| Annotation |
In this article the perspective gold ore district of the southern Urals is considered. Kumakskoe deposit is confined to the rift-related graben. The geological situation is associated with the age-varying carbon-terrigenous-siliceous (O2) and carbon-terrigenous-carbonate (C1v) strata formed in the rift-grade basins of the trough type in the coastal and remote parts of the continental shelf. The connection of Kumak gold ore district with the oil and gas basin of the Volga-Ural province is noted. In regional terms, black shale formation located in the Eastern part of the area of distribution of oil and gas fields of the Orenburg region. In regional terms, black shale formation located in the Eastern part of the area of distribution of oil and gas fields of the Orenburg region. There were recorded gas shows in the area of the Central Ural uplift, signs of gas release in the effusive rocks in the Iriklinsky gorge in the southern Urals, gas in the Khalilov ultrabasic massif. The thinning carbonaceous shale with depth and the appearance of these schists and intrusions of quartz diorite is set. Rocks consist of plagioclase (up to 70 %), quartz (15–25 %), biotite, magnetite, occasionally found hornblende and orthoclase. Quartz diorites are deformed, interstratified, and often have no clear boundaries with the contained metasomatites. Model of deposits’ formation in the Kumaksky region was developed – a step-by-step re-concentration of gold from high clark levels to industrial concentrations where ore-bearing heterogeneous carbon-siliceous (O2) and carbon-terrigenous-carbonate sequences are involved in metasomatism and metamorphism processes |
| References |
1. Buryak V. A., Bakulin Yu. I. Metallogeniya zolota (Metallogeny of gold). Vladivostok: Dalnauka, 1998. 273 c.
2. Buryak V. A., Khmelevskaya N. A. Suhoy log – odno iz krupneyshih zolotorudnyh mestorozhdeniy mira (Dry log is one of the largest gold deposits in the world). Vladivostok: Dalnauka, 1997. 155 p.
3. Ivankin P. F., Inshin P. V., Nazarova N. I. Sovetskaya geologiya (Soviet geology), 1985, no. 11, pp. 52–60.
4. Loshchinin V. P., Pankratiev P. V. Strategiya i protsessy osvoeniya georesursov: materialy ezhegodnoy nauchnoy sessii (Strategy and processes of geo-resources development: materials of the annual scientific session). Perm, 2006. P. 79–82.
5. Loshchinin V. P., Pankratiev P. V. Metallogeniya drevnih i sovremennyh okeanov (Metallogeny of ancient and modern oceans). Miass, 2003. P. 165–168.
6. Novgorodova M. I., Yakobs E. I., Shinkarenko Yu. G. Voprosy petrologii i metallogenii Urala (Questions of petrology and metallogeny of the Urals). Sverdlovsk: UNSC of the USSR Academy of Sciences, 1981. P. 115–116.
7. Olkhova A. I., Pankratiev P. P., Persiyantsev M. N., Khan I. S. Geologiya, razrabotka i obustrojstvo neftyanyh i gazovyh mestorozhdeniy Orenburgskoy oblasti (Geology, development and arrangement of oil and gas fields of Orenburg region). Orenburg, 2007. Issue. 4. P. 133–138.
8. Pankratiev P. V., Loshchinin V. P. Strategiya i protsessy osvoeniya georesursov: sb. st. (Strategy and processes of development of geo-resources: collected art.). Perm, 2005. P. 13–15.
9. Paragenezis metallov i nefti v osadochnyh tolshchah neftegazonosnyh bassejnov / D. I. Pavlov [i dr.]; pod red. D. I. Gorzhevskogo, D. I. Pavlova (Paragenesis of metals and oil in the sedimentary strata of oil and gas basins / D.I. Pavlov [and others]; Ed. D. I. Gorzhevsky, D. I. Pavlov). Moscow: Nedra, 1990. 268 p.
10. Polytikina M. A., Drozdov V. V., Tyurin A. M., Makarov S. Ye. Neftepromyslovoe delo (Oil-industrial business), 2009, no. 8, pp. 12–16.
11. Sazonov V. N., Ogorodnikov V. N., Koroteev V. A., Polenov Yu. A. Mestorozhdeniya zolota Urala (Deposits of gold from the Urals). Ekaterinburg: UGGGA, 1999. 570 p.
12. Kerrich R. Geological Association of Canada Short Course Notes [Geological Association of Canada Short Course Notes], 1989, vol. 6, pp. 129–197.
13. Kerrich R., Goldfard R. J., Groves D. I., Garwin S., Jia Y. Science in China [Science in China], 2000, vol. 43, pp. 1–68.
14. Large K., Maslennikov V., Robert F. Econ. Geol. [Econ. Geol.], 2007, vol. 102, pp. 1233–1267.
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