Abstract
In this paper, we present data on major and trace elements in highly metamorphosed mafic rocks from the granulite-gneiss complex of the Angara-Kan block (southwestern Siberian craton), identify igneous protoliths of the metabasites, and assess the mobility of elements during metamorphism. Two types of rocks with different geologic relations and compositions were recognized. Garnet-bearing two-pyroxene granulites (Cpx + Pl + Grt + Opx) occur as sheet- and boudin-like bodies, which were folded and deformed with their host paragneisses. Dikes, which in most cases underwent only brittle deformation, are composed of metabasites characterized by the assemblage Cpx + Hbl + Pl + Grt. The major element compositions of igneous protoliths for the mafic granulites and metabasite dykes correspond to variously differentiated basaltic magmas. The protoliths of the metabasites are depleted in K2O, LILE, Zr, Nb, and LREE and were derived from a depleted mantle source. The major and trace element compositions of the dike metabasites are similar to those of low-K tholeiitic basalts of oceanic island arcs. Continental intraplate basalts derived from an enriched mantle source are possible igneous protoliths for the mafic granulites enriched in Ba, LREE, Nb, Ta, Zr, and Hf. It is assumed that lower Rb, Th, and U contents in the mafic granulites compared with continental flood basalts, high K/Rb and La/Th, and moderate Th/U ratios reflect the loss of Rb, Th and U during granulite-facies metamorphism.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
R. L. Rudnick, S. M. McLennan, and S. R. Taylor, “Large ion lithophile elements in rocks from high-pressure granulite facies terrains,” Geochim. Cosmochim. Acta 49, 1645–1655 (1985).
C. A. Smith, D. D. Van Reenen, T. V. Gerya, D. A. Varlamov, and A. V. Fed’kin, “Structural-metamorphic evolution of the southern Yenisey Range of eastern Siberia: implications for the emplacement of the Kanskiy granulite complex,” Mineral. Petrol. 69, 35–67 (2000).
A. D. Nozhkin and O. M. Turkina, Geochemistry of Granulites (OIGGiM SO RAN, Novosibirsk, 1993) [in Russian].
A. D. Nozhkin, N. V. Dmitrieva, O. M. Turkina, A. V. Maslov, and Yu. L. Ronkin, “Lower Precambrian metapelites of the Yenisei Range: REE systematics, provenances, paleogeodynamics,” Dokl. Earth Sci. 434(2), 1390–1395 (2010).
O. M. Turkina, N. G. Berezhnaya, E. N. Lepekhina, and I. N. Kapitonov, “Age of mafic granulites from the Early Precambrian metamorphic complex of the Angara-Kan Terrain (southwestern Siberian Craton): U-Pb and Lu-Hf isotope and REE composition of zircon,” Dokl. Earth Sci. 445(2), 986–993 (2012).
A. D. Nozhkin, O. M. Turkina, and T. B. Bayanova, “Paleoproterozoic collisional and intraplate granitoids of the southwest margin of the Siberian Craton: Petrogeochemical features and U-Pb geochronological and Sm-Nd isotopic data,” Dokl. Earth Sci. 428(7), 1192–1197 (2009).
L. N. Urmantseva, O. M. Turkina, and A. N. Larionov, “Metasedimentary rocks of the Angara-Kan granulite-gneiss block (Yenisey Ridge, south-western margin of the Siberian Craton): Provenance characteristics, deposition and age,” J. Asian Earth Sci. 49, 7–19 (2012).
L. L. Perchuk, T. V. Gerya, and A. D. Nozhkin, “Petrology and retrogression in granulites of the Kanskiy Formation, Yenisey Range, eastern Siberia,” J. Metamorph. Geol. 7, 599–617 (1989).
J. M. Ferry and E. B. Watson, “New thermodynamic models and revised calibrations for the Ti-in-zircon and Zr-in-rutile thermometers,” Contrib. Mineral. Petrol. 154, 429–437 (2007).
W. V. Boynton, “Cosmochemistry of the rare earth elements: Meteorite studies,” in Rare Earth Element Geochemistry (Elsevier, Amsterdam, 1984), pp. 63–114.
