Кнопка
Bibliography
UDC 548.7+551.7+552.5+550.4
https://doi.org/10.26516/2541-9641.2022.2.61

207Pb–206Pb age of sources of Late Cenozoic volcanic rocks of the crust-mantle transition in relation to the age of ophiolites and ancient blocks exposed on the surface of the crust: transect Kitoi–Baydrag of the Baikal-Mongolian region



Authors


I.S. Chuvashova 1,2, S.V. Rasskazov 1,2, E.V. Saranina 1,3


1Institute of the Earth's Crust SB RAS, Irkutsk, Russia

2Irkutsk State University, Irkutsk, Russia

3 Institute of Geochemistry, Russian Academy of Sciences, A.P. Vinogradov SB RAS, Irkutsk, Russia



About the Authors


Chuvashova Irina Sergeevna,

candidate of geological and mineralogical sciences

664003 Irkutsk, st. Lenina, d. 3,

Irkutsk State University, Faculty of Geology,

assistant professor,

664033 Irkutsk, st. Lermontova, d. 128, Institute of the Earth's Crust SB RAS,

Senior Researcher,

tel.: (3952) 51–16–59,

еmail: chuvashova@crust.irk.ru.


Rasskazov Sergei Vasilievich,

doctor of geological and mineralogical sciences, professor,

664003 Irkutsk, st. Lenina, 3,

Irkutsk State University, Faculty of Geology,

Head of the Department of Dynamic Geology,

664033 Irkutsk, st. Lermontova, 128, Institute of the Earth's Crust SB RAS,

Head of the Laboratory of Isotopy and Geochronology,

tel.: (3952) 51–16–59,

еmail: rassk@crust.irk.ru.


Saranina Elena Vladimirovna,,

candidate of geological and mineralogical sciences,

664033 Irkutsk, st. Lermontova, 128, Institute of the Earth's Crust SB RAS,

Lead Engineer,

tel.: (3952) 51–16–59.



Abstract. The results of determinations of Pb isotope ratios in Late Cenozoic volcanic rocks of the southwestern part of the Baikal rift system along the Kitoi-Baidrag transect are presented. The obtained 207Pb–206Pb estimates of the restite material incubation time in the springs are in good agreement with the Precambrian dating of ensembles of ancient continental blocks and ophiolite belts exposed on the Earth's surface. The sources are distinguished along the transect: the ancient Gargan block of the Tuva-Mongolian microcontinent (massif) with the Hadean protolith and Archean-Neoproterozoic events; Khangai and, possibly, Dzhida-Khangai slabs, and the ancient Baidrag block, a fragment of the Tarbagatai-Dzabkhan microcontinent. According by the dating of the sources, the tectonosphere of the early and middle mantle geodynamic epochs in the Baikal-Mongolian region included 3 layers: lower (proto-mantle), middle (mantle evolved), and upper (crust-mantle transition, CMP). In the Khangai continental domain, the protoliths of a wide Precambrian age range of sources were generally modified about 660 Ma ago. At the end of the Neoproterozoic and in the Early-Middle Phanerozoic, the mantle stabilized against the background of transformations of the ILC zone. In the tectonosphere of the latest geodynamic stage, the processes of transformation of three layers became active again: the proto-mantle, the evolved mantle, and the IMF.


Keywords: сonvergence, 207Pb–206Pb dating, volcanic rocks, ophiolites, Hadean, Archean, Proterozoic, Cenozoic.



P. 61–90



References


Ailo Yu., Rasskazov S.V., Chuvashova I.S., Yasnygina T.A. Olivin as an indicator of polygenetic association of inclusions in the late Cainozoic volcanic rocks of the Tunka Valley, Baikal Rift Zone // Lithosphere. 2021a. V. 21, No. 4. P. 517–545.

Ailo Yu., Rasskazov S.V., Yasnygina T.A., Chuvashova I.S. Nakhodka Fe–Si inclusions in deep nodules from trachybasalts of the Karierny volcano (Tunkinskaya valley of the Baikal rift system) and its significance for understanding the origin of ferruginous quartzites of the event of the Great Oxidation // XIII All-Russian Petrographic Meeting (with the participation of foreign scientists) "Petrology and geodynamics of geological processes". 06–13 September. Irkutsk: IGH SB RAS and IZK SB RAS. 2021b. P. 18–23.

Anisimova I.V., Kozakov I.K., Yarmolyuk V.V. et al. Anorthosites of the Precambrian terranes of the CASP - age, sources and geological position (on the example of the Khunzhilingol massif of Central Mongolia) // Doklady AN. 2009. V. 428, No. 1. P. 80–86.

