Fluid Inclusion Evidences for the P-T Conditions of Quartz Veins Formation in the Black Shale-Hosted Gold Deposits, Bodaybo Ore Region, Russia

Abstract

The P-T conditions of auriferous and barren quartz veins from Kopylovsky, Kavkaz and Krasnoye gold deposits in Proterozoic black shales of Bodaybo ore region are presented the first time in this study. Fluid inclusions trapped in auriferous quartz are aqueous Na±K-Mg chloride with salinity of 6 wt.%-8.8 wt.% NaCl_eqv. Homogenization temperatures vary from 260 to 350 °C, and calculated trapping pressures are 1.2–1.6 kbar. The fluids trapped in barren quartz have more complicated compositions with Na, K, Mg and Fe chlorides, salinity up to 13 wt.% NaCl_eqv, and homogenization temperatures ranging between 140 and 280 °C. The volatiles in fluids are dominated by H₂O, followed by CO₂ with minor amounts of CH₄ and N₂. We suppose that auriferous and barren quartz veins have been formed due to the basic metamorphogenic fluid as evidenced by the close slat and gas fluid composition.

Keywords

Bodaybo / black shales / gold deposits / gold-bearing quartz / barren veins / fluid inclusions / P-T conditions

References

[1] Aksenov I M. Report on Results of Geological Exploration in 2000–2004 with Estimation of Reserves at the Kopylovsky Gold Deposit, 2004, Irkutsk: Ugryum-Reka Open Joint Stock Company (in Russian)

[2] Ankusheva N N, Palenova E E, Pankrushina E A, . Formation Conditions of Au-Bearing and Barren Quartz Veins of the Krasnoe Gold Deposit, Eastern Siberia: Fluid Inclusion and Isotopic Data. Mineralogy, 2019, 1: 57-71. (in Russian)

[3] Bodnar R J, Vityk M O. De Vivo B, Frezzotti M L. Interpretation of Microthermometric Data for H₂O-NaCl Fluid Inclusions. Fluid Inclusions in Minerals: Methods and Applications, 1994, Pontignana-Siena: Virginia Polytechnic Institute and State University, 117-130.

[4] Bottrell S H, Miller M F. The Geochemical Behavior of Nitrogen Compounds during the Formation of Black Shale-Hosted Quartz-Vein Gold Deposits, North Wales. Applied Geochemistry, 1990, 5(3): 289-296.

[5] Bowers T S. The Deposition of Gold and Other Metals: Pressure-Induced Fluid Immiscibility and Associated Stable Isotope Signatures. Geochimica et Cosmochimica Acta, 1991, 55(9): 2417-2434.

[6] Brown P E. FLINCOR: A New Microcomputer Program for the Reduction and Investigation of Fluid Inclusion Data. American Mineralogist, 1989, 74(11): 1390-1393.

[7] Budyak, A. E., Tarasova, Y. I., Chugaev, A. V., 2018. Structural and Geo-chemical Characteristics of Krasnoye Deposit, Baikal-Patom Highland, Russia. The International Youth School “Metallogeny of Ancient and Modern Oceans-2018, Volcanism and Ore Formation”. 199–202 (in Russian)

[8] Bukharov A A, Khalilov V A, Strakhova T M, . Geology of the Baikal-Patom Highland from New Data on U-Pb Dating of Accessory Zircon. Russian Geology and Geophysics, 1992, 33: 29-39.

[9] Burke E A J. Raman Microspectrometry of Fluid Inclusions. Lithos, 2001, 55(1/2/3/4): 139-158.

[10] Buryak V A, Bakulin Y I. Metallogeny of Gold, 1998, Dalnauka: Vladivostok, 369 (in Russian)

[11] Chugaev A V, Plotinskaya O Y, Chernyshev I V, . Lead Isotope Heterogeneity in Sulfides from Different Assemblages at the Verninskoe Gold Deposit (Baikal-Patom Highland, Russia). Doklady Earth Sciences, 2014, 457(1): 887-892.

[12] Davis D W, Lowenstein T K, Spencer R J. Melting Behavior of Fluid Inclusions in Laboratory-Grown Halite Crystals in the Systems NaCl-H₂O, NaCl-KCl-H₂O, NaCl-MgCl₂-H₂O and CaCl₂-NaCl-H₂O. Geochimica et Cosmochimica Acta, 1990, 54(3): 591-601.

