Ore Mineralization of the Epithermal Samolazovskoe Gold-Ore Deposit, Aldan Shield (Russia)

Abstract:

The Samolazovskoe gold-ore deposit is located in the Central Aldan ore district (Russia) within the Yukhta multiphase volcano-plutonic massif, consisted of rocks of the monzonite-syenite formation (J₃–K₁). Four hydrothermal-metasomatic mineral parageneses are distinguished in the deposit: skarn, developed at the contact of syenites and rocks of the carbonate cover (V–Є); gumbeite, superimposed on the rocks of the intrusive massif; feldspatholite, developed in granite gneisses of the crystalline basement (PR) at their contact with the intrusive massif; ore-bearing fluorite–roscoelite–carbonate–quartz, superimposed on all above-mentioned types of mineralization. The main types of mineralization in the Samolazovskoe deposit are the following: (1) vein-disseminated linear type (now recovered in full volume); (2) vein-disseminated stockwork type; and (3) breccia-like type. Vein-filling minerals of the ores are quartz, fluorite, roscoelite, and carbonate. The main ore minerals are pyrite and marcasite; the secondary ones are bournonite, fahlore, sphalerite, galena, and chalcopyrite. Coloradoite and calaverite are less common; native gold occurs very rarely. Pyrite and marcasite are characterized by the following impurities (wt%): Sb (0.64–1.90), As (0.94–5.25), Te (1.02–3.82), and V ( 0.21–0.31).

• Periodical: Key Engineering Materials (Volume 769)
• Pages: 213-219
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.769.213
• Online since: April 2018
• Authors: Vasilii Ivanovich Leontev, Konstantin Chernigovtsev
• Keywords: Au-Ag Tellurides, Central Aldan Ore District, Samolazovskoe Field

References

[1] Y.Y. Bushuev, V.I. Leontev, The geochemical features of epithermal gold-telluride (Au-Te) ores of the Podgolechnoe deposit (Central Aldan Ore District, Yakutia), Key Engineering Materials, V 743, 2017, 422 - 425.

DOI: 10.4028/www.scientific.net/kem.743.422

[2] V.G. Vetluzhskikh, V.I. Kazansky, A. Ya. Kochetkov, V.M. Yanovsky, Central Aldan gold deposits, Geology of Ore Deposits. 44(6) 405-434.

[3] E.P. Maximov, V.I. Uyutov, V.M. Nikitin, The central Aldan gold-uranium ore magmatogenic system, Aldan-Stanovoy shield, Russia, Russian Journal of Pacific Geology, 4(2), 95-115.

DOI: 10.1134/s1819714010020016

[4] V.I. Leontev and N.V. Platonov, Features of the Lebedinsky-type gold mineralization of the Dzhekonda ore cluster (Central Aldan ore district), Reg. Geol. Metall. 65 (2016) 84–92.

[5] V.I. Leontev, Geological and genetic patterns of the gold mineralization localization at the Podgolechnoe deposit (Aldan Shield), Cand. Sci. (Geol.–Mineral.) Dissertation, St. Petersburg, (2016).

[6] V.I. Leontev, Y.Y. Bushuev, Ore mineralization in adular-fluorite metasomatites: Evidence of the Podgolechnoe alkalic-type epithermal gold deposit (Central Aldan ore district, Russia), Key Engineering Materials, V 743, 2017, 417 - 421.

DOI: 10.4028/www.scientific.net/kem.743.417

[7] V.N. Gusev, V.K. Elyuev, G.Yu Boyarko, Samolazovskoye gold skarn deposit, in: Prospecting and exploration of Siberian mineral deposits: Proceedings of the conference dedicated to the 70th anniversary of the Geology and Exploration of Mineral Deposits Department at the Tomsk Polytechnic University (Institute), Tomsk, 2000, pp.108-117.

DOI: 10.21285/2541-9455-2018-41-4-22-36

[8] V.I. Leontev Ores and metasomatic rocks of the Samolazovskoe gold-ore deposit (Central Aldan ore district), in: Proc IV Russ. Sci. Youth School Modernity in Study of Ore-Forming Processes,, Inst. Geol. Ore Deposits, Petrogr. Miner. Geochem., Moscow, 2014, pp.193-196.

DOI: 10.4028/www.scientific.net/kem.769.213

[9] D.L. Whitney, Abbreviations for names of rock-forming minerals, Am. Mineral. 95 (2010) 95, 185–187.

DOI: 10.2138/am.2010.3371

[10] V.A. Kovalenker, Conditions of formation and factors of large-scale concentration of gold porphyry and epithermal deposits, in: V.A. Kovalenker (Ed.), Large and Superlarge Deposits of Ore Minerals. Vol. 2. Strategic Kinds of Ore Raw Materials, Inst. Geol. Ore Deposits, Petrogr. Miner. Geochem., Moscow, 2006, p.143.

DOI: 10.1134/s1075701511020048

[11] D Muller, D.I. Groves, Potassic igneous rocks and associated gold-copper mineralization, 4th ed., Springer-Verlag, Heidelberg, (2016).

DOI: 10.1007/978-3-642-59665-0_10

[12] J. P. Richards, Alkalic-type epithermal gold deposits - a review, in: J. P. Richards (Ed.), Magmas, Fluid and Ore Deposits, Min. Assoc. Canada. Short Course Ser., 1995, vol. 23, p.367–400.

[13] S.G. Solovev, The metallogeny of shoshonitic magmatism, Nauchny Mir, Moscow, (2014).