Belichenko V.G. Paleotectonic zoning of the paleozoid of the south-eastern part of the Eastern Sayan, Western Khamar-Daban and Prikhubsugulya // Geology and geophysics. 1985. No. 5. P. 11–20.

Belichenko V.G., Geletiy N.K., Barash I.G. Barguzinsky microcontinent (Baikal mountain region): to the problem of isolation // Geology and geophysics. 2006. V. 47, No. 10. P. 1049–1059.

Gordienko I.V. The role of acute-water-oceanic, collision and intraplate magmatism in the formation of the continental crust of the Mongol-Transbaikal region: according to structural-geological, geochronological and Sm–Nd isotopic data // Geodynamics and tectonophysics. 2021. V. 12, No. 1. P. 1–47. doi:10.5800/GT-2021-12-1-0510

Gordienko I., Gorokhovsky D., Elbaev A., Bayanova T. New data on the age of the early Paleozoic gabbroid and granitoid magmatism of the Dzhidinskaya zone of caledonides (Yugo-Zapadnoe Zabaikalye, Severnaya Mongolia) // Doklady AN. 2015. V. 463, No. 5. P. 576–576.

Dobretsov N.L., Belichenko V.G., Boos R.G. et al. Geology and ore content of the Eastern Sayan. Novosibirsk: Nauka. Sib. otd-niye, 1989. 127 p. E

lbaev A., Gordienko I., Bayanova T., Gorokhovsky D., Orsoev D., Badmatsyrenova R., Zarubina O. U–Pb-age and geochemical features of ultramafit-mafits of the ophiolite association of the Dzhidinskaya zone (South-Western Transbaikalia) // Doklady akademii nauk. 2018. V. 478, No. 4. P. 452–455.

Ilyin A.V. About the Tuvino-Mongol massif. Materials on regional geology of Africa and foreign Asia. M.: Nedra. 1971. P. 67–73. (Tr. Research Institute "Zarubezhgeologiya", v. 22).

Kovalenko V.I., Yarmolyuk V.V., Kovach V.P., Kotov A.B., Kozakov I.K., Salnikova E.B. Sources of Phanerozoic granitoids of Central Asia: Sm–Nd-isotopic data // Geochemistry. 1996. No. 8. P. 699–712.

Kovalenko V.I., Yarmolyuk V.V., Kovach V.P., Salnikova E.B. Magmatism and geodynamics of early Caledonian structures of the Central Asian folded belt (isotopic and geological data) // Geology and geophysics. 2003. V. 44, No. 3. P. 1280–1293.

Kovach V.P., Yarmolyuk V.V., Kozakov I.K., Terentyeva L.B., Lebedev V.I., Kovalenko V.I. Magmatism and geodynamics of early stages of formation of the Paleo-Asiatic Ocean: geological and geochemical data of ophiolites of the Bayan-Khongorskaya zone // Doklady AN. 2005. V. 404, No. 2. P. 229–234.

Kozakov I.K., Anisimova I.V., Salnikova E.B., Larin A.M., Kovach V.P., Plotkina Yu.V., Fedoseenko A.M. Anortozites of the Olonkhuduk massif of the Baydarik terrein of the Central Asian folded belt: geological position, age // Petrology. 2020. V. 28, No. 2. P. 139–149. DOI: 10.31857/S0869590320020041

Kozakov I.K., Kozlovsky A.M., Yarmolyuk V.V., Kovach V.P., Bibikova E.V., Kirnozova T.I., Plotkina Yu.V., Zagornaya N.Yu., Fugzan M.M., Erdenezhargal Ch., Lebedev V.I., Enzhin G. Crystal complexes of the Tarbagatai block of the early Caledonian superterrane of Central Asia // Petrology. 2011. V. 19, No. 4. P. 445–464.

Kozakov I.K., Kuznetsov A.B., Erdenezhargal Ch. et al. Neoproterozoic complexes of the foundation of the shelf cover of the Dzabkhansky terrein of the eastern segment of the CASP // Stratigraphy. Geological correlation. 2017. V. 25, No. 5. P. 3–16.

Kozakov I.K., Salnikova E.B., Wong T. et al. Crystalline complexes of the lower Precambrian of the Dzabkhan microcontinent of Central Asia: age, sources, tectonic position // Stratigraphy. Geological correlation. 2007. V. 15, No. 2. P. 3–24.

