gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2017-8-2-0245gtcrust-366Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSУСЛОВИЯ ПЛАВЛЕНИЯ ГРАНИТОИДНЫХ КСЕНОЛИТОВ В КОНТАКТЕ СО ЩЕЛОЧНО‐БАЗИТОВОЙ МАГМОЙ (ГУСИНООЗЕРСКАЯ ДАЙКА, ЗАПАДНОЕ ЗАБАЙКАЛЬЕ): К ПРОБЛЕМЕ ПРОИСХОЖДЕНИЯ УЛЬТРАКАЛИЕВЫХ КИСЛЫХ РАСПЛАВОВMELTING CONDITIONS OF GRANITOID XENOLITHS IN CONTACT WITH ALKALINE MAFIC MAGMA (GUSINOOZERSKAYA DYKE, WESTERN TRANSBAIKALIA): TO THE PROBLEM OF THE ORIGIN OF ULTRAPOTASSIC ACID MELTSХубановВ. Б.KhubanovV. B.

канд. геол.-мин. наук, с.н.с.,

670047, Улан-Удэ, ул. Сахьяновой, 6а;

670000, Улан-Удэ, ул. Смолина, 24а

Candidate of Geology and Mineralogy, Senior Researcher,

6a Sakhyanova street, Ulan-Ude 670047;

24a Smolin street, Ulan-Ude 670000

khubanov@mail.ruВрублевскаяТ. Т.VrublevskayaT. T.

канд. геол.-мин. наук, c.н.с.,

670047, Улан-Удэ, ул. Сахьяновой, 6а;

670000, Улан-Удэ, ул. Смолина, 24а

Candidate of Geology and Mineralogy, Senior Researcher,

6a Sakhyanova street, Ulan-Ude 670047;

24a Smolin street, Ulan-Ude 670000

vrublevskayatt@rambler.ruЦыганковА. А.TsygankovA. A.

докт. геол.-мин. наук, директор,

670047, Улан-Удэ, ул. Сахьяновой, 6а;

670000, Улан-Удэ, ул. Смолина, 24а

Doctor of Geology and Mineralogy, Director,

6a Sakhyanova street, Ulan-Ude 670047;

24a Smolin street, Ulan-Ude 670000

tsygan@gin.bscnet.ruВладимировА. Г.VladimirovA. G.

докт. геол.-мин. наук, г.н.с., профессор,

630090, Новосибирск, просп. Академика Коптюга, 3;

630090, Новосибирск, ул. Пирогова, 2;

634050, Томск, просп. Ленина, 50

Doctor of Geology and Mineralogy, Chief Researcher, Professor,

3 Academician Koptyug ave, Novosibirsk 630090;

2 Pirogov street, Novosibirsk 630090;

50 Lenin ave, Tomsk 634050

vladimir@igm.nsc.ruБуянтуевМ. Д.BuyantuevM. D.

м.н.с.,

670047, Улан-Удэ, ул. Сахьяновой, 6а

Junior Researcher,

6a Sakhyanova street, Ulan-Ude 670047

molon2@rambler.ruСоколоваЕ. Н.SokolovaE. N.

канд. геол.-мин. наук, н.с.,

630090, Новосибирск, просп. Академика Коптюга, 3

Candidate of Geology and Mineralogy, Researcher,

3 Academician Koptyug ave, Novosibirsk 630090

ekaterina@igm.nsc.ruПосоховВ. Ф.PosokhovV. F.

с.н.с.,

670047, Улан-Удэ, ул. Сахьяновой, 6а

Senior Researcher,

6a Sakhyanova street, Ulan-Ude 670047

vitaf1@yandex.ruХромоваЕ. А.KhromovaE. A.