S. S. Sun and W. F. McDonough, “Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes,” in Magmatism in the Oceanic Basins, Ed. by A. D. Saunders and M. J. Norry, Geol. Soc. London, Spec. Publ. 42, 313–345 (1989).
J. A. Pearce, P. E. Baker, P. K. Harvey, and I. W. Luff, “Geochemical evidence for subduction fluxes, mantle melting and fractional crystallization beneath the South Sandwich island arc,” J. Petrol. 36, 1073–1109 (1995).
K. C. Condie, B. A. Frey, and R. Kerrich, “The 1.75-Ga Iron King volcanics in west-central Arizona: A remnant of an accreted oceanic plateau derived from a mantle plume with a deep depleted component,” Lithos 64, 49–62 (2002).
F. Jourdan, H. Bertrand, U. Scharer, J. Blitchert-Toft, G. Feraud, and A. B. Kampunzu, “Major and trace element and Sr, Nd, Hf, and Pb isotope compositions of the Karoo Large Igneous Province, Botswana-Zimbabwe: lithosphere vs mantle plume contribution,” J. Petrol. 48, 1043–1077 (2007).
X.-L. Huang, Y.-G. Xu, and D.-Y. Liu, “Geochronology, petrology and geochemistry of the granulite xenolites from Nushan, East China: implication for a heterogeneous lower crust beneath the Sino-Korean Craton,” Geochim. Cosmochim. Acta 68, 127–149 (2004).
R. L. Rudnick and S. Gao, “Composition of the Continental Crust,” in Thesaurus of Geochemistry (Elsevier, Oxford, 2003), Vol. 3, pp. 1–64.
D. M. Shaw, “A review of K-Rb fractionation trends by covariance analysis,” Geochim. Cosmochim. Acta 32, 573–601 (1968).
J. Ludden, L. Gelinas, and P. Trudel, “Archean metavolcanics from the Rouyn-Noranda district, Abitibi Greenstone Belt, Quebec. 2. Mobility of trace elements and petrogenetic constraints,” Can. J. Earth Sci. 19, 2276–2287 (1982).
R. Kerrich and D. A. Wyman, “Review of developments in trace-element fingerprinting of geodynamic settings and their implications for mineral exploration,” Aust. J. Earth Sci. 44, 465–487 (1997).
K. Condie, “High field strength element ratios in Archean basalts: A window to evolving sources of mantle plumes?,” Lithos 79, 491–504 (2005).
M. T. McCulloch and J. A. Gamble, “Geochemical and geodynamial constraints on subduction zone magmatism,” Earth Planet. Sci. Lett. 102, 358–374 (1991).
J. B. Whalen, J. A. Percival, V. J. McNicoll, and F. J. Longstaffe, “Intra-oceanic production of continental crust in a Th-depleted ca. 3.0 Ga arc complex, Western Superior Province, Canada,” Contrib. Mineral. Petrol. 146, 78–99 (2003).
S. R. Taylor and S. M. McLennan, Continental Crust: Its Composition and Evolution (Blackwell, Oxford, 1985).
H. Becker, K. P. Jochum, and R. W. Carlson, “Trace element fractionation during dehydration of eclogites from high-pressure terranes and implications for element fluxes in subduction zones,” Chem. Geol. 163, 65–99 (2000).
A. A. Shchipanskii, Archean Zones of Convergent Plates, Island-Arc Systems, and Eclogites. Geodynamics of the Early Earth (Nauchnyi mir, Moscow, 2008) [in Russian].
O. M. Turkina, “Geochemistry of granulites of the Sharuzhalgai salient of the Siberian Platform (Arban Massif),” Geol. Geofiz. 42(5), 815–830 (2001).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © O.M. Turkina, A.D. Nozhkin, 2014, published in Geokhimiya, 2014, No. 10, pp. 892–906.
Rights and permissions
About this article
Cite this article
Turkina, O.M., Nozhkin, A.D. Geochemistry and origin of metabasites from the granulite-gneiss complex of the Angara-Kan block, southwestern Siberian craton. Geochem. Int. 52, 829–841 (2014). https://doi.org/10.1134/S0016702914100097
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0016702914100097