Mineralogical and morphological studies of gold-bearing arsenopyrite and pyrite minerals of Bakyrchik and Bolshevik gold black shale deposits (Eastern Kazakhstan)

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Bakyrchik and Bolshevik both are sediment-hosted disseminated gold deposits. They are located in Eastern Kazakhstan (4 km in distance between deposits) and include in the Western Qalba metallogenic zone. They originated in late Paleozoic age along structured line between palaeocontinents of Kazakhstan and Altai-Mongol.

The purpose of this paper is designation of typomorphic features of gold-bearing arsenopyrite and pyrite minerals, determination of chemical composition of these two sulfides minerals. The arsenopyrite and pyrite are the main objects for analytical study of gold-bearing sulfide minerals, their different textures, morphology of the crystals and aggregates. The studies of ore samples and minerals were carried out by methods of optical microscope, X-ray diffraction, X-ray fluorescence and electron microprobe analyses. The analytical study of sulphide minerals has shown that the arsenopyrite is acicular and tabular, pyrite has three varieties - globular, hexahedral and pentahedral forms in three rock samples of the carbonaceous-terrigenous formation in the deposits.

Antonov Yu.A. (2011) Gold ore mineralization of Bolshevik deposit in structural-lithological localizations (Strukturno-lotologisheskye zakonomernosty lokalizacy zolotovo orudnenya mestorozhedya Bolshevik). Dissertation, Polytechnic University of Tomsk.

Evgeny N., Alexander B., Yuri K., Konstantin K., Boris D., Marina M., and Reimar S. (2017) Permian orogenic gold deposits of Eastern Kazakhstan and Western Siberia. SEG 2017, 115.

He, Lixian, Zen, Ruelan and Lin, Liqing. (1993) Geology of Guizhou Gold Deposits. Geochemistry 15, 2, 189-192

Kovalev K.R., Kalinin Yu.A., Naumov E.A., Kolesnikova M.K., Korolyuk V.N. (2011) Gold-bearing arsenopyrite in eastern Kazakhstan gold-sulfide deposits, Russian Geology and Geophysics 52, 178–192

Kovalev K.R., Kalinin Yu.A., Naumov E.A., Myagkaya M.K. (2014) Relationship of antimony with gold mineralization in the ore districts of Eastern Kazakhstan, Russian Geology and Geophysics 55, 1170–1182

Levitan G. (2008) Sediment-hosted gold and gold-silver deposits. [In:] Gold deposits of the CIS. USA Press, 91-95

Rafaylovich S., Myzernaya M.A., D’yachkov B.A. (2011) Giant gold deposits in black shale formations: origin and similarity (Krupnye mestorozhdenya zolota v chernoslancevyz tolshah: uslovya formirovanya, pryznaky shodstva) (in Russian). Luxe Media Group Press. First edition.

Seitkan A., Simon A.T. Redfern. (2016) Processing double refractory gold-arsenic-bearing concentrates by direct reductive melting. Minerals Engineering, 98, 1-17, DOI:0.1016/j.mineng.2016.08.017

Shao, Jielian, Xu, Guofeng, Feng, Shuzhuang, Lu, Ruiying and Mei, Jianming.(1982) Study of a pyrite of a Carlin-type gold deposit in Shannxi, China (in Chinese): Acta-Petrologica. Mineralogica. et Analytica., 1, 2, 25–35.

Umarbekova Z.T., Dyusembayeva K.S., Kubashev K.T. (2017) The Bakyrchik deposit and views on the formation of the mineral deposits in black shale beds. SGEM 17, 11, 1111-1117.

Wu, Xin and others. (1989) Hydrothermal synthesis of gold-bearing arsenopyrite: Geol. 84, 2029-2032

Zhiping Li and Stephen G.Peters. (1998) Comparative Geology and Geochemistry of sedimentary-rock-hosted (Carlin type) gold deposits in the people’s Republic of China and in Nevada, USA., Open-file report 98-446

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