м.н.с.,

670047, Улан-Удэ, ул. Сахьяновой, 6а

Junior Researcher,

6a Sakhyanova street, Ulan-Ude 670047

lena.khromova.00@mail.ruГеологический институт СО РАН; Бурятский государственный университетРоссияGeological Institute, Siberian Branch of RAS; Buryat State UniversityRussian FederationИнститут геологии и минералогии им. В.С. Соболева СО РАН; Новосибирский государственный университет; Томский государственный университетРоссияV.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of RAS; Novosibirsk State University; Tomsk State UniversityRussian FederationГеологический институт СО РАНРоссияGeological Institute, Siberian Branch of RASRussian FederationИнститут геологии и минералогии им. В.С. Соболева СО РАНРоссияV.S. Sobolev Institute of Geology and Mineralogy, Siberian Branch of RASRussian Federation20172306201782347368Copyright © Хубанов В.Б., Врублевская Т.Т., Цыганков А.А., Владимиров А.Г., Буянтуев М.Д., Соколова Е.Н., Посохов В.Ф., Хромова Е.А., 20172017Хубанов В.Б., Врублевская Т.Т., Цыганков А.А., Владимиров А.Г., Буянтуев М.Д., Соколова Е.Н., Посохов В.Ф., Хромова Е.А.Khubanov V.B., Vrublevskaya T.T., Tsygankov A.A., Vladimirov A.G., Buyantuev M.D., Sokolova E.N., Posokhov V.F., Khromova E.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/366

Щелочно‐мафическая (лампрофировая) Гусиноозерская дайка (Западное Забайкалье) содержит гранитные ксенолиты, испытавшие частичное плавление. Среди ксенолитов выявлено два субстрата, претерпевших плавление: 1) плагиоклаз и кварц и 2) щелочной полевой шпат и кварц. Продукты плавления представляют собой микрофельзитовые и микрогранофировые оторочки вокруг гранитных ксенолитов мощностью в первые миллиметры. Во внутренних частях ксенолитов на границе кварца и полевых шпатов наблюдается ультракислое стекло. Отличительной особенностью новообразованных расплавов, независимо от состава протолитового субстрата, является их повышенная калиевость с отношением K2O/Na2O≥2. На основе сопоставления составов производных контактового плавления с экспериментальными данными показано, что плавление происходило в присутствии щелочно‐хлоридного и/или щелочно‐углекислого флюида, выделявшегося из кристаллизующейся вмещающей щелочно‐основной магмы. Оценены вероятные геотектонические условия возникновения ультракалиевых кислых магм.

The alkaline mafic (lamprophyric) Gusinoozerskaya dyke in West Transbaikalia is composed of partially melted granite xenoliths. Among the xenoliths, two melted substrates are observed: (1) plagioclase and quartz, and (2) alkaline feldspar and quartz. Few millimeters thick microfelsite and microgranophiric rims are the products of melting around the granite xenoliths. Ultra‐acid glass is observed in the inner parts of the xenoliths at the boundary of quartz and feldspars. A distinctive feature of the fresh melts (regardless of the composition of the protolithic sub‐ strate) is an increased content of potassium with K2O/Na2O≥2. Having compared the compositions of the products of contact melting with the experimental data, we conclude that melting took place in the presence of alkaline‐chloride and/or alkaline‐carbonic fluid released from the crystallizing host alkaline‐basic magma. The probable geotectonic conditions for the occurrence of ultrapotassic acid magmas are estimated.