Maslov A.V., Podkovyrov V.N. Redox-status of the ocean 2500–500 million years ago: modern representations // Lithology and minerals. 2018. No. 3. P. 207–231.

Mitrofanov F.P., Kozakov I.K., Palie I.P. Dokembrian of Western Mongolia and Southern Tuva. L.: Nauka, 1981. 156 p.

Parfenov L.M. Problems of tectonics mongolo-Okhotsk orogennogo belt // Pacific geology. 1999. V. 18, No. 5. P. 24–43.

Parfenov L.M., Popeko L.I., Tomurtogoo O. Model of formation of orogenic belts of Central and North-East Asia // Pacific Geology. 2003. V. 22, No. 2. P. 7–41.

Pinus G.V., Agafonov L.V., Lesnov F.P. Alpinotyp hyperbasites of Mongolia. M.: Nauka, 1984. 200 p.

Rasskazov S.V., Chuvashova I.S. Volcanism and transtension in the north-east of the Baikal rift system. Novosibirsk: Akademicheskie izd-vo «Geo», 2018. 383 p.

Rasskazov S.V., Bogdanov G.V., Medvedeva T.I. Xenoliths of skarn-like clinopyroxenites from basalts of the Tunka depression of the Baikal rift zone // Geology and geophysics. 1989. No. 7. P. 54–61.

Rasskazov S.V., Menshagin Yu.V., Yasnygina T.A., Ilyasova A.M., Saranina E.V., Skopintsev V.G. Khushagolsky polychronnyi massif: heterogeneity of sources of paleozoic alkaline syenites and granites in the Eastern Sayan, South of Siberia // Lithosphere. 2013a. No. 4. P. 88–109.

Rasskazov S.V., Kunk M.J., Luhr J.F., Bauring S.A., Brandt I.S., Brandt S.B., Ivanov A.V. Episodes of eruptions and variations in the composition of quaternary lavas of the Baikal rift system (Ar–Ar and K–Ar dating of volcanism of the Jida basin) // Geology and geophysics. 1996. V. 37, No. 6. P. 3–15.

Rasskazov S.V., Saranina E.V., Logachev N.A., Ivanov A.V., Demonterova E.I., Maslovskaya M.N., Brandt S.B. Mantle anomaly DUPAL of the Tuvino-Mongolian massif and its paleogeodynamic significance // Doklady AN. 2002. V. 382, No. 1. P. 110–114.

Rasskazov S.V., Chuvashova I.S., Yasnygina T.A., Fefelov N.N., Saranina E.V. Potassium and Kalinatra volcanic series in the Cenozoic of Asia. Novosibirsk: Akademicheskie izd-vo «GEO», 2012. 351 p.

Rasskazov S.V., Yasnygina T.A., Chuvashova I.S., Mikheeva E.A., Snopkov S.V. Kultuk volcano: spatio-temporal change of magmatic sources at the western end of the South Baikal depression in the interval 18–12 million years ago // Geodynamics and tectonophysics. 2013b. V. 4, No. 2. P. 135–168. doi:10.5800/GT2013420095

Terentyeva L.B., Kozakov I.K., Yarmolyuk V.V., Anisimova L.V., Kozlovsky A.M., Kudryashova E.A., Salnikova E.B., Yakovleva S.Z., FedoseenkoA.M., Plotkina Yu.V. Convergent processes in the evolution of the Early Caledonids of the Bayan-Khongor zone of Central Asia: geological and geochronological studies of Khan-Ulinsky gabbroid pluton // Doklady AN. 2010. V. 433, No. 2. P. 237–243.

Khain E.V., Neimark L.A., Amelin Yu.V. Caledonian stage of remobilization of the Precambrian foundation of the Gargan block, Eastern Sayan (isotopic-geochronological data) // Doklady RAN. 1995. V. 342, No. 6. P. 776–780.

Chuvashova I.S., Rasskazov S.V. Sources of magmatism in the mantle of the evolving Earth. Irkutsk: Izd-vo ISU, 2014. 291 p. Yarmolyuk V.V., Kovalenko V.I. Geodynamic settings of the formation of batholiths in the Central Asian folded belt // Geology and geophysics. 2003. V. 44, No. 12. A. 1305–1320.

Allégre C. Limitation on the mass exchange between the upper and lower mantle: the evolving convection regime of the Earth // Earth and Planetary Science Letters. 1997. V. 150. P. 1–6.

Allégre C.J. The evolution of mantle mixing // Phil. Trans. R. Soc. Lond. A. 2002. V. 360. P. 2411–2431. Doi: 10.1098/rsta.2002.1075.

