Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1284810.31857/S0869-56524852199-197Research ArticleEarly permian age of nepheline syenites of the Korgere-Daba massif (Sangilen highlands, Tuva)NikiforovA. V.nikav@igem.ruSalnikovaE. B.nikav@igem.ruYarmolyukV. V.<p>academician of the RAS</p>nikav@igem.ruKotovA. B.nikav@igem.ruSugorakovaA. M.nikav@igem.ruAnisimovaI. V.nikav@igem.ruInstitute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of SciencesInstitute of Precambrian Geology and Geochronology of the Russian Academy of SciencesTuvinian Institute for Exploration of Natural Resources of Siberian Branch of the Russian Academy of Sciences2005201948521941972205201922052019Copyright © 2019, Russian academy of sciences2019<p>This paper reports on geochronological UPb studies of baddeleyite from nepheline syenite of the KorgereDaba alkaline massif, which is the largest massif within the Sangilen Highlands (Tyva). The established age of rocks, 295 1 Ma, indicates that, in the Early Permian, undersaturation by silica magmatism occurred in the region in addition to the alkaline-granite magmatism (UlugTanzek, etc.). This age furthermore points to the need to make corrections in the conceptions of a petrophysical type for the Devonian Sangilen complex, which is traditionally distinguished in this region. Until now, the KorgereDaba massif has been considered in this regard.</p>baddeleyiteU–Pb datingU–Pb geochronologynepheline syeniteKorgere–Daba massifSangilen complexбадделеитU-Pb-датированиеU-Pb-геохронологиянефелиновые сиенитыКорго- редабинский массивСангиленский комплекс[Дорошкевич А. Г., Рипп Г. С., Сергеев С. А. // ДАН. 2012. T. 443. № 1. С. 297-301.][Врублевский В. В., Гертнер И. Ф., Тишин П. А. и др. // ДАН. 2014. Т. 459. № 5. С. 601-606.][Izokh A. E., Polyakov G. V., Shelepaev R. A., et al. // Published on Large Igneous Provinces Commission. May 2008 LIP of the Month. http://www.largeigne- ousprovinces.org][Воронцов А. А., Ярмолюк В. В., Федосеев Г. С. и др. // Петрология. 2010. Т. 18. № 6. С. 621-634.][Гибшер А. А., Мальковец В. Г., Травин А. В. и др. // Геология и геофизика. 2012. Т. 53. № 8. С. 998-1013.][Yarmolyuk V. V., Kuzmin M. I., Ernst R. E. // J. Asian Earth Sci. 2014. V. 93. P. 158-179.][Яшина Р. М. Щелочной магматизм складчато-глыбовых областей. М.: Наука, 1982. 274 с.][Krogh T. E. // Geochim. et Cosmochim. Acta. 1973. V. 37. P. 485-494][Ludwig K. R. // U.S. Geol. Surv. Open File Rept 88542. 1991. 35 p.][Ludwig K. R. // Berkeley Geochronol. Center Spec. Publ. 2012. 72 p.][Stacey J. S., Kramers I. D. // Earth and Planet. Sci. Lett. 1975. V. 26. № 2. P. 207-221.][Ярмолюк В. В., Лыхин Д. А., Козловский А. М. и др. // Петрология. 2016. Т. 24. № 5. С. 515-536.]