щелочно‐базитовая магмаизвестково‐щелочной лампрофиргранитоидные ксенолитыконтактовое плавлениеультракалиевый кислый расплавпетрогенетические и тектонические условияГусиноозерская дайкаЗабайкальеalkaline mafic magmacalc‐alkaline lamprophyregranitoid xenolithscontact meltingultrapotassic acidic meltpetrogenetic and tectonic conditionsGusinoozerskaya dykeTransbaikaliaРоссийский фонд фундаментальных исследованийReferencesAndryushchenko S.V., Vorontsov A.A., Yarmolyuk V.V., Sandimirov I.V., 2010. Evolution of Jurassic-Cretaceous magmatism in the Khambin volcanotectonic complex (Western Transbaikalia). Russian Geology and Geophysics 51 (7), 734–749. https://doi.org/10.1016/j.rgg.2010.06.002.Andryushchenko S.V., Vorontsov A.A., Yarmolyuk V.V., Sandimirov I.V., 2010. Evolution of Jurassic-Cretaceous magmatism in the Khambin volcanotectonic complex (Western Transbaikalia). Russian Geology and Geophysics 51 (7), 734–749. https://doi.org/10.1016/j.rgg.2010.06.002.Antipin V.S., Halls C., Mitichkin M.A., Scott P., Kuznetsov A.N., 2002. Elvans of Cornwall (England) and Southern Siberia as subvolcanic counterparts of subalkalic rare metal granites. Geologiya i Geofizika (Russian Geology and Geophysics) 43 (9), 847–857.Antipin V.S., Halls C., Mitichkin M.A., Scott P., Kuznetsov A.N., 2002. Elvans of Cornwall (England) and Southern Siberia as subvolcanic counterparts of subalkalic rare metal granites. Geologiya i Geofizika (Russian Geology and Geophysics) 43 (9), 847–857.Aranovich L.Y., Newton R.C., Manning C.E., 2013. Brine-assisted anatexis: Experimental melting in the system haplogranite–H2O–NaCl–KCl at deep-crustal conditions. Earth and Planetary Science Letters 374, 111–120. https://doi.org/10.1016/j.epsl.2013.05.027.Aranovich L.Y., Newton R.C., Manning C.E., 2013. Brine-assisted anatexis: Experimental melting in the system haplogranite–H2O–NaCl–KCl at deep-crustal conditions. Earth and Planetary Science Letters 374, 111–120. https://doi.org/10.1016/j.epsl.2013.05.027.Bai T.B., Koster Van Groos A.F., 1999. The distribution of Na, K, Rb, Sr, Al, Ge, Cu, W, Mo, La, and Ce between granitic melts and coexisting aqueous fluids. Geochimica et Cosmochimica Acta 63 (7–8), 1117–1131. https://doi.org/10.1016/S0016-7037(98)00284-1.Bai T.B., Koster Van Groos A.F., 1999. The distribution of Na, K, Rb, Sr, Al, Ge, Cu, W, Mo, La, and Ce between granitic melts and coexisting aqueous fluids. Geochimica et Cosmochimica Acta 63 (7–8), 1117–1131. https://doi.org/10.1016/S0016-7037(98)00284-1.Buyantuev M.D., Khubanov V.B., Vrublevskaya Т.Т., 2017. U-Pb LA-ICP-MS dating of zircons from subvolcanics of the bimodal dyke series of the Western Transbaikalia: Technique, and evidence of the Late Paleozoic extension of the crust. Geodynamics & Tectonophysics 8 (2), 369–384 (in Russian) [Буянтуев М.Д., Хубанов В.Б., Врублевская Т.Т. U-Pb LA-ICP-MS датирование цирконов из субвулканитов бимодальной дайковой серии Западного Забайкалья: методика, свидетельства позднепалеозойского растяжения земной коры // Геодинамика и тектонофизика. 2017. Т. 8. № 2. С. 369–384]. https://doi.org/10.5800/GT-2017-8-2-0246.Buyantuev M.D., Khubanov V.B., Vrublevskaya Т.Т., 2017. U-Pb LA-ICP-MS dating of zircons from subvolcanics of the bimodal dyke series of the Western Transbaikalia: Technique, and evidence of the Late Paleozoic extension of the crust. Geodynamics & Tectonophysics 8 (2), 369–384 (in Russian) [Буянтуев М.