Bazhenov M.L., Kozlovsky A.M., Yarmolyuk V.V., Fedorova N.M., Meert J.G. Late Paleozoic paleomagnetism of South Mongolia: Exploring relationships between Siberia, Mongolia and North China // Gondwana Research. 2016. V. 40. P. 124–141.

Bindeman I.N., Bekker A., Zakharov D.O. Oxygen isotope perspective on crustal evolution on early Earth: Arecord of Precambrian shales with emphasis on Paleoproterozoic glaciations and Great Oxygenation Event // Earth and Planetary Science Letters. 2016. V. 437. P. 101–113.

Buriánek D., Schulmann K., Hrdličková K., Han žl P., Janou šek V., Gerdes A., Lexa O. Geochemical and geochronological constraints on distinct Early-Neoproterozoic and Cambrian accretionary events along southern margin of the Baydrag Continent in western Mongolia // Gondwana Research. 2017. V. 47. P. 200–227.

Demoux D., Kröner A., Badarch G., Jian P., Tomurhuu D., Michael T.D.W. Geochronological constraints on Cambrian accretion-related magmatism in central Mongolia: evidence from the Bayankhongor and Baydrag terrains // Journal of Geology. 2009. V. 117. P. 377–397. Doe B.R. Lead isotopes. Springer-Verlag, Berlin, 1970. 137 p.

Eguchi J., Seales J., Dasgupta R. Great Oxidation and Lomagundi events linked by deep cycling and enhanced degassing of carbon // Nature Geoscience. 2020. V. 13. P. 71–76.

Gao R., Hou H., Cai X., Knapp J.H., He R., Liu J., Xiong X., Guan Y., Li W., Zeng L., Roecker S.W. Fine crustal structure beneath the junction of the southwest Tian Shan and Tarim Basin, NW China // Comparative evolution of past and present accretionary orogens: Central Asia and the circum-Pacific / R. Hall, B.-M. Jahn, J.Wakabayashi, W. Xiao (eds.). Lithosphere GSA Data Repository Item 2013224. Geological Society of America, 2013. doi: 10.1130/L248.1

Gibsher A.S., Khain E.V., Kotov A.B., Salnikova E.V., Kozakov I.K., Kovach V.P., Yakovleva S.Z., Fedorenko A.M. Late Vendian age of the Han–Taishiri ophiolite complex in western Mongolia // Russ. Geol. Geophys. 2001. V. 42. P. 1110–1117.

Jian P., Kröner A., Jahn B.M., Windley B. F., Shi Y., Zhang F., Miao L., Tomurhuu D., Zhang W., Liu D. Zircon dating of Neoproterozoic and Cambrian ophiolites in West Mongolia and implications for the timing of orogenic processes in the central part of the Central Asian Orogenic Belt // Earth-Science Reviews. 2014. V. 133. P. 62–93.

Jian P., Kröner A., Windley B.F., Shi Y., Zhang W., Miao L., Tojurhuu D., Zhang W., Liu D. Zircon ages of the Bayankhongor ophiolite mélange and associated rocks: time constraints on Neoproterozoic to Cambrian accretionary and collisional orogenesis in Central Mongolia // Precambrian Research. 2010. V. 177. P. 162–180.

Harris N.R. Isotopic, geochemical, and geochronological constraints on the origin and evolution of Cenozoic volcanism, Baikal Rift Zone, Siberia. Cambridge: PH dissertation, USA, Massachusetts Institute of Technology, 1998. 440 p.

Hart S.R., Gaetani G.A. Mantle paradoxes: the sulfide solution // Contrib. Mineral. Petrol. 2006. V. 152. P. 295–308. Hawkesworth C., Cawood P.A., Dhuime B. Rates of generation and growth of the continental crust // Geoscience Frontiers. 2019. V. 10. P. 165–173. https://doi.org/10.1016/j.gsf.2018.02.004

Kepezhinskas P.K., Kepezhinskas K.B., Pukhtel I.S. Lower Paleozoic oceanic crust in Mongolian Caledonides: Sm–Nd isotope and trace element data // Geophysical Research Letters. 1991. V. 18. P. 1301–1304.

Khain E.V., Bibikova E.V., Kröner A., Zhuravlev D.Z., Sklyarov E.V., Fedotova A.A., Kravchenko-Berezhnoy I.R. The most ancient ophiolite of the Central Asian fold belt: U–Pb and Pb–Pb zircon ages for the Dunzhugur Complex, Eastern Sayan, Siberia, and geodynamic implications // Earth Planet. Sci. Lett. 2002. V. 199. P. 311–325.

