Features of petrologic composition of Pb-Zn ore of the Dyusembay Central deposit (Central Kazakhstan)
https://doi.org/10.52349/0869-7892_2022_92_92-104
Abstract
Results of laboratory studies of Pb-Zn ore from the Dyusembay Central deposit, Central Kazakhstan, are discussed. Petrologic composition was studied using up-to-date methods of process mineralogy, including electron microscopic mineralogical studies. Chemical, X-ray spectral, sieve and phase analyzes and fire assay were performed on 10 small technological samples from various parts of the deposit. Investigations of the petrological composition performed to date showed that the ore of the Dyusembay deposit is characterized by complex mineralogical and chemical compositions and belongs to the Pb-Zn type of ore with a preponderance of Zn over Pb. It is concluded that Pb and Zn are the main valuable components in the ore of the deposit with average contents of Zn 2,6 % and Pb 1,5 %. Most of these metals are part of sulfides. The sulfides are dominated by sphalerite; the galena mass fraction is by an order lower. Iron sulfides (pyrite, pyrrhotite, marcasite) vary within a small range. Silver was found in the ore zone, with an average content in the ore of 10,5 g/t, and in ore intersections it reaches 2,7 kg/t. Other non-ferrous metals, as well as arsenic and antimony, at the current stage of the deposit study, are not of economic interest. Currently, the deposit is explored in detail and then the composition and technological features of the ores will be clarified.
Keywords
deposit,
prospect,
Dyusembay,
lead,
zinc,
organic carbon,
content,
ore,
mineral composition,
SEDEX-type deposits
About the Authors
G. Zh. Nurzhanov
TOO Kazakhmys Barlau
Kazakhstan
Kazakhstan
Nurzhanov Galym Zhumabaevich – Director General
52а Mangilik El, Astana, 010000
P. A. Nitsenko
TOO Kazakhmys Barlau
Kazakhstan
Kazakhstan
Nitsenko Pavel Aleksandrovich – Chief Geologist
52а Mangilik El, Astana, 010000
References
1. Otchet po teme 814: «Izuchenie veshhestvennogo sostava ishodnoj svincovo-cinkovoj rudy uchastka Djusembaj». Karaganda, TOO «Centrgeolanalit», LTI, 2020.
2. Otchet po laboratornym issledovanijam na obogatimost’ proby rudy mestorozhdenija «Djusembaj». Altaj, TOO «KAZCINK», OF GOK «Altaj», 2020.
3. Otchet «Predvaritel’nye laboratorno-tehnologicheskie issledovanija materiala proby DU33-01T mestorozhdenija Djusembaj». Irkutsk, Institut TOMS, 2020.
4. Kogaj S. G., Iskakov K. I. Poiskovye geologo-geofizicheskie raboty m-ba 1 : 10 000 v drevnih tolshhah Central’noj chasti Karsakpajskogo podnjatija. Otchet Karsakpajskoj partii za 1989–1996. Zhezkazgan, 1996.
5. Muhanova A. A. Primenenie modificirovannogo sobiratelja pari flotacii svincovo-cinkovyh rud mestorozhdenija Shalkija. A. A. Muhanova, N. K. Tusupbaev, L. V. Semushkina, D. K. Turysbekov. Kompleksnoe ispol’zovanie mineral’nogo syr’ja. 2015, no. 3, 15 p.
6. Judovich Ja. Je., Ketris M. P. Geohimija chernyh slancev. Leningrad, Nauka, 1988, 12 p.
Review
For citations:
Nurzhanov G.Zh., Nitsenko P.A. Features of petrologic composition of Pb-Zn ore of the Dyusembay Central deposit (Central Kazakhstan). Regional Geology and Metallogeny. 2022;(92):92-104. (In Russ.) https://doi.org/10.52349/0869-7892_2022_92_92-104
Views:
28
Email this article 