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Intrusive magmatism during early evolutionary stages of the Ural epioceanic orogen: U-Pb geochronology (LA ICP MS, NORDSIM, and SHRIMP II), geochemistry, and evolutionary tendencies

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Abstract

In recent years extensive data have been obtained on all geologically important intrusive complexes in the Central and Southern Urals by U-Pb zircon geochronologic high spatial resolution techniques (LA ICP MS, NORDSIM, and SHRIMP II). This made it possible to revise the current concepts for the magmatic activity of the Ural Paleozoic orogen.

Intrusive magmatism that occurred early in the evolution of the Ural orogen was focused mostly in the Tagil megazone, was characterized by several common features, and took place nearly simultaneously within both of its zones: the Platinum Belt and the Tagil volcanic zone.

The composition of the parental magmas of all complexes of this age corresponded to an ultramafic or mafic source; i.e., the magma was derived from a mantle source. The gabbroids most closely approximating the composition of the parental magmatic melts show geochemical features of suprasubduction melts, such as negative HFSE (Nb, Ti, and Zr) and positive Ba and Sr anomalies. The REE patterns of these rocks display variable La/Lu ratios, which are usually higher than 1. These geochemical features suggest that this magmatic source was a metasomatized mantle wedge, above which (at a depth of 40–25 km) a block of the pre-Ural basement occurred in Ordovician-Silurian time. The Tagil megazone started to develop on this block. By the Devonian, i.e., by the time when the Magnitogorsk zone began to evolve (∼400 Ma) and continental-margin gabbro-tonalite-granodiorite magmatism was initiated (360 Ma), this basement had been destroyed by orogenesis. The major phases of Paleozoic magmatism in the Urals likely corresponded to global epochs of tectono-magmatic activity, because they correlate well with known data on the evolution of the 87Sr/86Sr ratio in Paleozoic seawater.

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References

  1. Ophiolites of the Southern Urals. Preprint of Ural. Sci. Center, Russian Academy of Sciences, Sverdlovsk, 1985.

  2. E. V. Khain, A. A. Fedotova, E. B. Sal’nikova, et al., “New Data on the Age of Ophiolites of the Polar Urals and Evolution of Paleoasian Continental Margin in the Late Precambrian and Early Paleozoic,” in 10th Zavaritsky Readings on Geology and Metallogeny of Ultramafic-Mafic and Granitoid Intrusive Associations of Folded Areas, Yekaterinburg, Russia, 2004 (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2004), pp. 183–186 [in Russian].

    Google Scholar 

  3. V. N. Puchkov, “Age of the Ophiolites of the Urals,” in 12th Zavaritsky Readings on Ophiolites: Geology, Petrology, Metallogeny, and Geodynamics, Yekaterinburg, Russia, 2006 (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2006), pp. 121–129 [in Russian].

    Google Scholar 

  4. G. N. Savel’eva, A. M. Shishkin, A. N. Larionov, et al., “Late Vendian Tectonomagmatic Events in the Mantle Ophiolite Complexes of the Polar Urals: U-Pb Data on Zircon from Chromites,” in 12th Zavaritsky Readings on Ophiolites: Geology, Petrology, Metallogeny, and Geodynamics, Yekaterinburg, Russia, 2006 (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2006), pp. 160–164 [in Russian].

    Google Scholar 

  5. G. B. Fershtater, A. A. Krasnobaev, F. Bea, et al., “Stages of the Paleozoic Intrusive Magmatism of the Uralian Orogen and Their Geodynamic Interpretation,” in Geodynamics, Magmatism, Metamorphism, and Mineralization (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2007), pp. 89–120 [in Russian].

    Google Scholar 

  6. G. B. Fershtater, “Tectono-Stratigraphic Zoning of the Urals and Its Magmatism,” Geotektonika, No. 6, 3–17 (1992).

  7. Yu. S. Karetin, “Tagil Trough as a Typical Eugeosynclinal Zone in the Urals,” in Types of Magmatism of the Urals (Izd. UrO AN SSSR, Sverdlovsk, 1987), pp. 62–72 [in Russian].

    Google Scholar 

  8. Yu. S. Karetin, Geology and Volcanic Complexes of the Uralian Superdeep Borehole SG-4 (Ural. Otd. Ross. Akad. Nauk, Yekaterinburg, 2000) [in Russian].

    Google Scholar 

  9. P. Montero, F. Bea, and A. Gerdes, et al., “Single-Zircon Evaporation Ages and Rb-Sr Dating of Four Major Variscan Batholiths of the Urals. A Perspective on the Timing of Deformation and Granite Generation,” Tectonophysics 317(1–2), 93–108 (2000).

    Article  Google Scholar 

  10. F. Bea, G. Fershtater, P. Montero, et al., “Recycling of Continental Crust into the Mantle as Revealed by Kytlym Dunite Zircons, Ural Mts, Russia,” Terra Nova 13, 407–412 (2001).

