Geochemical peculiarities of the Petropavlovsk gold deposit, Polar Ural

The Petropavlovsk gold deposit belongs to the hydrothermal gold–quartz–sulfide formations. The principal metallic minerals are gold and pyrite; the latter is localized in the hydrothermally altered rocks (quartz–calcite–sericitic metasomatic ore). Chalcopyrite, sphalerite, magnetite, fahlore, etc. are encountered less often. This research aims to reveal geochemical peculiarities of the Petropavlovsk deposit, to analyze geochemical specialization and the behavior of rocks and elements with increasing depth, and to correlate Au with other elements and with pyritization intensity. The analysis data were processed in Statistica 6 and Excel, grouped and subjected to variance analysis. The research findings based on almost 1500 observations show that the contents of gold and silver are the highest in beresite, metasomatic ore and tuffs. The gold and silver contents of quartz lodes are lower. The connection is revealed between the elements in different composition and genesis rocks, lodes and skarns. The implemented interpretation allowed distinguishing a number of groups of elements with similar behavior, and some important inferences for understanding geochemistry of the Petropavlovsk deposit were made. When analyzing the resultant graphs, the authors arrived to the conclusion on the evident connection between the gold content and pyritization intensity as the highest contents of gold were observed in rock containing more than 40 % of sulfides in their composition. In order to analyze the vertical zonality of gold and other elements, the graphs of their behavior with depth were plotted. The gold content is unvaried with depth, which is important for the prediction of gold mineralization.

Keywords: gold deposit, geochemical peculiarities, geochemical specialization, pyritization, correlation analysis, variance analysis, contents of elements, vertical zonality.
For citation:

Karelina E. V., Androsova N. K., Morozova T. P., Pavlinova N. V., Markov V. E. Geochemical peculiarities of the Petropavlovsk gold deposit, Polar Ural. MIAB. Mining Inf. Anal. Bull. 2020;(4):105-116. [In Russ]. DOI: 10.25018/0236-1493-2020-4-0-105-116.

Acknowledgements:
Issue number: 4
Year: 2020
Page number: 105-116
ISBN: 0236-1493
UDK: 55.553.2.:553.3/.9
DOI: 10.25018/0236-1493-2020-4-0-105-116
Article receipt date: 28.01.2020
Date of review receipt: 12.02.2020
Date of the editorial board′s decision on the article′s publishing: 20.03.2020
About authors:

E.V. Karelina1, Cand. Sci. (Geol. Mineral.), Assistant Professor, e-mail: elkarelina@mail.ru,
N.K. Androsova2, Cand. Sci. (Geol. Mineral.), Assistant Professor, e-mail: androsova_n@mail.ru,
T.P. Morozova2, Cand. Sci. (Geol. Mineral.), Assistant Professor, e-mail: olivin99@mail.ru,
N.V. Pavlinova2, Cand. Sci. (Geol. Mineral.), Assistant Professor, e-mail: pavlinova n@mail.ru,
V.E. Markov1, Senior Lecturer, e-mail: vemarkov@yandex.ru,
1 Peoples’ Friendship University of Russia (RUDN University), 113093, Moscow, Russia,
2 Moscow Polytechnic University, 107023, Moscow, Russia.

 

For contacts:

N.K. Androsova, e-mail: androsova_n@mail.ru

Bibliography:

1. Udoratina O. V., Kuznetsov N. B. Sobsky plagiogranite complex of the Polar Urals. Byulleten' Moskovskogo obshchestva ispytateley prirody. Otdel geologicheskiy. 2007. Vol. 82, no 3, pp. 49—59. [In Russ].

2. Plotinskaya O.Yu., Grabezhev A. I., Tessalina S., Seltmann R., Groznova E. O., Abramov S. S. Porphyry deposits of the Urals: geological framework and metallogeny. Ore Geology Reviews. 2017, vol. 85, pp. 153–173. http:.dx.doi.org/10.1016/j.oregeorev.2016.07.002.

3. Sun W., Li H., Hu Y.-B., Zhang C.-C., Sun S.-J., Zhang L.-P., Li C.-Y., Zartman R. E., Huang R.-F., Ding X., Ling M.-X. Porphyry deposits and oxidized magmas. Ore Geology Reviews. 2015. Vol. 65. No P1. Pp. 97–131.

4. Kuznetsov N. B., Romanyuk T. V. Paleozoic evolution of the Polar Urals: The Voikarsky basin with an oceanic crust has existed for at least 65 Ma. Byulleten' Moskovskogo obshchestva ispytateley prirody. Otdel geologicheskiy. 2014. Vol. 89, no 5, pp. 56—70. [In Russ].

5. Queiroga G., Martins M., Kulikova K. et al. First U-Pb dating of a plagiogranite from Voykar massif, Polar Urals, Russia. VII SSAGI. South American Symposium on Isotope Geology. Brasilia, 25–28 July 2010. Pp. 397–400.

