Инд. авторы:	Shelepaev R.A., Egorova V.V., Izokh A.E., Seltmann R.
Заглавие:	Collisional mafic magmatism of the fold-thrust belts framing southern Siberia (Western Sangilen, southeastern Tuva)
Библ. ссылка:	Shelepaev R.A., Egorova V.V., Izokh A.E., Seltmann R. Collisional mafic magmatism of the fold-thrust belts framing southern Siberia (Western Sangilen, southeastern Tuva) // Russian Geology and Geophysics. - 2018. - Vol.59. - Iss. 5. - P.525-540. - ISSN 1068-7971. - EISSN 1878-030X.
Идентиф-ры:	DOI: 10.1016/j.rgg.2018.04.006; РИНЦ: 35526471; SCOPUS: 2-s2.0-85046690161; WoS: 000432475000006;
Реферат:	eng: We consider geochemical features of mafic magmatism manifested during the evolution of a complex nappe-folded structure in Western Sangilen, resulted from the Cambrian-Ordovician collisional tectogenesis. There are abundant ultramafic-mafic and mafic associations of different types in this region: layered low-Ti low-alkali ultramafic-mafic intrusions, high-Ti medium-alkali gabbroids, gabbro-monzodiorite intrusions, and alkali basalts. Isotope-geochronological data showed that these complexes formed over a wide time interval, from 570 to 440 Ma. At this time, the geodynamic setting in Western Sangilen changed from an island-arc one via a collision one to an intercontinental rift setting. At the early and late stages of the evolution of Western Sangilen, the geochemical features of mafites were typical of their geodynamic settings. The properties of mafites that formed synchronously with the collision are of particular interest. The studies have shown that the chemical composition of collisional mafites of Western Sangilen changed with time. They became richer in alkalies, titanium, and incompatible elements. This fact indicates a change in the type of mantle source from suprasubductional in the Cambrian to enriched deeper-level one in the Ordovician. © 2018
Ключевые слова:	dunite-wehrlite-clinopyroxenite-gabbro, and alkali basalts; gabbro-monzodiorite; mafic magmatism; peridotite-gabbro; southern Siberia; Cambrian; clinopyroxene; collision zone; fold and thrust belt; gabbro; igneous intrusion; mafic rock; magmatism; orogeny; Tuva; Siberia; Sangilen Highland; Russian Federation; wehrlite; dunite; collisional orogen; Cambrian-Ordovician collision;
Издано:	2018
Физ. хар-ка:	с.525-540
Цитирование:	1. Berzin, N.A., Coleman, R.G., Dobretsov, N.L., Zonenshain, L.P., Xuchan, Xiao, Chang, E.Z., Geodynamic map of the western part of the Paleoasian Ocean. Geologiya i Geofizika (Russian Geology and Geophysics) 35:7-8 (1994), 8–28 (5-22). 2. Boynton, W.V., Geochemistry of the rare earth elements: meteorite studies. Henderson, P., (eds.) Rare Earth Element Geochemistry, 1984, Elsevier, New York, 63–114. 3. Buslov, M.M., Watanabe, T., Fujiwara, Y., Iwata, K., Smirnova, L.V., Safonova, I.Yu., Semakov, N.N., Kiryanova, A.P., Late Paleozoic faults of the Altai region, Central Asia: tectonic pattern and model of formation. J. Asian Earth Sci. 23:5 (2004), 655–671. 4. Dobretsov, N.L., Buslov, M.M., Late Cambrian-Ordovician tectonics and geodynamics of Central Asia. Russian Geology and Geophysics (Geologiya i Geofizika) 48:1 (2007), 71–82 (93-108). 