    Article  Google Scholar 

  11. A. N. Larionov, V. A. Andreichev, and D. G. Gee, “The Vendian Alkaline Igneous Suite of Northern Timan: Ion Microprobe U-Pb Zircon Ages of Gabbros and Syenites,” in The Neoproterozoic Timanide Orogen of Eastern Baltica, Ed. by D. G. Gee and V. L. Pease, Geol. Soc. Mem. London 30, 69–74 (2004).

  12. A. A. Krasnobaev, F. Bea, G. B. Fershtater, and P. Montero, “Age, Morphology, and Geochemical Features of Zircons from the Basic Rocks of the Urals (Ophiolites and Platinum Belt) and Associated Felsic Rocks,” in 10th Zavaritsky Readings on the Geology and Metallogeny of Ultramafic-Mafic and Granitoid Intrusive Associations of Folded Systems, Yekaterinburg, Russia, 2004 (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2004), pp. 211–216 [in Russian].

    Google Scholar 

  13. A. A. Krasnobaev, G. B. Fershtater, F. Bea, and P. O. Montero, “Geochemistry of Zircons from Gabbro and Associated Plagiogranites of the Urals,” in Applied Geochemistry. Vol. 1. Mineralogy and Geochemistry (IMGRE, Moscow, 2005), Issue 7, pp. 116–136 [in Russian].

    Google Scholar 

  14. A. A. Krasnobaev, G. B. Fershtater, F. Bea, and P. Montero, “Zircons from Magmatic Rocks of the Tagil and Magnitogorsk Zones as the Basis for Their Age and Correlation Relations,” in Ezhegodnik-2005 (Inst. Geol. Geokhim. UrO RAN, Yekaterinburg, 2006), pp. 276–283 [in Russian].

    Google Scholar 

  15. A. A. Krasnobaev, A. Bea, G. B. Fershtater, and P. Montero, “The Polychronous Nature of Zircons in Gabbroids of the Ural Platinum Belt and the Issue of the Precambrian in the Tagil Synclinorium,” Dokl. Akad. Nauk 413, 785–790 (2007) [Dokl. Earth Sci. 413, 457–461 (2007)].

    Google Scholar 

  16. G. B. Fershtater, F. Bea, E. V. Pushkarev, et al., “Insight into the Petrogenesis of the Urals Platinum Belt: New Geochemical Evidence, No. 4, 352–370 (1999) [Geochem. Int. 37, 302-319 (1999)].

  17. E. V. Pushkarev, G. B. Fershtater, F. Bea, et al., “Isotopic Rb-Sr Age of the Pseudoleucite Tilaite in the Uralian Platinum Belt,” Dokl. Akad. Nauk 388, 373–377 (2003) [Dokl. Earth Sci. 388, 97–100 (2003)].

    Google Scholar 

  18. V. S. Popov, “Geological Settings of the Formation of Dunite-Wehrlite-Clinopyroxenite Association: General and Particular Features,” in 12th Zavaritsky Readings on Ophiolites: Geology, Petrology, Metallogeny, and Geodynamics, Yekaterinburg, Russia, 2006 (Inst. Geol. Geokhim. UrO RAN, 2006), pp. 44–48.

  19. V. I. Maegov, G. A. Petrov, Yu. L. Ronkin, and O. P. Lepikhina, “First Results of Sm-Nd Isotopic Dating of Olivine-Anorthite Gabbro of the Platinum Belt of the Urals,” in 12th Zavaritsky Readings on Ophiolites: Geology, Petrology, Metallogeny, and Geodynamics, Yekaterinburg, Russia, 2006 (Inst. Geol. Geokhim. UrO RAN, 2006), pp. 110–113.

  20. E. B. Watson and T. M. Harrison, “Zircon Saturation Revised: Temperature and Composition Effects in a Variety of Crustal Magma Types,” Earth Planet. Sci. Lett. 64, 295–304 (1983).

    Article  Google Scholar 

  21. E. B. Watson, “Dissolution, Growth and Survival of Zircons during Crustal Fusion: Kinetic Principles, Geological Models and Implications for Isotopic Inheritance,” R. Soc. Edinburgh Earth Sci. Trans. 87, 43–56 (1996).

    Google Scholar 

  22. G. B. Fershtater, Petrology of Main Intrusive Associations (Nauka, Moscow, 1987) [in Russian].

    Google Scholar 

  23. O. M. Rozen and D. Z. Zhuravlev, “Isotopic-Geochemical Study of the Silurian of the Tagil Synclinorium: Riphean Oceanic Plateau in the Lower Crust of the Uralian Orogen?,” in Proceedings of 37th Tectonic Conference. Evolution of Tectonic Processes in the Earth’s History, Novosibirsk, Russia, 2004 (Izd. SO RAN, Novosibirsk, 2004), Vol. 2, pp. 111–114 [in Russian].

    Google Scholar 

  24. Eugeosynclicnal Gabbro-Granite Series, Ed. by G. B. Fershtater, L. V. Malakhova, N. S. Borodina, et al. (Nauka, Moscow, 1984) [in Russian].