6. Kuznetsov N. B., Soboleva A.A., Udoratina O. V., Hertseva M. V., Andreichev V. L. Preordovician tectonic evolution and volcano-plutonic associations of the Timanides and northern Pre-Uralides, northeast part of the East European Craton. Gondwana Research. 2007. Vol. 12. Pp. 305–323. DOI: 10.1016/j.gr.2006.10.021.

7. Kuznetsov N. B., Soboleva A.A., Udoratina O. V., Miller E. L., Gehrels G., Romanyuk T. V. First U-Pb datings of detrital zircons from middle and upper paleozoic sandstones of the Polar Urals: Testing the regional tectonic models. Doklady Earth Sciences. 2013. Vol. 451. No 1. Pp. 692—697.

8. Vikent'ev I. Mineralogy and formation conditions of the Urals volcanogenic massive sulphide deposits. Mineralogicheskiy sbornik. 2012, no 62. Issue 2, pp. 47—58. [In Russ].

9. Mansurov R. Kh. Geologo-strukturnye usloviya lokalizatsii Petropavlovskogo zolotorudnogo mestorozhdeniya: Polyarnyy Ural [Geological and structural conditions for the localization of the Petropavlovsk gold ore deposit (Polyarny Ural)], Candidate’s thesis, Moscow, 2013, 161 p.

10. Mansurov R. Kh. Structure of mineralized zones of the Petropavlovsk gold-porphyry deposit (Polyarny Ural). Vestnik Permskogo universiteta. Geologiya. 2016. Issue 4 (33), pp. 49—69. [In Russ].

11. Androsova N. K., Moralev V. M., Sheremet O. G. Assessment of the reliability of forecasting endogenous mineralization based on cosmogeological information. Issledovanie Zemli iz kosmosa. 1992, no 4, pp. 82—92. [In Russ].

12. Morozova T. P., Androsova N. K., Karelina E. V. Using the Surfer program to study the search lithochemical signs of porphyry copper mineralization. Innovatsii i investitsii. 2019, no 5, pp. 158—160. [In Russ].

13. Trofimov A. P., Funtikov B. V., Lyuchkin V.A. Predictive-geochemical assessment of gold content of the Novogodnensky prospective area in the Polar Urals. Rudy i metally. 2006, no 5, pp. 13—18. [In Russ].

14. Ivanova J., Tykova E., Abramova V., Kovalchuk E., Vikentyev I. Ores mineralogy and first data about «invisible» form of Au in pyrite of the Novogodnee —Monto deposit (the Polar Urals, Russia). 13th Biennial Meeting of Socirty for Geology Applied to Mineral Deposit. Nancy, France. 2015. Vol. 1. Pp. 121–125.

15. Franchini M., Mc Farlane C., Maydagan L., Reich M., Lentz D. R., Meinert L., Bouhier V. Trace metals in pyrite and marcasite from the Agua Rica porphyry-high sulfidation epithermal deposit, Catamarca, Argentina: Textural features and metal zoning at the porphyry to epithermal transition. Ore Geology Reviews. 2015. Vol. 66. Pp. 366–387

16. Ivanova Yu. N. Usloviya lokalizatsii i mineralogo-geokhimicheskie osobennosti Petropavlovskogo zoloto-porfirovogo mestorozhdeniya (Polyarnyy Ural) [Localization conditions and mineralogical and geochemical features of the Petropavlovsk gold-porphyry deposit (Polyarny Ural)], Candidate’s thesis, Moscow, IGEM RAN, 2016, 151 p.

17. Trofimov A. P., Funtikov B. V., Lyuchkin V.A., Pivovarov A. P., Vaganov I. N. ГGeochemical zoning and geological-geochemical model of the Western gold ore zone and the Petropavlovsk deposit (Polar Ural). Endogennoe orudenenie v podvizhnykh poyasakh: XIII chteniya pamyati A.N. Zavaritskogo, 10—14 sentyabrya 2007 g.: materialy Mezhdunarodnoy nauchnoy konferentsii [Endogenous mineralization in mobile belts: XIII readings in memory of a. A.N. Zavaritsky, September 10—14, 2007, materials of the International scientific conference], Ekaterinburg, 2007, pp. 226—229.

18. Soloviev S. G. Kryazhev S. G. Dvurechenskaya S. S. Geology, mineralization, stable isotope geochemistry and fluid inclusion characteristics of the Novogodnee-Monto oxidized Au-(Cu) skarn and porphyry deposit. Polar Ural, Russia. Mineralium Deposita. 2013. Vol. 48. pp. 603—625.

19. Ivanova Yu. N. Features of the composition of pyrite in gold deposits Petropavlovskoe and Novogodnee-Monto (Polar Urals). Vestnik Rossiyskogo Universiteta Druzhby Narodov. Inzhenernye Issledovaniya. 2015, no 4, pp. 102—109. [In Russ].

Our partners

Подписка на рассылку

Раз в месяц Вы будете получать информацию о новом номере журнала, новых книгах издательства, а также о конференциях, форумах и других профессиональных мероприятиях.