Abstract
The geochronologic (U-Pb isotopic system of zircons) and isotopic-geochemical (Sm-Nd isotopic system of the bulk rock) studies were performed along the profile extending from the eastern Sarmatia (in the west) to the Middle Volga megablock of Volgo-Uralia (in the east), i.e., across the entire junction zone for dating the integration of Sarmatia and Volgo-Uralia, representing two segments of the East European Craton. It is established that the examined rocks are characterized by the Paleoproterozoic Nd isotopic model age, which varies from 2.1 and 2.4 Ga, except for some samples indicating a similar age of the crust through the entire Sarmatia-Volgo-Uralia junction zone. The highly metamorphosed complexes of the granulite and amphibolite facies constituting the southwestern margin of Volgo-Uralia are Paleoproterozoic, not Archean, in age, contrary to previous views. Two Early Paleoproterozoic lithotectonic complexes are defined in Volgo-Uralia: South Volga metasedimentary and Tersa metasedimentary-volcanogenic. The obtained data confirm the asynchronous integration of individual segments into the East European Craton: the integration of Sarmatia and Volgo-Uralia approximately 2100–2000 Ma ago was followed by the conjunction of this newly-formed continent with Fennoscandia ca. 1800 Ma ago.
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References
E. V. Bibikova, S. V. Bogdanova, and R. M. Gorbatschev, “Isotopic Age, Nature, and Structure of the Precambrian Crust in Belarus,” Stratigr. Geol. Korrelyatsiya 3(6), 68–78 (1995).
E. V. Bibikova, S. V. Bogdanova, A. N. Larionov, et al., “New Data on the Early Archean Age of Granitoids in the Volga-Ural Segment of the East European Craton,” Dokl. Akad. Nauk 419, 219–233 (2008) (Doklady Earth Sciences 419, 243–247 (2008)].
S. V. Bogdanova, The Earth Crust of the East European Platform in the Early Precambrian (Exemplified by the Volgo-Uralian Segment) (Nauka, Moscow, 1986) [in Russian].
S. V. Bogdanova, “Segments of the East European Craton,” in EUROPROBE in Jablonna, Ed. by D.G. Gee and M. Beckholmen (European Science Foundation-Polish Academy Of Sciences, 1993), pp. 33–38.
S. V. Bogdanova, R. Gorbatschev, and R. G. Garetsky, “The East European Craton,” in Encyclopedia of Geology, Ed. by R.C. Selley, L.R. Cocks, and I.R. Plimer (Elsevier, 2005), pp. 34–49.
S. V. Bogdanova, I. K. Pashkevich, R. Gorbatschev, and M. Orlyuk, “Riphean Rifting and Major Palaeoproterozoic Boundaries in the East European Craton: Geology and Geophysics, Tectonophysics, No. 268, 1–22 (1996).
S. V. Bogdanova, R. Gorbatschev, M. Grad, et al., “EUROBRIDGE: New Insight into the Geodynamic Evolution of the East European Craton,” in European Lithosphere Dynamics, Ed. by D.G. Dee and R.A. Stephenson (Geol. Soc. London, 2006), Memoirs 32, pp. 599–628.
S. V. Bogdanova, R. G. Garetsky, G. I. Karataev, et al., “EUROBRIDGE Project: Paleoproterozoic Accretion and Collision of the Crust in Fennoscandia and Sarmatia. Geology and Geophysical Images,” in Structure and Dynamics of the Lithosphere of Eastern Europe. Results of Studies on the EUROPROBE Program. Essays on Regional Geology, Ed. by N.I. Pavlenkova (Rosnedra, RAN, Geokart, 2006), pp. 221–290 [in Russian].
N. M. Chernyshev, Platinum-bearing Formations of the Kursk-Voronezh Region (Voronezh. Univ., Voronezh, 2004) [in Russian].
N. M. Chernyshev, A. N. Ponomarenko, and E. N. Bartnitskii, “New Data on Age of Ni-bearing Differentiated Plutons of the Voronezh Crystalline Massif,” Dokl. Akad. Nauk AN USSR. Ser. B, No. 6, 35–39 (1990).
N. M. Chernyshev, V. M. Nenakhov, I. P. Lebedev, and Yu. N. Strik, “A Model of Geodynamic History of the Voronezh Massif in the Early Precambrian, Geotektonika, 31(3), 21–30 (1997) [Geotectonics, 31, 186–194 (1997)].
S. Claesson, E. V. Bibikova, S. V. Bogdanova, and R. M. Gorbatschev, “Isotopic Evidence of Palaeoproterozoic Accretion in the Basement of the East European Craton,” Tectonophysics 339(1–2), 1–18 (2001).