    Google Scholar 

  25. G. B. Fershtater, F. Bea, P. Montero, and D. Skerrou, “Hornblende Gabbro in the Urals: Types, Geochemistry, and Petrogenesis,” Geokhimiya, No. 7, 707–728 (2004) [Geochem. Int. 42, 610–629 (2004)].

  26. G. B. Fershtater, F. Bea, N. S. Borodina, and P. Montero, “Anatexis of Basites in a Paleosubduction Zone and the Origin of Anorthosite-Plagiogranite Series of the Ural Platinum-Bearing Belt,” Geokhimiya, No. 8, 768–781 (1998) [Geochem. Int. 36, 684–697 (1998)].

  27. I. A. Malakhov and L. V. Malakhova, Nizhnii Tagil Pyroxenite-Dunite Massif and Host Rocks (UNTs AN SSSR, Sverdlovsk, 1970) [in Russian].

    Google Scholar 

  28. I. V. Semenov, V. A. Shilov, and A. M. Verkhovskii, “On the Structural and Age Relations of the Rift-Related Parallel Basaltic Dikes with Gabbro-Hyperbasite Massifs in the Platinum Belt of the Urals,” Dokl. Akad. Nauk SSSR 243, 187–190 (1978).

    Google Scholar 

  29. J. Paquin and R. Altherr, “Subduction-Related Lithium Metasomatism during Exhumation of the Alpe Arami Ultrahigh-Pressure Garnet Peridotite (Central Alps, Switzerland),” Contrib. Mineral. Petrol 143, 623–640 (2002).

    Google Scholar 

  30. L. V. Malakhova and N. S. Churilin, “Basaltoid Granitoids and Their Comagmatic Rocks in the Tagil Trough, Central Urals,” Tr. Inst. Geol. Geokhim., Akad. Nauk SSSR, Ural. Filial, No. 93, 33–75 (1972).

  31. D. S. Shteinberg, “Basaltoid Magmatism of the Eugeosynclinal Areas and Its Metallogeny,” in Problems of the Formation and Tendencies in the Localization of Gold and Platinum Deposits, Tr. TsNIGRI, No. 87, 57–73 (1970).

  32. G. B. Fershtater, “Dunite-Clinopyroxenite-Gabbro Complex of the Platinum Belt of the Urals-A Late Ordovician Subplatformal Volcanoplutonic Association,” in Magmatic Associations in the Geologic History and Structure of the Earth (UrO RAN, Sverdlovsk, 1989), pp. 55–64 [in Russian].

    Google Scholar 

  33. I. V. Chernyshov, V. A. Kononova, U. Kramm, and B. Grauert, “Isotopic Geochronology of Alkali Rocks in the Urals in Light of U-Pb Zircon Dating,” Geokhimiya, No. 3, 323–338 (1987).

  34. V. Ya. Levin, Alkaline Province of the Il’meny-Vishnevye Mountains (Nauka, Moscow, 1974) [in Russian].

    Google Scholar 

  35. V. Ya. Levin, B. M. Ronenson, V. S. Samkov, et al., Alkaline Carbonatite Complexes of the Urals (Uralgeolkom, Yekaterinburg, 1997) [in Russian].

    Google Scholar 

  36. A. A. Krasnobaev, Zircon as an Indicator of Geologic Processes (Nauka, Moscow, 1986) [in Russian].

    Google Scholar 

  37. G. B. Fershtater and E. V. Pushkarev, “Nepheline-Bearing Tilaites in the Dunite-Clinopyroxenite-Gabbro Association of the Platinum Belt of the Urals,” Izv. Akad. Nauk SSSR, Ser. Geol., No. 4, 74–84 (1992).

  38. F. Bea, G. B. Fershtater, and P. Montero, “Granitoids of the Urals: Implications for the Evolution of the Orogen,” in Mountain Building in the Uralides, Geophys. Monogr. 132, 211–232 (2002).

    Google Scholar 

  39. J. Veazer, D. Ala, K. Azmy, et al., “87Sr/86Sr, 13C and 18O Evolution of Phanerozoic Seawater,” Chem. Geol. 161, 59–88 (1999).

    Article  Google Scholar 

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Authors and Affiliations

  1. Zavaritskii Institute of Geology and Geochemistry, Ural Division, Russian Academy of Sciences, Pochtovyi per. 7, Yekaterinburg, 620151, Russia

    G. B. Fershtater, A. A. Krasnobaev & N. S. Borodina

  2. University of Granada, Granada, Spain

    F. Bea & P. Montero

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  1. G. B. Fershtater
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Correspondence to G. B. Fershtater.

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Original Russian Text © G.B. Fershtater, A.A. Krasnobaev, F. Bea, P. Montero, N.S. Borodina, 2009, published in Geokhimiya, 2009, No. 2, pp. 150–170.

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Fershtater, G.B., Krasnobaev, A.A., Bea, F. et al. Intrusive magmatism during early evolutionary stages of the Ural epioceanic orogen: U-Pb geochronology (LA ICP MS, NORDSIM, and SHRIMP II), geochemistry, and evolutionary tendencies. Geochem. Int. 47, 143–162 (2009). https://doi.org/10.1134/S0016702909020037

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