Gold and Silver Minerals and Conditions of Their Formation at the Dorozhnoye Deposit (Magadan Region, Russia)


This paper presents the brief geological and mineralogical characteristics of the Dorozhnoye mesothermal gold ore deposit (Magadan Region, Russia). The gold and silver minerals are represented by electrum (530‰ - 700‰), freibergite, stephanite, pyrargyrite and Bi-diaphorite. The homogeneous fluid inclusions enable one to determine that the quartz-molybdenite veins were formed at a temperature of 340°C to 140°C, and that the quartz-sulfide gold ore veins were formed at a temperature of 165°C to 125°C. It is assumed that the fluid had a mixed composition and evolved from K-chloride and K-carbonate to Na-chloride. The hypergenesis zone contains: high fineness gold (800‰ - 950‰), petrovskaite (AgAuS) and uytenbogaardtite (Ag3AuS2) associated with goethite and melanterite. The surface waters contain: Ca++ up to 293 mg/L, HCO3 up to 125 mg/L, SO4 up to 777 mg/L; рН is 5.8 to 7.2. Thermodynamic calculations have been conducted and Eh-pH diagrams have been built for the Au-Ag-S-H2O system at 25°C and 100°C (p = 1 bar) to reveal gold and silver stability fields. Au-Ag sulfides at the Dorozhnoye deposit are formed under oxidizing conditions and an acidic environment with dominating sulfates.