S. Claesson, E. Bibikova, S. Bogdanova, and V. Skobelev, “Archaean Terranes, Palaeoproterozoic Reworking and Accretion in the Ukrainian Shield, East European Craton,” in European Lithosphere Dynamics, Ed. by D.G. Gee and R.A. Stephenson (Geol. Soc. London, 2006), Memoirs 32, pp. 645–654.
D. J. DePaolo, “Nd Isotopes in the Colorado Front Range and Crust-Mantle Evolution in the Proterozoic,” Nature 291, 193–196 (1981).
M. M. Herron, “Geochemical Classification of Terrigenous Sands and Shales from Core or Log Data,” J. Sedim. Res. 58, 820–829 (1988).
P. D. Kinney, A. P. Nutman, and S. A. Occhipinti, “Reconnaissance Dating of Events Recorded in the Southern Part of the Capricorn Orogen,” Precambr. Res. 128, 27–294 (2004).
A. A. Kremenetskii, V. M. Nenakhov, V. Yu. Skryabin, T. N. Polyakova, R. A. Terent’ev, and G. S. Zolotareva, in Basic Problems of Geotectonics, Ed. by Yu. V. Karyakin (Geos, Moscow, 2007), pp. 360–363 [in Russian].
T. Krogh, “A Low Contamination Method for Hydrothermal Decomposition of Zircon and Extraction of U and Pb for Isotopic Age Determination,” Geochim. Cosmochim. Acta 37, 485–494 (1973).
T. A. Lapinskaya, L. P. Popova, A. V. Postnikov, and D. O. Yakovlev, “Geology of Early Cambrian Complexes,” in Crystalline Basement of Tatarstan and Problems of Its Petroleum Resource Potential, Ed. by. R.Kh. Muslimov and T.A. Lapinskaya (Denta, Kazan, 1996), pp. 53–59 [in Russian].
K. R. Ludwig, ISOPLOT/EX (Version 2.00). A Geochronological Toolkit for Microsoft Excel (Berkley Geochronology Center Spec. Publ., 1999), No. 1a.
M. V. Mints, I. B. Filppova, A. K. Suleimanov, et al., “3D Model of the Deep Structure of the Ryazan-Saratov and East Voronezh Collisional Orogens (Eastern Part of the Voronezh Crystalline Massif, East European Platform): Profile 1-EV, 2450–3500 km,” in Models of the Crust and Mantle Based on Results of Deep Seismic Profiling, Ed. by A.A. Lapilin and O.V. Petrov (VSEGEI, St. Petersburg, 2007), pp. 120–125 [in Russian].
A. V. Postnikov, Doctorate Dissertation in Geology and Mineralogy, Moscow, RGU, 2002.
K. A. Savko, Granulites of the Voronezh Crystalline Massif: Petrology and Evolution of Metamorphism (Voronezh. Univ., Voronezh, 1990) [in Russian].
A. A. Shchipansky and S. V. Bogdanova, “The Sarmatian Crustal Segment: Precambrian Correlation between the Voronezh Massif and the Ukrainian Shield across the Dnieper-Donets Aulacogen,” Tectonophysics, No. 268, 109–125 (1996).
A. A. Shchipansky, A. V. Samsonov, A. Yu. Petrova, and Yu. O. Larionova, “Geodynamics of the Eastern Margin of Sarmatia in the Paleoproterozoic,” Geotektonika, 411, 43–70 (2007) [Greotectonics 41, 38–62 (2007).
E. V. Sklyarov, D. P. Gladkochub, T. V. Donskaya, et al., Interpretation of Geochemical Data (Intermet Inzhiniring, Moscow, 2001) [in Russian].
J. S. Stacey and J. D. Kramers, “Approximation of Terrestrial Lead Isotope by a Two-stage Model,” Earth Planet. Sci. Lett, 26, 207–221 (1975).
R. H. Steiger and E. Jager, “Subcommission on Geochronology: Convention of the Use of Decay Constants in Geo- and Cosmochronology,” Earth Planet. Sci. Lett, 36, 359–363 (1976).
S. Wybraniec, “Transformations and Visualization of Potential Field Data,” Polish Geol. Inst. Spec. Pap., No. 1, 1–88 (199).
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Original Russian Text © E.V. Bibikova, S.V. Bogdanova, A.V. Postnikov, L.P. Popova, T.I. Kirnozova, M.M. Fugzan, V.V. Glushchenko, 2009, published in Stratigrafiya. Geologicheskaya Korrelyatsiya, 2009, Vol. 17, No. 6, pp. 3–16.
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Bibikova, E.V., Bogdanova, S.V., Postnikov, A.V. et al. Sarmatia-Volgo-Uralia junction zone: Isotopic-geochronologic characteristic of supracrustal rocks and granitoids. Stratigr. Geol. Correl. 17, 561–573 (2009). https://doi.org/10.1134/S086959380906001X
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DOI: https://doi.org/10.1134/S086959380906001X