Д., Хубанов В.Б., Врублевская Т.Т. U-Pb LA-ICP-MS датирование цирконов из субвулканитов бимодальной дайковой серии Западного Забайкалья: методика, свидетельства позднепалеозойского растяжения земной коры // Геодинамика и тектонофизика. 2017. Т. 8. № 2. С. 369–384]. https://doi.org/10.5800/GT-2017-8-2-0246.Ennis D.J., Dunbar N.W., Campbell A.R., Chapin C.E., 2000. The effects of K-metasomatism on the mineralogy and geochemistry of silicic ignimbrites near Socorro, New Mexico. Chemical Geology 167 (3–4), 285–312. https://doi.org/10.1016/S0009-2541(99)00223-5.Ennis D.J., Dunbar N.W., Campbell A.R., Chapin C.E., 2000. The effects of K-metasomatism on the mineralogy and geochemistry of silicic ignimbrites near Socorro, New Mexico. Chemical Geology 167 (3–4), 285–312. https://doi.org/10.1016/S0009-2541(99)00223-5.Faure G., 1986. Principles of Isotope Geology. John Wiley & Sons, New York, 608 p. [Русский перевод: Фор Г. Основы изотопной геологии. М.: Мир, 1989. 590 с.].Faure G., 1986. Principles of Isotope Geology. John Wiley & Sons, New York, 608 p. [Русский перевод: Фор Г. Основы изотопной геологии. М.: Мир, 1989. 590 с.].Fromberg E.D., 1980. On the nature of ultrapotassic liparites. Doklady AN SSSR 253 (3), 685–687 (in Russian) [Фромберг Э.Д. О природе ультракалиевых липаритов // Доклады АН СССР. 1980. Т. 253. № 3. С. 685–687].Fromberg E.D., 1980. On the nature of ultrapotassic liparites. Doklady AN SSSR 253 (3), 685–687 (in Russian) [Фромберг Э.Д. О природе ультракалиевых липаритов // Доклады АН СССР. 1980. Т. 253. № 3. С. 685–687].Gordienko I.V., Kovach V.P., Elbaev A.L., Kotov A.B., Sal’nikova E.B., Reznitskii L.Z., Yakovleva S.Z., Anisimova I.V., 2012. Collisional granitoids of the Dzhida zone of the Central Asian fold belt, Southwestern Transbaikalia: Age and conditions of the formation. Petrology 20 (1), 40–58. https://doi.org/10.1134/S086959111201002X.Gordienko I.V., Kovach V.P., Elbaev A.L., Kotov A.B., Sal’nikova E.B., Reznitskii L.Z., Yakovleva S.Z., Anisimova I.V., 2012. Collisional granitoids of the Dzhida zone of the Central Asian fold belt, Southwestern Transbaikalia: Age and conditions of the formation. Petrology 20 (1), 40–58. https://doi.org/10.1134/S086959111201002X.Haweks L., 1929. On a partially fused quartz-feldspar-rock and on glomerogranular texture. Mineralogical Magazine 22 (127), 163–174. https://doi.org/10.1180/minmag.1929.022.127.01.Haweks L., 1929. On a partially fused quartz-feldspar-rock and on glomerogranular texture. Mineralogical Magazine 22 (127), 163–174. https://doi.org/10.1180/minmag.1929.022.127.01.Hersum T.G., Marsh B.D., Simon A.C., 2007. Contact partial melting of granitic country rock, melt segregation, and re-injection as dikes into Ferrar Dolerite Sills, McMurdo Dry Valleys, Antarctica. Journal of Petrology 48 (11), 2125–2148. https://doi.org/10.1093/petrology/egm054.Hersum T.G., Marsh B.D., Simon A.C., 2007. Contact partial melting of granitic country rock, melt segregation, and re-injection as dikes into Ferrar Dolerite Sills, McMurdo Dry Valleys, Antarctica. Journal of Petrology 48 (11), 2125–2148. https://doi.org/10.1093/petrology/egm054.Huppert H.E., Sparks R.S., 1988. The generation of granitic magmas by intrusion of basalt into continental crust. Journal of Petrology 29 (3), 599–624. https://doi.org/10.1093/petrology/29.3.599.Huppert H.E., Sparks R.S., 1988. The generation of granitic magmas by intrusion of basalt into continental crust. Journal of Petrology 29 (3), 599–624. https://doi.org/10.1093/petrology/29.3.599.Ivanov V.G., Yarmolyuk V.V., 1996. An Early Cretaceous tephrite-phonolite association on the southern slope of the Lesser Khamardaban range, Western Transbaikal region. Transactions of the Russian Academy of Sciences – Earth Science Sections 349 (6), 895–898.Ivanov V.G., Yarmolyuk V.V., 1996. An Early Cretaceous tephrite-phonolite association on the southern slope of the Lesser Khamardaban range, Western Transbaikal region. Transactions of the Russian Academy of Sciences – Earth Science Sections 349 (6), 895–898.Jahn B.M., Litvinovsky B.A., Zanvilevich A.N., Reichow M., 2009. Peralkaline granitoid magmatism in the Mongolian–Transbaikalian Belt: Evolution, petrogenesis and tectonic significance. Lithos 113 (3–4), 521–539. https://doi.org/10.1016/j.lithos.2009.06.015.Jahn B.M., Litvinovsky B.A., Zanvilevich A.N., Reichow M., 2009. Peralkaline granitoid magmatism in the Mongolian–Transbaikalian Belt: Evolution, petrogenesis and tectonic significance. Lithos 113 (3–4), 521–539. https://doi.org/10.1016/j.lithos.2009.06.015.Johannes W., Holtz F., 1996. Petrogenesis and Experimental Petrology of Granitic Rocks. Springer, Heidelberg, 335 p. https://doi.org/10.1007/978-3-642-61049-3.Johannes W., Holtz F., 1996. Petrogenesis and Experimental Petrology of Granitic Rocks. Springer, Heidelberg, 335 p. https://doi.org/10.1007/978-3-642-61049-3.Khubanov V.B., Buyantuev M.D., Tsygankov A.A., 2016. U–Pb dating of zircon from PZ3–MZ igneous complexes of Transbaikalia by sector-field mass spectrometry with laser sampling: technique and comparison with SHRIMP. Russian Geology and Geophysics 57 (1), 190–205. https://doi.org/10.1016/j.rgg.2016.01.013.Khubanov V.B., Buyantuev M.D., Tsygankov A.A., 2016. U–Pb dating of zircon from PZ3–MZ igneous complexes of Transbaikalia by sector-field mass spectrometry with laser sampling: technique and comparison with SHRIMP. Russian Geology and Geophysics 57 (1), 190–205. https://doi.org/10.1016/j.rgg.2016.01.013.Khubanov V.B., Vrublevskaya T.T., Tsyrenov B.Ts., Tsygankov A.A., 2015. Formation of the trachybasalt-trachyte bimodal series of the Malo-Khamardaban volcanotectonic complex, southwestern Transbaikalia: Role of fractional crystallization and magma mixing. Petrology 23 (5), 451–479. https://doi.org/10.1134/S0869591115040037.Khubanov V.B., Vrublevskaya T.T., Tsyrenov B.Ts., Tsygankov A.A., 2015. Formation of the trachybasalt-trachyte bimodal series of the Malo-Khamardaban volcanotectonic complex, southwestern Transbaikalia: Role of fractional crystallization and magma mixing. Petrology 23 (5), 451–479. https://doi.org/10.1134/S0869591115040037.Le Bas M.J., Le Maitre R.W., Streckeisen A., Zanettin B., 1986. A chemical classification of volcanic rocks based on total alkaline-silica diagram. Journal of Petrology 27 (3), 745–750. https://doi.org/10.1093/petrology/27.3.745.Le Bas M.J., Le Maitre R.W., Streckeisen A., Zanettin B., 1986. A chemical classification of volcanic rocks based on total alkaline-silica diagram. Journal of Petrology 27 (3), 745–750. https://doi.org/10.1093/petrology/27.3.745.Litvinovsky B.A., Karmanov