[13] Distler V V, Yudovskaya M A, Mitrofanov G L, . Geology, Composition, and Genesis of the Sukhoi Log Noble Metals Deposit, Russia. Ore Geology Reviews, 2004, 24(1/2): 7-44.

[14] Gavrilov A M, Kryazhev S G. Mineralogical and Geochemical Features of Ores from Sukhoi Log Deposit. Razvedka i Ohrana Nedr, 2008, 8: 3-16. (in Russian)

[15] Gerasimov N S, Grebenshikova V I, Noskov D A, . On Early Paleozoic Age of the Angara-Vitim Batholith. In: Abstracts of All-Russian Scientific Meeting “Geodynamic Evolution of Lithosphere of the Central-Asian Mobile Belt (from Ocean to Continent)”, 2007, Irkutsk: Institute of Earth Crust SB RAS, 9-14 2007

[16] Goldfarb R J, Baker T, Dube B, . Hedenquist J W, Thompson J F H, Goldfarb R G, . Distribution, Character, and Genesis of Gold Deposits in Metamorphic Terranes. Economic Geology 100th Anniversary Volume, 2005, Littleton, Colorado: Society of Economic Geologists, 407-450.

[17] Groves D I, Goldfarb R J, Robert F, . Gold Deposits in Metamorphic Belts: Overview of Current Understanding, Outstanding Problems, Future Research, and Exploration Significance. Economic Geology, 2003, 98(1): 1-29.

[18] Ivanov A I. Ozherelie Deposit—A New Type of Native Deposits in Bodaybo Ore District. Isvestiya of SB RAN: Geology, Development, and Mining of Ore Deposits, 2008, 32(6): 14-26. (in Russian)

[19] Kulchitskaya, A. A., Chernish, D. S., 2012. About the Possible H2 Inclusions in Minerals of Ancient Rocks from the Ukranian Shield. In: XIII All-Russia Thermobarogeochemistry Conference & IV APIFIS Symposium, Moscow. 204–207 (in Russian)

[20] Kuzmenko A A. Gold Mineralization in Artemovsky Ore Cluster on the Example of the Krasnoye Deposit (Bodaybo Region, Eastern Siberia). III All-Russia Youth Conference “New Knowledge in Ore Formation”, 2013, Moscow: IGEM RAS, 146-150 (in Russian)

[21] Large R R, Maslennikov V V, Robert F, . Multistage Sedimentary and Metamorphic Origin of Pyrite and Gold in the Giant Suk-hoi Log Deposit, Lena Gold Province, Russia. Economic Geology, 2007, 102(7): 1233-1267.

[22] Laverov N P, Chernyshev I V, Chugaev A V, . Formation Stages of the Large-Scale Noble Metal Mineralization in the Sukhoi Log Deposit, East Siberia: Results of Isotope-Geochronological Study. Doklady Earth Sciences, 2007, 415(1): 810-814.

[23] Migachev I F, Karpenko I A, Ivanov A I. The Sukhoi Log Deposit: Reappraisal and Estimation of Forecasting of Ore Field and District. Otechestvennaya Geologiya, 2008, 2: 55-67. (in Russian)

[24] Mironova O F, Naumov V B, Salazkin A N. Nitrogen in Mineral-Forming Fluids. Gas Chromatography Determination on Fluid Inclusions in Minerals. Geokhimiya, 1992, 7: 979-991.

[25] Palenova E E. Mineralogy of the Kopylovskoe, Kavkaz, Krasnoe Gold Deposits (Artemovsk Ore Cluster, Bodaybo Region): [Dissertation], 2015, Moscow: IGEM RAS, 24 (in Russian)

[26] Palenova E E, Belogub E V, Novoselov K A, . Mineralogical and Geochemical Characteristics of Carbonaceous Sequences at the Gold Objects in the Artemovskiy Cluster, Bodaybo District. Izv. SO RAEN. Geol., Poiski i Razvedka Rudn. Mestorozhd., 2013, 43(2): 29-36. (in Russian)

[27] Palenova E E, Belogub E V, Plotinskaya O Y, . Chemical Evolution of Pyrite at the Kopylovsky and Kavkaz Black Shale-Hosted Gold Deposits, Bodaybo District, Russia: Evidence from EPMA and LA-ICP-MS Data. Geology of Ore Deposits, 2015, 57(1): 64-84.

