Thermodynamic model of formation of carbonates and uranium mineral phases in lakes Namshi-Nur and Tsagan-Tyrm (Cisbaikalia)

Russian Geology and Geophysics - Tập 59 - Trang 374-385 - 2018
V.D. Strakhovenko, O.L. Gas’kova

Tóm tắt

Abstract The Tazheran lakes are located compactly in the small Tazheran steppe area. Their bottom sediments are predominantly various calcite–dolomite carbonates, and their waters are rich in uranium. The studies have shown that the main process in these lakes is chemogenic carbonate precipitation with the participation of carbon dioxide formed through the bacterial destruction of organic matter. For thermodynamic modeling of the composition of bottom sediments, we chose two lakes with different basic parameters. Calculations were made for the 15-component heterogeneous system H2O–Na–Ca–Mg–K–Sr–Ba–Si–Al–Cl–C–S–Fe–U–Mn including particles in the solution, minerals, and gases at 25 °C and 1 bar. As starting information, we used the obtained analytical data on the natural composition of waters and bottom sediments. The results show that calcite–dolomite carbonates are predominant in the bottom sediments and the destruction of organic matter results in reducing conditions. This confirms the hypothesis of the formation of mineral phases of U(IV) during diagenetic processes in the bottom sediments of the studied lakes.