N.S., Vapnik E., 2006. Genesis of ultrapotassic quartz porphyry in the Northern ArabianNubian shield. Geologiya i Geofizika (Russian Geology and Geophysics) 47 (11), 1103–1127.Litvinovsky B.A., Karmanov N.S., Vapnik E., 2006. Genesis of ultrapotassic quartz porphyry in the Northern ArabianNubian shield. Geologiya i Geofizika (Russian Geology and Geophysics) 47 (11), 1103–1127.Litvinovsky B.A., Posokhov V.F., Shadaev M.G., Shalagin V.L., 1989. New data on the age of the Early Cretaceous volcanic rocks of the Western Transbaikalia (Rb–Sr and K–Ar datings). Doklady AN SSSR 308 (4), 946–949 (in Russian) [Литвиновский Б.А., Посохов В.Ф., Шадаев М.Г., Шалагин В.Л. Новые данные о возрасте раннемеловых вулканитов Западного Забайкалья (Rb–Sr и K–Ar даты) // Доклады АН СССР. 1989. Т. 308. № 4. С. 946–949].Litvinovsky B.A., Posokhov V.F., Shadaev M.G., Shalagin V.L., 1989. New data on the age of the Early Cretaceous volcanic rocks of the Western Transbaikalia (Rb–Sr and K–Ar datings). Doklady AN SSSR 308 (4), 946–949 (in Russian) [Литвиновский Б.А., Посохов В.Ф., Шадаев М.Г., Шалагин В.Л. Новые данные о возрасте раннемеловых вулканитов Западного Забайкалья (Rb–Sr и K–Ar даты) // Доклады АН СССР. 1989. Т. 308. № 4. С. 946–949].Litvinovsky B.A., Tsygankov A.A., Jahn B.M., Katzir Y., Be’eri-Shlevin Y., 2011. Origin and evolution of overlapping calcalkaline and alkaline magmas: The Late Palaeozoic post-collisional igneous province of Transbaikalia (Russia). Lithos 125 (3–4), 845–874. https://doi.org/10.1016/j.lithos.2011.04.007.Litvinovsky B.A., Tsygankov A.A., Jahn B.M., Katzir Y., Be’eri-Shlevin Y., 2011. Origin and evolution of overlapping calcalkaline and alkaline magmas: The Late Palaeozoic post-collisional igneous province of Transbaikalia (Russia). Lithos 125 (3–4), 845–874. https://doi.org/10.1016/j.lithos.2011.04.007.Litvinovsky B.A., Zanvilevich A.N., Alakshin A.M., Podladchikov Y.Y., 1993. The Angara–Vitim Batholith, the Largest Granitoid Pluton. OIGGM SO RAN, Novosibirsk, 141 p. (in Russian) [Литвиновский Б.А., Занвилевич А.Н., Алакшин А.М., Подладчиков Ю.Ю. Ангаро-Витимский батолит – крупнейший гранитоидный плутон. Новосибирск: Изд-во ОИГГМ СО РАН, 1993. 141 с.].Litvinovsky B.A., Zanvilevich A.N., Alakshin A.M., Podladchikov Y.Y., 1993. The Angara–Vitim Batholith, the Largest Granitoid Pluton. OIGGM SO RAN, Novosibirsk, 141 p. (in Russian) [Литвиновский Б.А., Занвилевич А.Н., Алакшин А.М., Подладчиков Ю.Ю. Ангаро-Витимский батолит – крупнейший гранитоидный плутон. Новосибирск: Изд-во ОИГГМ СО РАН, 1993. 141 с.].Mishin L.F., 2006. The nature and prospecting implications for ultrapotassic rhyolites as exemplified by epithermal gold-silver deposits of the Far East. Tikhookeanskaya Geologiya (Russian Journal of Pacific Geology) 25 (6), 30–39 (in Russian) [Мишин Л.Ф. Природа и поисковое значение ультракалиевых риолитов на примере эпитермальных золото-серебряных месторождений Дальнего Востока // Тихоокеанская геология. 2006. Т. 25. № 6. С. 30–39].Mishin L.F., 2006. The nature and prospecting implications for ultrapotassic rhyolites as exemplified by epithermal gold-silver deposits of the Far East. Tikhookeanskaya Geologiya (Russian Journal of Pacific Geology) 25 (6), 30–39 (in Russian) [Мишин Л.Ф. Природа и поисковое значение ультракалиевых риолитов на примере эпитермальных золото-серебряных месторождений Дальнего Востока // Тихоокеанская геология. 