Kiseleva O., Zhmodik S. PGE mineralization and melt composition of chromitites in Proterozoic ophiolite complexes of Eastern Sayan, Southern Siberia. // Geosci. Front. 2017. V. 8. P. 721–731. doi:10.1016/j.gsf.2016.04.003.

Kiseleva O.N., Airiyants E.V., Dmitriy K. Belyanin D.K., Zhmodik S.M., Ashchepkov I.V., Kovalev S.A. Multistage magmatism in ophiolites and associated metavolcanites of the Ulan-Sar’dag mélange (East Sayan, Russia) // Minerals. 2020. V. 10. P. 1077.

Kotov A.B., Kozakov I.K., Bibikova E.V. Duration of regional metamorphic episodes in areas of polycyclic endogenic processes: a U–Pb geochronological study // Journal of Petrology. 1995. V. 3. P. 567–575.

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 // Journal of Asian Earth Sciences. 2004. V. 23. P. 605.

Kozakov I.K., Kotov A.B., Salnikova E.B., Kovach V.P., Nutman A.P., Bibikova T.I., Kirnozova T.I., Todt W., Kröner A., Yakovleva S.Z., Lebedev V.I., Sugorakova A.M. Timing of the structure evolution of metamorphic rocks in the Tuva-Mongolian Massif // Geotectonics. 2001. V. 35. P. 165–184.

Kozakov I.K., Salnikova E.B., Khain E.V., Kovach V.P., Berezhnaya N.G., Yakovleva N.G., Plotkina Y.V. Early Caledonian crystalline rocks of the Lake zone, Mongolia: stages and tectonic environments as deduced from U–Pb and Sm–Nd isotopic data // Geotectonics. 2002. V. 36. P. 156–166.

Kusky T.M., Polat A., Windley B.F., Burke K.C., Dewey J.F., Kidd W.S.F., Maruyama S., Wang J.P., Deng H., Wang Z.S., Wang C., Fu D., Li X.W., Peng H.T. Insights into the tectonic evolution of the North China Craton through comparative tectonic analysis: a record of outward growth of Precambrian continents // Earth Sci. Rev. 2016. V. 162. P. 387–432. https://doi.org/10.1016/j.earscirev.2016.09.002.

Kuzmichev A.B. The Central Asian Fold Belt. Geology, Evolution, Tectonics and Models. / Kröner A. (Ed.). Burntraeger Science Publisher: Studgart, Germany, 2015. 200 р.

Kuzmichev A.B., Larionov A.N. Neoproterozoic island arcs of East Sayan: Duration of magmatism (from U–Pb zircon dating of volcanic clastics) // Russ. Geol. Geophys. 2013. V. 54. P. 34–43.

Kuzmichev A., Kröner A., Hegner E., Liu D.Y., Wan Y.S. The Shishkhid ophiolite, northern Mongolia: A key to the reconstruction of a Neoproterozoic island-arc system in Central Asia // Precambrian Res. 2005. V. 138. P. 125–150.

Levashova N.M., Kalugin V.M., Gibsher A.S., Jessica Yff, Ryabinin A.B., Meert J.G., Malone S.J. The origin of the Baydaric microcontinent, Mongolia: Constraints from paleomagnetism and geochronology // Tectonophysics. 2010. V. 485, P. 306–320.

Li Z.W., Roecker S., Li Z.H., Wei B., Wang H., Schelochkov G., Bragin V. Tomographic image of the crust and upper mantle beneath the western Tien Shan from the MANAS broadband deployment: Possible evidence for lithospheric delamination // Tectonophysics. 2009. V. 477 (1-2). P. 49–57.

Rasskazov S., Taniguchi H. Magmatic response to the Late Phanerozoic plate subduction beneath East Asia / CNEAS Monograph Series No. 21. Tohoku University, Japan, 2006. 156 p.

Rasskazov S.V. Brandt S.B., Brandt I.S. Radiogenic isotopes in geologic processes. Springer, 2010. 306 p.