Tài liệu tham khảo

Alessi, 2012, The product of microbial uranium reduction includes multiple species with U(IV)–phosphate coordination, Geochim. Cosmochim. Acta, 131, 115, 10.1016/j.gca.2014.01.005 Alessi, 2014, Quantitative separation of monomeric U(IV) from UO2 in products of U(VI) reduction, Environ. Sci. Technol., 46, 6150, 10.1021/es204123z Andersson, 2001, The importance of colloids for the behavior of uranium isotopes in the low-salinity zone of a stable estuary, Geochim. Cosmochim. Acta, 65, 13, 10.1016/S0016-7037(00)00514-7 Bargar, 2013, Uranium redox transition pathways in acetate-amended sediments, Proc. Natl. Acad. Sci., 110, 4506, 10.1073/pnas.1219198110 Belli, 2015, Effects of aqueous uranyl speciation on the kinetics of microbial uranium reduction, Geochim. Cosmochim. Acta, 157, 109, 10.1016/j.gca.2015.02.006 Bernier-Latmani, 2010, Non-uraninite products of microbial U(VI) reduction, Environ. Sci. Technol., 44, 9456, 10.1021/es101675a Bonnetti, 2015, The Nuheting deposit, Erlian Basin, NE China: Synsedimentary to diagenetic uranium mineralization, Ore Geol. Rev., 69, 118, 10.1016/j.oregeorev.2015.02.010 Bruggeman, 2012, Redox-active phases and radionuclide equilibrium valence state in subsurface environments—New insights from 6th EC FP IP FUNMIG, Appl. Geochem., 27, 404, 10.1016/j.apgeochem.2011.09.010 Burgos, 2008, Characterization of uraninite nanoparticles produced by Shewanella oneidensis MR-1, Geochim. Cosmochim. Acta, 72, 4901, 10.1016/j.gca.2008.07.016 Chabaux, 2011, Geochemical and isotopic (Sr, U) variations of lake waters in the Ol’khon Region, Siberia, Russia: Origin and paleoenvironmental implications, Comptes Rendus Geosci., 343, 462, 10.1016/j.crte.2011.07.004 Chalov, 1975, Isotope Fractionation of Natural Uranium [in Russian] Couture, 2016, Spectroscopic determination of ecologically relevant plant secondary metabolites, Methods Ecol. Evol., 7, 1402, 10.1111/2041-210X.12596 Doornbusch, 2015, Iron oxide formation from FeCl2 solutions in the presence of uranyl (UO22 +) cations and carbonate rich media, Geochim. Cosmochim. Acta, 158, 22, 10.1016/j.gca.2015.02.038 Evseeva, 1975, Geochemistry of Uranium in Hypergenesis Zone [in Russian] Fredrickson, 2002, Influence of Mn oxides on the reduction of uranium (VI) by the metal-reducing bacterium Shewanella putrefaciens, Geochim. Cosmochim. Acta, 66, 3247, 10.1016/S0016-7037(02)00928-6 Gas’kova, 2017, Composition of brines and mineral zoning of the bottom sediments of soda lakes in the Kulunda steppe (West Siberia), Russian Geology and Geophysics (Geologiya i Geofizika), 58, 1199, 10.1016/j.rgg.2016.09.034 Gaskova, 2011, Reconstruction of solution chemistry evolution based on the sedimentary record of salt lakes in the Olkhon region, Russian Geology and Geophysics (Geologiya i Geofizika), 52, 548, 10.1016/j.rgg.2011.04.007 Gaskova, 2015, Thermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia), Dokl. Earth Sci., 465, 1159, 10.1134/S1028334X15110094 Gaskova, 2017, A simple method to model the reduced environment of lake bottom sapropel formation, Chinese J. Oceanol. Limnol., 35, 956, 10.1007/s00343-017-5345-9 Kiselev, 1999, Even Uranium Isotopes in the Geosphere [in Russian] Hsi, 1985, Adsorption of uranyl onto ferric oxyhydroxides: application of the surface complexation site-binding model, Geochim. Cosmochim. Acta, 49, 1931, 10.1016/0016-7037(85)90088-2 Koch-Steindl, 2001, Considerations on the behaviour of long-lived radionuclides in the soil, Radiat. Environ. Biophys., 40, 93, 10.1007/s004110100098 Komlos, 2008, Real time speciation of uranium during active bioremediation and U(IV) reoxidation, J. Environ. Eng. ASCE, 134, 78, 10.1061/(ASCE)0733-9372(2008)134:2(78) Komlos, 2008, Long-term dynamics of uranium reduction/reoxidation under low sulfate conditions, Geochim. Cosmochim. Acta, 72, 3603, 10.1016/j.gca.2008.05.040 Kwok, 2008, Thermodynamics of salt lake system: representation, experiments, and visualization, AIChE J., 54, 706, 10.1002/aic.11421 Lee, 2014, Uranium (IV) remobilization under sulfate reducing conditions, Chem. Geol., 370, 40, 10.1016/j.chemgeo.2014.01.020 Lein, 2009, Biogeochemical Ocean Methane Cycle [in Russian] Li, 2016, Phase diagrams and thermochemical modeling of salt lake brine systems. II. NaCl + H2O, KCl + H2O, MgCl2 + H2O and CaCl2 + H2O systems, CALPHAD: Comput. Coupling Phase Diagrams Thermochem., 53, 78, 10.1016/j.calphad.2016.03.007 Liger, 1999, Surface catalysis of uranium(VI) reduction by iron(II), Geochim. Cosmochim. Acta, 63, 2939, 10.1016/S0016-7037(99)00265-3 Lisitsyn, 2014, Modern concepts of oceanic and marine sedimentation. Ocean as a natural recorder of the interaction between the Earth’s geospheres, The World Ocean, Vol. 2: Physics, Chemistry, and Biology of the Ocean. Oceanic Sedimentation and Interaction between the Earth’s Geospheres [in Russian], 334 Moon, 2009, Biogenic U(IV) oxidation by dissolved oxygen and nitrate in sediment after prolonged U(VI)/Fe(III)SO42− reduction, J. Contam. Hydrol., 105, 18, 10.1016/j.jconhyd.2008.10.014 Newsome, 2014, The biogeochemistry and bioremediation of uranium and other priority radionuclides, Chem. Geol., 363, 164, 10.1016/j.chemgeo.2013.10.034 Newsome, 2015, The stability of microbially reduced U(IV); impact of residual electron donor and sediment ageing, Chem. Geol., 409, 125, 10.1016/j.chemgeo.2015.05.016 Qafoku, 2014, Geochemical and mineralogical investigation of uranium in multi-element contaminated, organic-rich subsurface sediment, Appl. Geochem., 42, 77, 10.1016/j.apgeochem.2013.12.001 Reerburgh, 1982, A major sink and flux control for methane in marine sediments: anaerobic consumption, The Dynamic Environment of the Ocean Floor, 203 Ryzhenko, 2016, Computer simulation of the transformation of natural living matter into kerogen, Geochem. Int., 54, 706, 10.1134/S0016702916080115 Sani, 2004, Reduction of uranium (VI) under sulfate-reducing conditions in the presence of Fe(III)-(hydr)oxides, Geochim. Cosmochim. Acta, 68, 2639, 10.1016/j.gca.2004.01.005 Schofield, 2008, Structure of biogenic UO2 produced by Shewanella oneidensis MR-1, Environ. Sci. Technol., 42, 7898, 10.1021/es800579g Sharp, 2011, Uranium speciation and stability after reductive immobilization in aquifer sediments, Geochim. Cosmochim. Acta, 75, 6497, 10.1016/j.gca.2011.08.022 Shvarov, 2008, HCh: new potentialities for the thermodynamic simulation of geochemical systems offered by Windows, Geochem. Int., 46, 834, 10.1134/S0016702908080089 Sklyarova, 2002, Structural control of location and water chemistry of lakes and springs in the Ol’khon region, Geologiya i Geofizika (Russian Geology and Geophysics), 43, 732 Solotchina, 2011, Climatic signals in the Holocene carbonate sedimentary record of Namshi-Nur lake, West Baikal region, Dokl. Earth Sci., 436, 295, 10.1134/S1028334X11020267 Strakhovenko, 2015, Geochemical factors for endogenic mineral formation in the bottom sediments of the Tazheran lakes (Baikal area), Russian Geology and Geophysics (Geologiya i Geofizika), 56, 1437, 10.1016/j.rgg.2015.09.006 Strakhovenko, V.D., Ovdina, E.A., Vosel’, Yu.S., 2015b. Isotope-geochemical characteristics of bottom sediments and waters of small lakes in the Baikal Rift Zone, in: Isotope Dating of Geologic Processes: New Results, Approaches, and Prospects. Proc. Sixth Russ. Conf. on Isotope Geochronology, St. Petersburg, 2–5 June 2015 [in Russian]. Springer, St. Petersburg, pp. 293–295. Tzifas, 2014, Uranium-bearing phosphatized limestones of NW Greece, J. Geochem. Explor., 143, 62, 10.1016/j.gexplo.2014.03.009 Ulrich, 2009, Comparative dissolution kinetics of biogenic and chemogenic uraninite under oxidizing conditions in the presence of carbonate, Geochim. Cosmochim. Acta, 73, 6065, 10.1016/j.gca.2009.07.012 Vinogradov, 2013, The Fundamentals of Uranium Geochemistry [in Russian] Vosel, 2015, The behavior of uranium and manganese under the diagenesis of carbonate sediments in small lakes of the Baikal region, Dokl. Earth Sci., 462, 522, 10.1134/S1028334X15050207 Wallmann, 2006, Kinetics of organic matter degradation, microbial methane generation, and gas hydrate formation in anoxic marine sediments, Geochim. Cosmochim. Acta, 70, 3905, 10.1016/j.gca.2006.06.003 Wallmann, 2008, Silicate weathering in anoxic marine sediments, Geochim. Cosmochim. Acta, 72, 3067, 10.1016/j.gca.2008.03.026 Wang, 2013, Uraninite oxidation and dissolution induced by manganese oxide: A redox reaction between two insoluble minerals, Geochim. Cosmochim. Acta, 100, 24, 10.1016/j.gca.2012.09.053 Zavarzin, 2004, Lectures on Natural Microbiology [in Russian]