[28] Palenova E E, Blinov I A, Zabotina M V. Ag Minerals in Quartz Veins of the Krasnoye Deposit, Bodaybo Region. Mineralogiya, 2015, 2: 9-17. (in Russian)

[29] Pankrushina, E. A., Votyakov, S. L., Ankusheva, N. N., et al., 2019. Quanta-tive Determination of Gas Phase Composition of Fluid Inclusions in Quartz from Krasnoye Gold Deposit (the Eastern Siberia) by Raman Microspectroscopy. Minerals: Structure, Properties, Methods of Investigation. Proceedings in Earth and Environmental Sciences. Springer. 169–174

[30] Prokofiev V Y, Afanasieva Z B, Ivanova G F, . Study of Fluid Inclusions in Minerals of the Olympiandinskoe Au-(Sb-W) Deposit (Yenisey Ridge). Geokhimiya, 1994, 7: 1012-1029. (in Russian)

[31] Roedder E. Fluid Inclusions. Reviews in Mineralogy, 1984, 12 664.

[32] Rundqvist D V. Time Factor in the Formation of Hydrothermal Deposits: Periods, Epochs, Megastages, and Stages of Ore Formation. Geol. Ore Deposits, 1997, 39(1): 8-19. (in Russian)

[33] Rusinov V L, Rusinova O V, Kryazhev S G, . Wall-Rock Metasomatism of Carbonaceous Terrigenous Rocks in the Lena Gold District. Geology of Ore Deposits, 2008, 50(1): 1-40.

[34] Shepherd T J, Bottrell S H, Miller M F. Fluid Inclusion Volatiles as an Exploration Guide to Black Shale-Hosted Gold Deposits, Dolgellau Gold Belt, North Wales, UK. Journal of Geochemical Exploration, 1991, 42(1): 5-24.

[35] Spencer R J, Møller N, Weare J H. The Prediction of Mineral Solubilities in Natural Waters: A Chemical Equilibrium Model for the Na-K-Ca-Mg-Cl-SO4 System at Temperatures below 25 °C. Geochimica et Cosmochimica Acta, 1990, 54(3): 575-590.

[36] Tarasova Y I, Budyak A E. The Parameters of Ore-Forming Fluid of Chertovo Koryto Deposit. Main Problems in Study of Endogenic Ore Deposits: New Perspectives, 2017, Moscow: IGEM RAS, 231-234 All-Russia Conference

[37] Thiery R, Vidal J, Dubessy J. Phase Equilibria Modelling Applied to Fluid Inclusions: Liquid-Vapour Equilibria and Calculation of the Molar Volume in the CO₂-CH₄-N₂ System. Geochimica et Cosmochimica Acta, 1994, 58(3): 1073-1082.

[38] Van den Kerkhof A M, Hein U F. Fluid Inclusion Petrography. Lithos, 2001, 55(1/2/3/4): 27-47.

[39] Xu J, Hart C J R, Wang L, . Carbonic Fluid Overprints in Volcanogenic Massive Sulfide Deposits: Examples from the Kelan Volcanosedimentary Basin, Altaides, China. Economic Geology, 2011, 106(1): 145-155.

[40] Yudovich Y E, Ketris M P. Geochemistry of Black Shales, 1988, Leningrad: Nauka, 272 (in Russian)

[41] Yudovskaya M A, Distler V V, Prokofiev V Y, . Gold Mineralisation and Orogenic Metamorphism in the Lena Province of Siberia as Assessed from Chertovo Koryto and Sukhoi Log Deposits. Geoscience Frontiers, 2016, 7(3): 453-481.

[42] Yudovskaya M A, Distler V V, Rodionov N V, . Relationship between Metamorphism and Ore Formation at the Sukhoi Log Gold Deposit Hosted in Black Slates from the Data of U-Th-Pb Isotopic SHRIMP-Dating of Accessory Minerals. Geology of Ore Deposits, 2011, 53(1): 27-57.