5. Dobretsov, N.L., Buslov, M.M., Vernikovsky, V.A., Neoproterozoic to Early Ordovician evolution of the Paleo-Asian Ocean: Implications to the break-up of Rodinia. Gondwana Res. 6:2 (2003), 143–159. 6. Egorova, V.V., Volkova, N.I., Shelepaev, R.A., Izokh, A.E., The lithosphere beneath the Sangilen Plateau, Siberia: evidence from peridotite, pyroxenite and gabbro xenoliths from alkaline basalts. Mineral. Petrol. 88 (2006), 419–441. 7. Fedorvoskii, V.S., Vladimirov, A.G., Khain, E.V., Kargopolov, S.A., Gibsher, A.S., Izokh, A.E., Tectonics, metamorphism, and magmatism of collision zones of the Caledonides in Central Asia. Geotektonika No.3 (1995), 3–22. 8. Gibsher, A.S., Vladimirov, A.G., Vladimirov, V.G., Geodynamics of the Early Paleozoic thrust-and-fold structure of the Sangilen, Southeastern Tuva. Dokl. Earth Sci. 370:1 (2000), 50–53. 9. Gibsher, A.S., Malkovets, V.G., Litasov, K.D., Litasov, Yu.D., Pokhilenko, N.P., Composition of the Ordovician lithospheric mantle: Evidence from the study of peridotite xenoliths from camptonite of the Sangilen highland, central Asian fold belt. Dokl. Earth Sci. 433:1 (2010), 957–961. 10. Gibsher, A.S., Malkovets, V.G., Travin, A.V., Belousova, E.A., Sharygin, V.V., Konts, Z., The age of camptonite dikes of the Agardag alkali-basalt complex (western Sangilen): results of Ar/Ar and U/Pb dating. Russian Geology and Geophysics (Geologiya i Geofizika) 53:8 (2012), 763–775 (998-1013). 11. Gibsher, A.S., Mal'kovets, V.G., Kuzmin, D.V., Litasov, Yu.D., Bazhan, I.S., Pokhilenko, N.P., Diffusion of elements in peridotite at the contact with a pyroxene-phlogopite vein: An example of xenolith from camptonite of the Sangilen highland. Dokl. Earth Sci. 448:1 (2013), 138–142. 12. Gibsher, A.S., Malkovets, V.G., Kuz'min, D.V., Pokhilenko, N.P., Multistage metasomatic enrichment of the lithospheric mantle beneath the Sangilen highland: Evidence from contact xenoliths from camptonite dykes. Dokl. Earth Sci. 454:2 (2014), 199–203. 13. Gill, R., Igneous Rocks and Processes: a Practical Guide. 2010, Wiley-Blackwell, Chichester. 14. Gonikberg, V.E., Geologic Structure and Tectonic Nature of the Early Caledonian Margin of the Sangilen Massif in Tuva. PhD Thesis [in Russian]. Moscow. 1995. 15. Hoa, Tran Trong, Polyakov, G.V., Anh, Tran Trong, Borisenko, A.S., Izokh, A.E., Balykin, P.A., Phuong, Ngo Thi, Dung, Pham Thi, Intraplate Magmatism and Metallogeny of North Vietnam. 2016, Springer. 16. Izokh, A.E., Vladimirov, A.G., Stupakov, S.I., Magmatism in the Agardag suture zone, in: Geological and Petrological Studies of Southeastern Tuva [in Russian]. 1988, IGiG SO AN SSSR, Novosibirsk, 19–75. 17. Izokh, A.E., Polyakov, G.V., Krivenko, A.P., Bognibov, V.I., Bayarbileg, L., Gabbroid Associations in Western Mongolia [in Russian]. 1990, Nauka, Novosibirsk. 18. Izokh, A.E., Polyakov, G.V., Malkovets, V.G., Shelepaev, R.A., Travin, A.V., Litasov, Yu.D., Gibsher, A.A., The Late Ordovician age of camptonites from the Agardag complex of southeastern Tuva as an indicator of the plume-related magmatism during collision processes. Dokl. Earth Sci. 379:5 (2001), 511–514. 