. (Geol. Mineral.), е-mail: gingeo@mail.ru;
Bobina T. S.1, Senior Lecturer, е-mail: tanyashka1993@mail.ru;
1 Ural State Mining University, Yekaterinburg, Russia.


For contacts:

1. Kontar E. S. The geological-industrial types of the Cu, Zn, Pb deposits in the Urals (geological conditions of setting, history of the formation, the prospects). Ekaterinburg, 2013,199 p. [In Russ]

2. Beskin S. M., Alekseeva A. K. Copper-porphyry mineralization of Russia: promising regions and areas. Moscow, Scientific world, 2016, 78 р. ISBN 978—5-91522—427—7 [In Russ]

3. Momeni A. A., Khanlari G. R., Heidari M., Sepahi A. A., Bazvand E. New engineering geological weathering classifications for granitoid rocks. Engineering Geology. 2015. V. 185. P. 43—51.

4. Bucher, K., Stober, I. & Müller-Sigmund, H. Сrusts of weathering of the peridotite. Contrib Mineral Petrol 169, 52 (2015)

5. Patel А. Classification of Weathering in Rocks and Its Engineering Implications. Civil Eng Res J. 2017; 2(3): 555589 DOI: 10.19080/CERJ.2017.02.555589

6. Irfan T. Y. Mineralogy and fabric characterization and classification of granitic rocks in Hong Kong: report no. 41. Hong Kong: Geotechnical Engineering office, Civil Engineering Department, the Government of Hong Kong, 1996. 158 p.

7. YArg L. A. Engineering-geological study of the weathering process and weathering crust. Moscow, Nedra, 1974. [In Russ]

8. Abaturova I. V., Afanasiadi E. I., Kosterova T. K. Features of studying the engineering and geological conditions of the Svetlinsky deposit. Sverdlovsk, 1987. p.72. [In Russ]

9. Vikent’ev I. V. Conditions of formation and metamorphism of pyrite deposits of the Urals. Ekaterinburg, Zavaritsky Institute of Geology and Geochemistry Pubbl, 2013, pp. 21—25. [In Russ]

10. Bobina, T. S., Abaturova, I. V. Structural features of ore deposits weathering. In: Engineering and Mining Geophysics 2019 15th Conference and Exhibition Engineering and Mining Geophysics 2019. Gelendzhik, 2019, pp. 336—347. [In Russ]. DOI: 10.3997/2214— 4609.201901725

11. Farkas, O., Siegesmund, S., Licha, T. et al. Geochemical and mineralogical composition of black weathering crusts on limestones from seven different European countries. Environ Earth Sci 77, 211 (2018)

12. Ginzburg I. I. Geochemistry and geology of the ancient weathering crust in the Urals. Proceedings of the Institute of Geological Sciences, Series of the Ural Complex Expedition of the Academy of Sciences of the USSR Academy of Sciences. Moscow, The Acad. Sciences of the USSR, 1947, Issue 31, p. 135. [In Russ]

13. Kone Amben’yan Nivojo Matil’da. Structure, composition and properties of laterite weathering crusts of the Leono-Liberian massif and their use in road construction. PhD thesis, Moscow, RGGRU, 2012, p. 26. [In Russ]

14. Kryukov V. G., Lavrik N. A., Litvinova N. M., Stepanova V. F. (2019). Typomorphic minerals oxidation zone of gold-copper porphyry ore of the Malmyzh deposit (Svoboda). Georesursy = Georesources, 21(3), pp. 91—98. DOI: https://doi.org/10.18599/grs.2019.3.91— 98

15. Abaturova I. V., Bobina T. S. The risk of deformations in the sides of quarries, folded weathering crusts. Perm’, 2019, Educ. 21, pp. 382—387. [In Russ]

16. SHvec V. B., Kul’chitskij G. B., Syrokomskij YU. V. Characterization of various weathering zones and quantitative assessment of their properties for construction purposes. Problems of engineering geology. Moscow, MGU, 1970, pp.164—167. [In Russ]

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