Журналы →  Gornyi Zhurnal →  2021 →  №9 →  Назад

GEOLOGY, SEARCH AND EXPLORATION OF MINERALS
Название Epithermal gold-bearing sulfide ore deposit Tulallar: Structure, structural geology and mineralization patterns
DOI 10.17580/gzh.2021.09.09
Автор Abdullaeva Sh. F., Baba-zade V. M., Imamverdiev N. A., Ismailova N. N.
Информация об авторе

Baku State University, Baku, Azerbaijan:

Sh. F. Abdullaeva, Associate Professor, Doctor of Geological and Mineralogical Sciences, shakhla.a@gmail.com
V. M. Baba-zade, Head of Department, Professor, Doctor of Geological and Mineralogical Sciences, Academician of the Azerbaijan National Academy of Sciences
N. A. Imamverdiev, Professor, Doctor of Geological and Mineralogical Sciences

 

AzerGold, Baku, Azerbaijan:
N. N. Ismailova, Leading Specialist at Geological Exploration Department

Реферат

In the latest decades, the characteristic of geology and mineralization in Somkhito–Karabakh island–arc paleosystem undergoes cardinal rethinking. This article describes epithermal gold-bearing sulfide ore deposit Tulallar in the Lesser Caucasus in Azerbaijan. The deposit adjoins a partly eroded volcano-tectonic depression and localizes in the east–westward striking Upper Jurassic andesite-dacitic and andesite strata more than 500 m thick. In the center, the Tulallar Fault splits the structure into three blocks — Western, Central and Eastern, which hold the same-name zone of gold-bearing ore lodes and veins. The main concentrators of finely dispersed and free gold are chalcopyrite and pyrite. The essential tectonic structures which govern distribution of the mineralization are the bordering branches of the Tulallar–Chiragdar–Toganaly fault. The test deposit is the volcanic epithermal shallow and medium-depth cluster within the structurally isolated wedge-like junction of the regional northwestern and northeastern faults. Based on the revealed localization patterns of the mineralization, the prognostic estimation procedure is developed for different-scale ore potentials. The direct and indirect signs of a mineralization are identified. The type, spatial location and intensity of these signs are assumed as the estimation criteria. Regarding the lithological criterion, these are the volcano-clastic facies and the same-age sub-volcanic Kimmeridgian bodies. The types of folds are considered as different values of folding structures. The same principle is used to differentiate between two types of faulting (strike-slip faults and thrustfaults). The information content of the criteria was assessed by the relative weights found empirically during filed operations, and by the method of analogy.

Ключевые слова Island–arc zone, gold, sulfide mineralization, volcano-tectonic depression, epithermal mineral deposit, volcanism, mineralogy, isotope, fluid pockets, metasomatism, genesis
Библиографический список

1. Akhmedov A. Z., Akhmedov A. M., Veliev G. A. Material constitution and process features of goldbearing Tulallar deposit in the Lesser Caucasus. Izvestiya NAN Azerbaydzhana. Ser. Nauki o Zemle. 2014. No. 3. pp. 3–11.
2. Abdullaeva Sh. F., Baba-zade V. M., Ismailova N. N. Space–time and genetic relationships of volcanic gold-bearing sulphide deposits in island–arc zones. Gornyi Zhurnal. 2020. No. 8. pp. 23–32. DOI: 10.17580/gzh.2020.08.04
3. Baba-zade V. M., Kekeliya S. A., Abdullaeva Sh. F., Kekeliya M. A. Gold-bearing sulphide deposits in island–arc paleosystems: Metallogeny features and geodynamic development conditions. Baku : CBS, 2015. 339 p.
4. Baba-zade V. M., Kekeliya S. A., Abdullaeva Sh. F., Kekeliya M. A. The main features of metallogeny in the Caucasus. Moscow : Nedra, 2020. 187 p.
5. Kovalev K. R., Kalinin Yu. A., Turkina O. M., Gimon V. O., Abramov B. N. Kultuminskoe gold–copper–iron–skarn deposit (Eastern Transbaikalia, Russia): petrogeochemical features of magmatism and ore-forming processes. Russian Geology and Geophysics. 2019. Vol. 60, No. 6. pp. 583–601.
6. Seravkin I. B. Paleovolcanism and massive sulphide deposits of the South Urals. Litosfera. 2002. No. 1. pp. 37–60.
7. Tkachev A. V., Bulov S. V., Rundkvist D. V., Pokhno S. A., Vishnevskaya N. A. et al. Web GIS «World’s Largest Mineral Deposits». Geoinformatika. 2015. No. 1. pp. 47–59.
8. Franklin J. M., Sangster D. M., Lydon J. W. Volcanic-associated massive sulfide deposits. Economic Geology. 1981. 75th AnniversaryVolume. pp. 485–627.
9. Adamia Sh., Chabukiani A., Chkhotua T., Enukidze O., Sadradze N. et al. Tethyan evolution and continental collision in Georgia. Tectonic Evolution, Collision, and Seismicity of Southwest Asia: In Honor of Manuel Berberian’s Forty-Five Years of Research Contributions : Speсial Paper 525. Boulder : The Geological Society of America, Inc., 2017. pp. 501–534.
10. Moritz R., Melkonyan R., Selby D., Pophkadze N., Gugushvili V. et al. Metallogeny of the Lesser Caucasus: From Arc Construction to Postcollision Evolution. Tectonics and Metallogeny of the Tethyan Orogenic Belt : Special Publication No. 19. Littleton : Society of Economic Geologists, 2016. pp. 157–192.
11. Sosson M., Rolland Y., Müller C., Danelian T., Melkonyan R. et al. Subductions, obduction and collision in the Lesser Caucasus (Armenia, Azerbaijan, Georgia), new insights. Sedimentary Basin Tectonics from the Black Sea and Caucasus to the Arabian Platform : Special Publications No. 340. London : Geological Society, 2010. pp. 329–352.
12. Tomkins A. G. On the source of orogenic gold. Geology. 2013. Vol. 41, No. 12. pp. 1255–1256.
13. Goldfarb R. J., Groves D. I. Orogenic gold: Common or evolving fluid and metal sources through time. Lithos. 2015. Vol. 233. pp. 2–26.
14. Savva N. E., Volkov A. V., Sidorov A. A., Kolova E. E., Murashov K. Yu. Primorskoe Epithermal Ag–Au Deposit (Northeastern Russia): Geological Setting, Mineralogy, Geochemistry, and Ore Formation Conditions. Geology of Ore Deposits. 2019. Vol. 61, No. 1. pp. 50–73.
15. Volkov A. V., Murashov K. Yu., Sidorov A. A. Geochemical Patterns of Epithermal Ore Formation in the Okhotsk–Chukotka Volcanoplutonic Belt (Northeast Russia). Doklady Earth Sciences. 2017. Vol. 474, No. 1. pp. 595–598.
16. Volkov A. V., Prokofev V. Yu., Vinokurov S. F., Andreeva O. V., Kiseleva G. D. et al. Valunistoe Epithermal Au–Ag Deposit (East Chukotka, Russia): Geological Structure, Mineralogical–Geochemical Peculiarities and Mineralization Conditions. Geology of Ore Deposits. 2020. Vol. 62, No. 2. pp. 97–121.