19. Izokh, A.E., Shelepaev, R.A., Egorova, V.V., Evolution of mafic magmatism in the Altai-Sayan folded area at the Cambrian-Ordovician collision stage (by the example of Western Sangilen), in: Fundamental Problems of Geology and Tectonics of Northern Eurasia. Abstracts of Conference [in Russian]. 2001, Izd. SO RAN, Filial “Geo” Novosibirsk, 24–26. 20. Kerrich, R., Wyman, D.A., Review of development in trace-element fingerprinting of geodynamic setting and their implication for mineral exploration. Australian J. Earth Sci. 44 (1997), 465–487. 21. Khain, E.V., Amelin, Yu.V., Izokh, A.E., Sm-Nd data on the age of ultramafic-mafic complexes in the obduction zone of western Mongolia. Dokl. Akad. Nauk 341:6 (1995), 791–796. 22. Khain, E.V., Bibikova, E.V., Dushin, V.A., Fedotova, A.A., Remizov, D.N., Ancient ophiolites and island-arc complexes of the Ural-Mongolian belt and problem of the early stages of evolution of the Uralian margin of the Paleoasian Ocean. Geology, Geochemistry, and Geophysics at the turn of the 21st century Tectonics, Stratigraphy, and Lithology [in Russian], Vol. 1, 2002, Svyaz’-Print, Moscow, 110–112. 23. Kovalenko, V.I., Yarmolyuk, V.V., Kovach, V.P., Kotov, A.B., Kozakov, I.K., Salnikova, E.B., Larin, A.M., Isotope provinces, mechanisms of generation and sources of the continental crust in the Central Asian mobile belt: geological and isotopic evidence. J. Asian Earth Sci. 23:5 (2004), 605–627. 24. Kozakov, I.K., Salnikova, E.B., Bibikova, E.V., Kirnozova, T.I., Kotov, A.B., Kovach, V.P., The polychronous evolution of Paleozoic granitoid magmatism in the Tuva-Mongolian massif: results of U-Pb geochronological studies. Petrologiya 7:6 (1999), 631–643. 25. Kozakov, I.K., Kotov, A.B., Salnikova, E.B., Kovach, V.P., Natman, A., Bibikova, E.V., Kirnozova, T.I., Todt, W., Kroner, A., Yakovleva, S.Z., Lebedev, V.I., Sugorakova, A.M., Timing of the structural evolution of metamorphic rocks in the Tuva-Mongolian massif. Geotectonics 35:3 (2001), 165–184. 26. Kuzmichev, A.B., Tectonic History of the Tuva-Mongolian massif: Early Baikalian, Late Baikalian, and Early Caledonian Stages [in Russian]. 2004, Probel-2000, Moscow. 27. Kuzmichev, A.B., Bibikova, E.V., Zhuravlev, D.Z., Neoproterozoic (800 Ma) orogeny in the Tuva-Mongolian Massif (Siberia): island arc-continent collision at the northeast Rodinia margin. Precambrian Res 110:1-4 (2001), 109–126. 28. Kuznetsov, Yu.A., Selected Works, Vol. 2: Major Types of Igneous Associations [in Russian]. 1989, Nauka, Novosibirsk. 29. Lavrenchuk, A.V., Sklyarov, E.V., Izokh, A.E., Kotov, A.B., Salnikova, E.B., Fedorovsky, V.S., Mazukabzov, A.M., Compositions of gabbro intrusions in the Krestovsky zone (western Baikal region): A record of plume-suprasubduction mantle interaction. Russian Geology and Geophysics (Geologiya i Geofizika) 58:10 (2017), 1139–1153 (1439-1458). 30. Leake, B.E., Wooley, A.R., Alps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kish, H.J., Krivovichev, V.G., Linthout, K., Laird, K., Mandarino, J.A., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., Youzhi, G., Nomenclature of amphiboles: report of the Subcommittee on Amphiboles of the International Mineralogical Association, Commission on New Minerals and Mineral Names. Can. Mineral. 