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Название Srednekanskaya dike gold deposit in the northeast of Russia
DOI 10.17580/or.2021.06.03
Автор Nikitenko E. M., Mikhalitsyna T. I., Fomina M. I., Sotskaya O. T.
Информация об авторе

LLC «Vidny» (Magadan, Russia):

Nikitenko E. M., Deputy Director for Science, Candidate of Engineering Sciences


N. A. Shilo North-East Interdisciplinary Scientific Research Institute, FEB RAS (Magadan, Russia):
Mikhalitsyna T. I., Senior Researcher, Candidate of Geological and Mineralogical Sciences, tim_66@mail.ru
Fomina M. I., Researcher, Candidate of Geological and Mineralogical Sciences
Sotskaya O. T., Researcher, Candidate of Geological and Mineralogical Sciences


This paper presents the results of a comprehensive material composition study of the host rocks and ores of the Srednekanskaya dike deposit. It has been found that the ores had been formed in several stages, namely, the metamorphogenic, hydrothermal-metasomatic (productive), and hypergene stages. At the same time, a decisive role in the formation of the gold mineralization was played by structural controls that are present in the form of breccias and hydrothermalmetasomatic alterations of rocks with gold deposition in the weakened zones. The prevailing features of gold mineralization of the Srednekanskaya dike are as follows: concentration of the bulk of gold in the vein material; predominant coarse gold occurrence as massive plates, lumps, and open-worked films; filling of interstitial openings in quartz, arsenopyrite, and pyrite with fine gold; native gold in quartz veins and quartz-carbonate-feldspar breccias localized in microdiorites confined to both arsenopyrite and pyrite and native gold associated with diorite-porphyry confined only to arsenopyrite, as supported by the geochemical data. Process studies have been carried out and the efficiency of Srednekanskaya dike ore processing by gravity methods has been established, with the gold recovery reaching 90 %. A recommended process flow sheet is presented.

Ключевые слова Dike, ore, native gold, gold fineness, micromineralogy, electron microscopy, geochemical association, process flow sheet, gravity concentration
Библиографический список

1. Tombe S. P., Richards J. P., Greig C. J., Board W. S., Creaser R. A., Muehlenbachs K. A., Larson P. B., DuFrane S. A, Spell T. Origin of the high-grade Early Jurassic Brucejack epithermal Au–Ag deposits, Sulphurets Mining Camp, northwestern British Columbia. Ore Geology Reviews. 2018. Vol. 95. pp. 480–517.
2. Yongtao Z. China's gold mining industry: a story of growth. URL: https://www.gold.org/goldhub/research/goldinvestor/gold-investor-october-2018/chinas-gold-miningindustry-a-story-of-growth (accessed: 30.11.2021).
3. Pollock M. V., Spry P. G., Tott K. A., Koenig A., Both R. A., Ogierman J. The origin of the sediment-hosted Kanmantoo Cu-Au deposit, South Australia: Mineralogical considerations. Ore Geology Reviews. 2018. Vol. 95. pp. 94–117.
4. Voudouris P., Mavrogonatos C., Spry P., Baker T., Melfos V., Klemd R., Haase K., Repstock A., Djiba A., Bismayer U., Tarantola A., Scheffer C., Moritz R., Kouzmanov K., Alfieris D., Papavassiliou K., Schaarschmidt A., Galanopoulos E., Galanos E., Kołodziejczyk J., Stergiou S., Melfou M. Porphyry and epithermal deposits in Greece: An overview, new discoveries, and mineralogical constraints on their genesis. Ore Geology Reviews. 2019. Vol. 107. pp. 654–691.
5. Shakhtyrov V. G. Shear structural ensembles and gold mineralization of the Yano-Kolyma folded system: abstract of dis. for the degree of Doctor of Geological and Mineralogical Sciences. 2010. 51 p.
6. Yakovleva K. Yu., Fridovsky V. Yu., Vernikovskaya A. E. Mesozoic (151-145 Ma) dike magmatism of the central part of the Yano-Kolyma gold-bearing belt, North-East of Russia. New in the knowledge of ore formation processes. Works of young scientists dedicated to the 90th anniversary of IGEM RAS. Moscow: IGEM RAS, 2020. pp. 180–182.
7. Akinin V. V., Prokopiev A. V., Toro J., Miller E. L., Wooden J., Goryachev N. A., Alshevsky A. V., Bakharev A. G., Trunilina V. A. U–Pb SHRIMP ages of granitoides from the main batholith belt (North-East Asia). Doklady Akademii Nauk. 2009. Vol. 426, No. 2. pp. 216–221.
8. Volkov A. V., Prokof'ev V. Yu., Sidorov A. A., Egorov V. N., Goryachev N. A., Biryukov A. V. Gold deposits in dikes of the Yana-Kolyma belt. Geologiya Rudnykh Mestorozhdeniy. 2008. Vol. 50, No. 4. pp. 311–337.
9. Stepanov S. Y., Shagalov E. S., Palamarchuk R. S., Kutyrev A. V., Sharpenok L. N., Nabiullin F. M., Troshkina A. N. Mineralogical and geochemical evidence for granite metasomatism in dikes in the north of the Berezovskoe ore field (Middle Urals). Geologiya i Geofizika. 2020. Vol. 61, No. 8. pp. 995–1018.
10. Nikitenko E. M., Mikhalitsyna T. I., Fomina M. I., Sotskaya O. T. Features of gold mineralization of the Srednekanskaya dyke (North-East of Russia). Rock, mineral and ore formation: achievements and prospects of research. Proc. for the 90th anniversary of IGEM RAS. Moscow: IGEM RAS, 2020. pp. 878–881.
11. Gamyanin G. N. Mineralogical and genetic aspects of gold mineralization of Verkhoyano-Kolyma mesozoids. Moscow: GEOS, 2001. 292 p.
12. Tyukova E. E. Composition and parageneses of arsenopyrite in the reconstruction of the geological history of deposits (Verkhne-Kolymskiy region). Problems of ore regions of the North-East of Russia. Magadan: NEISRI FEB RAS, 2005. pp. 125–156.
13. Volkov A. V., Sidorov A. A. Forecast-exploration model of gold deposits associated with granitoid intrusions of the Russian Arctic zone. Arktika: Ekologiya i Ekonomika. 2018. No. 3. pp. 84–99.
14. Taylor S. R. Continental crust: its composition and evolution. Moscow: Mir, 1988. 384 p.
15. Hu Z., Gao S. Upper crustal abundances of trace elements: A revision and update. Chemical Geology. 2008. Vol. 253. pp. 205–221.
16. Jones В., Manning D. A. C. Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones. Chemical Geology. 1994. Vol. 111, Iss. 1–4. pp. 111–129.
17. Kun L., Ruidong Y., Wenyong Ch., Rui L., Ping T. Trace element and REE geochemistry of the Zhewang gold deposit, southeastern Guizhou Province, China. Chinese Journal of Geochemistry. 2014. No. 33. pp. 109–118.
18. Romän N., Reich M., Leisen M., Morata D., Barra F., Deditius A. P. Geochemical and micro-textural fingerprints of boiling in pyrite. Geochimica et Cosmochimica Acta. 2019. Vol. 246. pp. 60–85.
19. Matushkina A. N. Development and testing of processes for the preparation and beneficiation of products containing finely dispersed gold: abstract of dis. for the degree of Candidate of Engineering Sciences. Ekaterinburg, 2017. 21 p.
20. Merinov N. F. Gravitational beneficiation methods. Ekaterinburg: USMU, 2005. 204 p.

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