17. Lebedev V. A., Chugaev A. V., Parfenov A. V. Age and Ore Matter Sources of Au-Sulfide Mineralization of the Tanadon Deposit, Republic of North Ossetia–Alania, Greater Caucasus. Geology of Ore Deposits. 2018. Vol. 60, No. 4. pp. 328–346.
18. Vikentyev I. V., Belogub E. V., Novoselov K. A., Moloshaq V. P. Metamorphism of volcanogenic massive sulphide deposits in the Urals. Ore geology. Ore Geology Reviews. 2017. Vol. 85. pp. 30–63.
19. Kravtsova R. G. Geochemistry a nd orogenic conditions of gold- and silver-bearing ore-forming systems in the northern coastal area of the Okhotsk Sea. Novosibirsk : Geo, 2010. 292 p.
20. Kempe U., Seltmann R., Graupner T., Rodionov N., Sergeev S. A. et al. Concordant U–Pb SHRIMP ages of U-rich zircon in granitoids from the Muruntau gold district (Uzbekistan): Timing of intrusion, alteration ages, or meaningless numbers. Ore Geology Reviews. 2015. Vol. 65. pp. 308–326.
21. Holland H. D., Turekian K. K. (Eds.) Treatise on Geochemistry. 2nd ed. Amsterdam : Elsevier, 2014. Vol. 13. 650 p.
22. Groves D. I., Bierlein F. P., Meinert L. D., Hitzman M. W. Iron Oxide Copper-Gold (IOCG) Deposits through Earth History: Implications for Origin, Lithospheric Setting, and Distinction from Other Epigenetic Iron Oxide Deposits. Economic Geology. 2010. Vol. 105, No. 3. pp. 641–654.
23. Sidorov A. A., Starostin V. I., Volkov A. V. Ore formation analysis. Moscow : Maks-Press, 2011. 177 p.
24. Groves D. I., Goldfarb R. J., Santosh M. The conjunction of factors that lead to formation of giant gold provinces and deposits in non-arc settings. Geoscience Frontiers. 2016. Vol. 7, Iss. 3. pp. 303–314.
25 . Groves D. I., Liang Zhang, Santosh M. Subduction, mantle metasomatism, and gold: A dynamic and genetic conjunction. Geological Society of America Bulletin. 2019. Vol. 137, No. 7-8. pp. 1419–1426.
26. John D. A., Vikre P. G., du Bray E. A., Blakely R. J., Fey D. L. et al. Descriptive Models for Epithermal Gold-Silver Deposits: Scientific Investigations Report 2010-5070-Q. Reston : U.S. Geological Survey, 2018. 264 p.
27. Goryachev N. A. Gold Deposits in the Earth’s History. Geology of Ore Deposits. 2019. Vol. 61, No. 6. pp. 495–511.
28. McDonald I., Boyce A. J., Butler I. B., Herrington R. J., Polya D. A. (Eds.) Mineral Deposits and Earth Evolution : Geological Society Special Publication No. 248. London : The Geological Society, 2005. 264 p.

Language of full-text русский
Полный текст статьи Получить
Назад