35 (1997), 219–246. 31. Miller, C., Schuster, R., Klotzli, U., Frank, W., Purtscheller, F., Post-collisional potassic and ultrapotassic magmatism in SW Tibet: Geochemical and Sr-Nd-Pb-O isotopic constraints for mantle source characteristics and petrogenesis. J. Petrol. 40:9 (1999), 1399–1424. 32. Morimoto, N., Nomenclature of pyroxenes (International Mineralogical Association). Am. Mineral. 73 (1988), 1123–1133. 33. Mossakovskii, A.A., Ruzhentsev, S.V., Samygin, S.G., Kheraskova, T.N., Central Asian fold belt: geodynamic evolution and history of formation. Geotectonics 6 (1993), 3–33. 34. Parfenov, L.M., Khanchuk, A.I., Badarch, G., Miller, R.J., Naumova, V.V., Nokleberg, W.J., Ogasawara, M., Prokopiev, A.V., Yan, H., Geodynamics Map of Northeast Asia. U.S. Geological Survey Scientific Investigations Map 3024, 2003. 35. Pearce, J.A., Cann, J.R., Tectonic setting of basic volcanic rocks determined using trace elements geochemistry of associated igneous host rocks. Geol. Soc. Spec. Publ. 19 (1973), 290–300. 36. Petrova, A.Yu., Rb-Sr Isotope System of Metamorphic and Igneous Rocks in Western Sangilen (Southeastern Tuva). PhD Thesis [in Russian]. Moscow. 2001. 37. Petrova, A.Yu., Kostitsyn, Yu.A., The age of high-gradient metamorphism and granite formation in Western Sangilen. Geokhimiya No. 3 (1997), 343–347. 38. Pfander, J.A., Klaus, P.J., Kozakov, I., Kroner, A., Todt, W., Coupled evolution of back-arc and island arc-like mafic crust in the late Neoproterozoic Agardagh Tes-Chem ophiolite, Central Asia: evidence from trace element and Sr-Nd-Pb isotope data. Contrib. Mineral. Petrol. 143 (2002), 154–174. 39. Simonov, V.A., Petrogenesis of Ophiolites: Thermobarogeochemical Studies [in Russian]. 1993, OIGGM SO RAN, Novosibirsk. 40. Simonov, V.A., Dril, S.I., Kuz'min, M.I., Evolution of mantle basaltic melts in the Woodlark back-arc basin (Pacific). Dokl. Akad. Nauk 368:3 (1999), 388–391. 41. Sun, S.S., McDonough, W.F., Chemical and isotopic systematics of oceanic basalts: implications for mantle compositions and processes. Saunders, A.D., Norry, M.J., (eds.) Magmatism in Ocean Basins Geol. Soc. Spec. Publ., 42, 1989, 313–345. 42. Velinskii, V.V., Vartanova, N.S., New data about the age of the ultrabasites of Tuva. Geologiya i Geofizika (Soviet Geology and Geophysics) 19:8 (1978), 133–136 (110-112). 43. Vladimirov, A.G., Gibsher, A.S., Izokh, A.E., Rudnev, S.N., Early Paleozoic granitoid batholiths in Central Asia: scales, sources, and geodynamic settings of formation. Dokl. Akad. Nauk 369:6 (1999), 795–798. 44. Vladimirov, V.G., Vladimirov, A.G., Gibsher, A.S., Travin, A.V., Rudnev, S.N., Shemelina, I.V., Barabash, N.V., Savinykh, Ya.V., Model of the tectonometamorphic evolution for the Sangilen block (southeastern Tuva, Central Asia) as a reflection of the Early Caledonian accretion-collision tectogenesis. Dokl. Earth Sci. 405:8 (2005), 1159–1165. 45. Volokhov, I.M., Ivanov, I.M., Obolenskaya, R.V., The Karashat mafic-ultramafic pluton, one more gabbro-pyroxenite-dunite association in Tuva. Problems of Magmatic Geology [in Russian], 1973, Nauka, Novosibirsk, 61–87. 46. Wilson, M., Igneous Petrogenesis: A Global Approach. 1989, Unwin Hyman Dostal, London.