Fine-dispersed gold at placers in Kazakhstan

The research aims to reveal and determine spatial distribution of fine-disperseв gold smaller than 10 µm in size at placers in the Republic of Kazakhstan, to define the forms of such gold occurrence and delineate the sites favorable for its accumulation. The research had three stages. At the first stage, the method of geological and geomorphological analogies determined the localization conditions at placers of small, fine and fine-dispersed gold. At the second stage, the level of geological knowledge on the selected sites was assessed. At the third stage, the exploration and appraisal of the promising sites was carried out. On the best studied site, a number of mineral associations were found, differing in conditions of formation and in forms of occurrence of fine-dispersed gold which embraces up to 76% of total quantity of the noble metal. Inclusion of fine-dispersed gold in geological exploration studies and its recovery during mining can enhance both gold potential of the subsoil and treasure supply of the Republic of Kazakhstan. 

Shautenov M. R., Tretyakov A. V., Almenov T. M., Peregudov V. V., Assylkhanova S. A. Fine-dispersed gold at placers in Kazakhstan. MIAB. Mining Inf. Anal. Bull. 2026;(9):115-136. [In Russ]. DOI: 10.25018/0236_1493_2026_9_0_115.

The article is based on the results of Project No. AR23488914 Quantitative Evaluation Technology of Fine-Dispersed Gold at Natural and Man-Made Bodies and Discovery Prospects in Kazakhstan within the framework of grant financing for 2024–2026. The study was supported by the Committee of Science of the Ministry of Science and Higher Education of the Republic of Kazakhstan. 

M.R. Shautenov¹, Cand. Sci. (Eng.), Professor, e-mail: shautenov_m@mail.ru, ORCID ID: 0000-0002-0266-3882,
A.V. Tretyakov, Dr. Sci. (Geol. Mineral.), Chief Researcher, e-mail: alextret_1210@mail.ru, ORCID ID: 0000-0001-5286-2823,
T.M. Almenov¹, Cand. Sci. (Eng.), Professor, e-mail: almen_t@mail.ru, ORCID ID: 0000-0001-9674-8598,
V.V. Peregudov, Geological Engineer, Director, LLP «KRITS-NTK», Stepnogorsk, Kazakhstan, e-mail: pereval1946@mail.ru, ORCID ID: 0000-0001-6173-1374,
S.A. Assylkhanova¹, Master of Technical Sciences, 2nd-year Doctoral Student, e-mail: asylkhanovas@mail.ru, ORCID ID: 0000-0003-2385-161X,
¹ K.I. Satpayev Kazakh National Research Technical University (Satbayev University), Almaty, Kazakhstan.

T.M. Almenov, e-mail: almen_t@mail.ru,
S.A. Assylkhanova, e-mail: asylkhanovas@mail.ru.

1. Dyachkov B. A. National Report on Science «On the State and Trends in the Development of World and Domestic Science in 2009», Vol. 6: Geology and Mineralogy. News of the National Academy of Sciences of the Republic of Kazakhstan. Series of Geology. 2011, no. 1, pp. 4—23. [In Russ].

2. Begalinov A., Peregudov V., Tretyakov A., Shautenov M., Almenov T., Bektur B., Sakhipova K. Polygenic gold mineralization in quartz-pebble formations on the Takyr-Kaljir site of the Southern Altai, East Kazakhstan Region. Mining of Mineral Deposits. 2023, vol. 17, no. 3, pp. 32—41. DOI: 10.33271/mining17.03.032. 

3. Fedotov P. K., Senchenko A. E., Fedotov K. V., Burdonov A. E. Beneficiation studies of sulfide and oxidized ores from gold deposits of the Aldan Shield. Journal of Mining Institute. 2020, vol. 242, pp. 218—227. [In Russ]. DOI: 10.31897/PMI.2020.2.218. 

4. Begalinov A. B., Shautenov M. R., Peregudov V. V., Tretyakov A. V., Kurguzkin E. V. A new type of gold mineralization in pebble formations of placers. Materialy XXVI natsional'noy nauchno-tekhnicheskoy konferentsii «Nauchnye osnovy i praktika pererabotki rud i tekhnogennogo syr'ya» [Proceedings of the XXVI National Scientific and Technical Conference «Scientific Foundations and Practice of Ore and Technogenic Raw Materials Processing»], Ekaterinburg, 2021, pp. 41—46. [In Russ].

5. Shilo N. L. Uchenie o rossypyakh. Teoriya rossypoobrazuyushchikh rudnykh formatsiy i rossypey [Doctrine of placers. Theory of placer-forming ore formations and placers], Vladivostok, Dal'nauka, 2002, 576 p. 

6. Bekenova G. K., Peregudov V. V., Levin V. L., Kanatbaev Y. T., Muratkhanov D. B. Gold and rare earth elements in enrichment products from the technogenic wastes of the Caspian Mining-Metallurgical Plant (Aktau, Kazakhstan). Complex Use of Mineral Resources. 2024, vol. 328, no. 1, pp. 76—87. DOI: 10.31643/2024/6445.09. 