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Savva, N. , Palyanova, G. and Kolova, Е. (2014) Gold and Silver Minerals and Conditions of Their Formation at the Dorozhnoye Deposit (Magadan Region, Russia). Natural Resources, 5, 478-495. doi: 10.4236/nr.2014.59044.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Firsov, L.V. (1959) The Dorozhnoye Gold Ore Deposit. Works by VNII-1 54, 1-19.
[2] Kalinin, A.I. (1993) Report of Prospecting Works at the Dorozhnoye Ore Manifestation for 1990-1992. Sevvostgeolkom, Magadan.
[3] Al’shevskii, A.V. (2001) Gold Sulfide Minerals in Northeastern Russia: Occurrence, Composition, and Genesis. The Problems of Geology and Metallogeny in Northeastern Russia at the Boundary of the Millennia. 2, 135-138.
[4] Sharafutdinov, V.M. and Khasanov, I.M. (2010) Study of Electric Characteristics of Several Gold Ore Deposits of the Russian North-East. Modern Problems of Science and Education. 2, 28-35.
[5] La Bas, M.J., Maitr, R.V., Streckeisen, A. and Zannettin, B.A. (1986) A Chemical Classification of Volcanic Rocks Based on the Total Alkali-Silica Diagram. Journal of Petrology, 27, 745-750.
[6] Piskunov, L.L. (1987) Geologo-Petrologic Particularity of Volcanism of Island Arcs. Nauka, Мoscow.
[7] Whiteford, D.G., Nicholls, I.A. and Taylor, S.R. (1979) Spatial Variations in the Geochemistry of Quaterraty Lavas across the Sundaarc in Java and Bali. Contributions to Mineralogy and Petrology, 70, 341-356.
[8] Pal’yanova, G.A. and Savva, N.E. (2008) Some Sulfides of Gold and Silver: Composition, Mineral Assemblage, and Conditions of Formation. Theoretical Foundations of Chemical Engineering, 42, 749-761.
[9] Savva, N.E. and Palyanova, G.A. (2007) Genesis of Gold and Silver Sulphides at the Ulakhan Deposit (Northeastern Russia). Russian Geology and Geophysics, 48, 799-810.
[10] Savva, N.E., Palyanova, G.A. and Kolova, E.E. (2010) Gold and Silver Minerals in Zone of Secondary Sulfide Enrichment (Krutoe Ore Occurrence, Northeastern Russia). Vestnik SVNTs DVO RAN 1, 33-45.
[11] Urgenson, G.A. (1984) Typomorphism and Mineralization of Vein Quartz. Nedra, Мoscow.
[12] Goryachev, N.A. (1992) Gold-Quartz Vein Deposits of the Yano-Kolymsky Belt. FEB RAS, Vladivostok.
[13] Borisenko, A.S. (1977) Studies of Salinity of Gas-Liquid Inclusions in Minerals by the Cryometric Method. Soviet GeolGeophys, 18, 11-19.
[14] Bodnar, R.J. and Vityk, M.O. (1994) Interpretation of Microthermometric Data for H2O-NaCl Fluid Inclusions. In: De Vivo, B. and Frezzotti, M.L., Eds., Fluid Inclusions in Minerals: Methods and Application, Pontignsno-Siena, 117130.
[15] Ermakov, N.P. and Dolgov, Y.A. (1979) Thermobarogeochemistry. Nedra, Мoscow.
[16] Melnikov, F.P., Prokofyev, V.Y. and Shatagin, N.N. (2008) Thermobarogeochemistry: Textbook for Higher Schools. Academichesky Project, Moscow.
[17] Ryodder, E. (1987) Fluid Inclusions in Minerals. Mir, Мoscow.
[18] Krupp, R.E. and Weiser, T. (1992) On the Stability of Gold-Silver Alloys in the Weathering Environment. Mineralium Deposita, 27, 268-275.
[19] Webster, J.G. (1986) The Solubility of Gold and Silver in the System Au-Ag-S-O2-H2O at 25°C and 1 atm. Geochimica et Cosmochimica Acta, 50, 1837-1845.
[20] Firsov, L.V. (1985) Gold-Quartz Formation of the Yano-Kolymsky Belt. Nauka, Novosibirsk.
[21] O’Donoghue, M. (1987) Quartz. Butterworth & Co (Publishers) Ltd., London.
[22] Osadchii, E.G. and Rappo, O.A. (2004) Determination of Standard Thermodynamic Properties of Sulfides in the AgAu-S System by Means of a Solid-State Galvanic Cell. American Mineralogist, 89, 1405-1410.
[23] Robie, R.A. and Hemingway, B.S. (1995) Thermodynamic Properties of Minerals and Related Substances at 298.15 and 1 Bar (105 Pascals) Pressure and at Higher Temperatures. US Geological Survey Bulletin 2131.
[24] Garrels, R.M. and Christ, C.L. (1968) Solutions, Minerals, and Equilibria. Mir, Мoscow.
[25] Savva, N.E., Palyanova, G.A. and Byankin, M.A. (2012) The Problem of Genesis of Gold and Silver Sulfides and Selenides in the Kupol Deposit (Chukotka, Russia). Russian Geology and Geophysics, 53, 457-466.
[26] Palyanova, G., Karmanov, N. and Savva, N. (2014) Sulfidation of Native Gold. American Mineralogist, 99, 1095-1103.
[27] Rickard, D. and Luther, G. (2007) Chemistry of Iron Sulfides. Chemical Reviews, 107, 514-562.
[28] Krivovichev, V.G., Charykov, M.V., Yakovenko, O.S. and Depmayer, V. (2010) Thermodynamics of Arsenates, Selenites and Sulfates in the Sulfide Ore Oxidizing Zone. II. The Systems M1, M2//SO42--H2O (M1, M2=Fe2+, Fe3+,Cu2+, Zn2+, Pb2+, Ni2+, Co2+, H+) at 25°C. Zapiski RMO, 139, 3-18.
[29] Palyanova, G. (2008) Physicochemical Modeling of the Coupled Behavior of Gold and Silver in Hydrothermal Processes: Gold Fineness, Au/Ag Ratios and Their Possible Implications. Chemical Geology, 255, 399-413.
[30] Palyanova, G.A. (2008) Physicochemicalbehavior of Gold and Silver during the Process of Hydrothermal Ore Formation. SB RAS, Novosibirsk.
[31] Palyanova, G.A. and Kolonin, G.R. (2007) Geochemical Mobility of Au and Ag during Hydrothermal Transfer and Precipitation: Thermodynamic Simulation. Geochemistry International, 45, 744-757.

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