Rasskazov S., Chuvashova I., Yasnygina T., Saranina E. Mantle evolution of Asia inferred from Pb isotopic signatures of sources for Late Phanerozoic volcanic rocks // Minerals. 2020а. V. 10, No. 9. P. 739. doi:10.3390/min10090739

Rasskazov S., Sun Y-M., Chuvashova I., Yasnygina T., Yang C., Xie Z., Saranina E., Gerasimov N., Vladimirova T. Trace-element and Pb isotope evidence on extracting sulfides from potassic melts beneath Longmenshan and Molabushan volcanoes, Wudalianchi, Northeast China // Minerals. 2020b. V. 10, No. 9. P. 319. doi:10.3390/min10040319

Rasskazov S., Chuvashova I., Yasnygina T., Saranina E., Gerasimov N., Ailow Y., Sun Y.-M. Tectonic generation of pseudotachylytes and volcanic rocks: Deep-seated magma sources of crust-mantle transition in the Baikal Rift System, Southern Siberia // Minerals. 2021. V. 11, No. 5. P. 487.

Sal’nikova E.B., Sergeev S.A., Kotov A.B., Yakovleva S.Z., Steiger R.H., Reznitskiy L.Z., Vasil’ev E.P. U–Pb zircon dating of granulite metamorphism in the Sludyanskiy complex, Eastern Siberia // Gondwana Research. 1998. V. 1. P. 195–205.

Şengör A.M., Natal’in B.A. Paleotectonics of Asia: fragments of a synthesis // The tectonic evolution of Asia / Eds. A. Yin, M. Harrison. Cambridge: Cambridge University Press. 1996. V. 21. P. 486–640.

Stosch H.-G., Lugmair G.W., Kovalenko V.I. Spinel peridotite xenoliths from the Tariat Depression, Mongolia. II: Geochemistry and Nd and Sr isotopic composition and their implications for the evolution of the subcontinental lithosphere // Geochimica et Cosmochimica Acta. 1986. V. 50. P. 2601–2614.

Tseden T., Murao S., Dorjgotov D. Introduction to geology of Mongolia // Bulletin of the Geol. Survey of Japan. 1992. V. 43, No. 12. P. 735–744.

Wang K-L., O’Reilly S.Y., Kovach V., Griffin W.L., Pearson N.J., Yarmolyuk V., Kuzmin M.I., Chieh C-J., Shellnutt J.G., Iizuka Y. Microcontinents among the accretionary complexes of the Central Asia Orogenic Belt: In situ Re–Os evidence // Journal of Asian Earth Sciences. 2013. V. 62. P. 37–50. doi:10.1016/j.jseaes.2011.09.016

Wilhem C., Windley B.F., Stampfli G.M. The Altaids of Central Asia: A tectonic and evolutionary innovative review // Earth Science Reviews. 2012. doi: 10.1016/j.earscirev.2012.04.001

Windley B.F. Alexeiev D., Xiao Wenjiao et al. Tectonic models for accretion of the Central Asian Orogenic Belt // J. the Geological Society, London. 2007. V. 164. P. 31–47.

Windley B.F., Kusky T., Polat A. Onset of plate tectonics by the Eoarchean // Precambrian Research. 2021. V. 352. P. 105980 Yokota K., Kanzaki Y., Murakami T. Weathering model for the quantification of atmospheric oxygen evolution during the Paleoproterozoic // Geochimica et Cosmochimica Acta. 2013. V. 117. P. 332–347.

Zorin Yu.A. Geodynamics of the western part of the Mongolia–Okhotsk collisional belt, Trans-Baikal region (Russia) and Mongolia // Tectonophysics. 1999. V. 306. P. 33–56.

Zorin Yu.A., Belichenko V.G., Turutanov E.Kh., Kozhevnikov V.M., Ruzhentsev S.V., Dergunov A.B., Filippova I.B., Tomurtogoo О., Arvisbaatar N., Bayasgalan Ts., Biambaa Ch., Khosbayar P. The South Siberia-Central Mongolia transect // Tectonophysics. 1993. V. 225. P. 361–378.



For citation


Chuvashova I.S. 207Pb–206Pb age of sources of Late Cenozoic volcanic rocks of the crust-mantle transition in relation to the age of ophiolites and ancient blocks exposed on the surface of the crust: transect Kitoi–Baydrag of the Baikal-Mongolian region [Электронный ресурс] / I.S. Chuvashova, S.V. Rasskazov, E.V. Saranina // Geology and Environment.— 2022.— V. 2, No. 2.— P. 61–90. DOI 10.26516/2541-9641.2022.2.61
Access Mode: http://geoenvir.ru/archive/g&e22-2-2/chuvashova22-2.htm (30.06.2022).



Full text (Russian) | In here |

© 2021-2022   Scientific electronic peer-reviewed journal "Geology and Environment". All rights reserved.
XHTML CSS