7. Osovetskiy B. M. Prirodnoe nanozoloto [Natural nanogold], Perm, 2013, 176 p. 

8. Polevanov V. P. Krupnye zolotorossypnye provintsii i ikh rol' v mirovoy zolotodobyche [Large gold-placer provinces and their role in world gold mining], Mocow, 1990, 88 p. 

9. Amosov R. A., Pariy A. S., Dolbnya O. V. New data on mineral composition and beneficiation of sands from the buried Bolshoy Kuranakh placer. Gornyi Zhurnal. 2002, no. 2, pp. 33—37. [In Russ]. 

10. Zhelnin S. G. Features of placer gold mineralization in the Central Aldan region. Materials on Geology and Mineral Resources of the Yakut ASSR. 1970, issue XVII, pp. 80—87. [In Russ].

11. Patyk-Kara N. G. Mnogoplastovye rossypi prirazlomnykh vpadin. Rossypnye mestorozhdeniya Rossii i stran SNG [Multilayer placers of fault-bounded depressions. Placer Deposits of Russia and CIS Countries], Mocow, 1997, pp. 92—98. 

12. Matveeva E. V. Allyuvial'nye rossypi dolin-grabenov s melkim i tonkim zolotom. Rossypnye mestorozhdeniya Rossii i SNG [Alluvial placers of graben valleys with fine and thin gold. Placer Deposits of Russia and CIS Countries], Mocow, 1997, pp. 45—49. 

13. Erofeev V. S. Geologicheskaya istoriya yuzhnoy periferii Altaya v paleogene i neogene [Geological history of the southern periphery of Altai in the paleogene and neogene], Alma-Ata, 1969, 165 p.

14. Tretyakov A. V., Peregudov V. V., Gilev Yu. N., Mamonov E. P. Forms of gold occurrence in placer sands of the Shalkudysu River basin (Southern Kazakhstan). Geology and Subsoil Protection. 2011, no. 1(38), pp. 35—39. [In Russ].

15. Junussov M., Kembayev M. K., Baisalova A., Kokkuzova M., Mamanov Ye., Mekenbek G., Cherkeshova S. Geochemical controls on invisible gold fixation in arsenian pyrite: Evidence from the Western Mecsek and Bakyrchik deposits. Acta Geochimica, 2026. DOI: 10.1007/s11631-026-00864-4. 

16. Junussov M., Mustapayeva S. Preliminary XRF analysis of coal ash from Jurassic and Carboniferous coals at five Kazakh mines: Industrial and environmental comparisons. Applied Sciences. 2024, vol. 14, no. 22, article 10586. DOI: 10.3390/app142210586. 

17. Kovalev K. R., Kalinin Y. A., Naumov E. A., Myagkaya M. K. Relationship of antimony with gold mineralization in the ore districts of Eastern Kazakhstan. Russian Geology and Geophysics. 2014, vol. 55, no. 10, pp. 1170—1182. DOI: 10.1016/j.rgg.2014.09.003. 

18. Liu Y. H., Ng W. S., Chen M. Optimization of arsenic fixation in the pressure oxidation of arsenopyrite using response surface methodology. Mineral Processing and Extractive Metallurgy Review. 2024, vol. 45, no. 2, pp. 101—113. DOI: 10.1080/08827508.2022.2127703. 

19. Tolstykh N., Bortnikov N., Zhukova I., Stepanov A., Palyanova G., Shapovalova M., Zhao K. D. Trace elements in pyrite from Au—Ag epithermal deposits of Kamchatka, Russia: Comparison with geochemical features of mineral systems. Journal of Geochemical Exploration. 2025, vol. 275, article 107774. DOI: 10.1016/j.gexplo.2025.107774. 

20. Behera R. C., Singh S., Barla A., Kumar K. S. V., Reddy N. R., Dash M. Invisible gold mineralization within the Vempalle Dolostone, Joolakalva Area, Cuddapah Basin, Southern India: Insights from in-situ and whole-rock geochemistry. Lithos. 2026, vol. 528—529, article 108462. DOI: 10.1016/j.lithos.2026.108462. 

21. Kalinin Yu. A., Kovalev K. R., Naumov E. A., Myagkaya M. K. Antimony mineralization at gold ore deposits of Eastern Kazakhstan. Rudoobrazuyushchie protsessy: ot geneticheskikh kontseptsiy k prognozu i otkrytiyu novykh rudnykh provintsiy i mestorozhdeniy [Ore-forming processes: From genetic concepts to forecasting and discovery of new ore provinces and deposits], Moscow, 2013, pp. 39—40.

22. Danilchenko D. G., Sekisov G. V. Deep-seated placers of the Far Eastern region of Russia as modern objects of open-pit mining. Trudy IGD DVO RAN [Proceedings of the Mining Institute of the Far Eastern Branch of RAS], Khabarovsk, 2010, pp. 47—53. [In Russ].