2006. Т. 25. № 6. С. 30–39].Munhá J., Fyfe W.S., Kerrich R., 1980. Adularia, the characteristic mineral of felsic spilites. Contributions to Mineralogy and Petrology 75 (1), 15–19. https://doi.org/10.1007/BF00371885.Munhá J., Fyfe W.S., Kerrich R., 1980. Adularia, the characteristic mineral of felsic spilites. Contributions to Mineralogy and Petrology 75 (1), 15–19. https://doi.org/10.1007/BF00371885.Naumov V.B., Kovalenko V.I., Dorofeeva V.A., Yarmolyuk V.V., 2004. Average concentrations of major, volatile, and trace elements in magmas of various geodynamic settings. Geochemistry International 42 (10), 977–987.Naumov V.B., Kovalenko V.I., Dorofeeva V.A., Yarmolyuk V.V., 2004. Average concentrations of major, volatile, and trace elements in magmas of various geodynamic settings. Geochemistry International 42 (10), 977–987.Nekvasil H., 1992. Feldspar crystallisation in felsic magmas: a review. Transactions of The Royal Society of Edinburgh – Earth and Environmental Science 83 (1–2), 399–407. https://doi.org/10.1017/S0263593300008063.Nekvasil H., 1992. Feldspar crystallisation in felsic magmas: a review. Transactions of The Royal Society of Edinburgh – Earth and Environmental Science 83 (1–2), 399–407. https://doi.org/10.1017/S0263593300008063.Petrographic Code of Russia, 2009. Magmatic, Metamorphic, Metasomatic, and Impact Formations. VSEGEI Press, Saint-Petersburg, 200 p. (in Russian) [Петрографический кодекс России. Магматические, метаморфические, метасоматические, импактные образования. Санкт-Петербург: Издательство ВСЕГЕИ, 2008. 200 с.].Petrographic Code of Russia, 2009. Magmatic, Metamorphic, Metasomatic, and Impact Formations. VSEGEI Press, Saint-Petersburg, 200 p. (in Russian) [Петрографический кодекс России. Магматические, метаморфические, метасоматические, импактные образования. Санкт-Петербург: Издательство ВСЕГЕИ, 2008. 200 с.].Philpotts A.R., Asher P.M., 1993. Wallrock melting and reaction effects along the Higganum diabase dike in Connecticut: contamination of a continental flood basalt feeder. Journal of Petrology 34 (5), 1029–1058. https://doi.org/10.1093/petrology/34.5.1029.Philpotts A.R., Asher P.M., 1993. Wallrock melting and reaction effects along the Higganum diabase dike in Connecticut: contamination of a continental flood basalt feeder. Journal of Petrology 34 (5), 1029–1058. https://doi.org/10.1093/petrology/34.5.1029.Polovinkina Yu.I., 1966. Structures and Textures of Igneous and Metamorphic Rocks. Part 2. Volume II. Nedra, Moscow, 272 p. (in Russian) [Половинкина Ю.И. Структуры и текстуры изверженных и метаморфических горных пород. Часть 2. Том II. М.: Недра, 1966. 272 с.].Polovinkina Yu.I., 1966. Structures and Textures of Igneous and Metamorphic Rocks. Part 2. Volume II. Nedra, Moscow, 272 p. (in Russian) [Половинкина Ю.И. Структуры и текстуры изверженных и метаморфических горных пород. Часть 2. Том II. М.: Недра, 1966. 272 с.].Popov V.S., Nikolaenko Yu.S., 1988. On the origin of ultrapotassic rhyolite. Proceedings of the All-Union Mineralogical Society 117 (3), 294–304 (in Russian) [Попов В.С., Николаенко Ю.С. О происхождении ультракалиевых риолитов // Записки Всесоюзного минералогического общества. 1988. Т. 117. № 3. C. 294–304].Popov V.S., Nikolaenko Yu.S., 1988. On the origin of ultrapotassic rhyolite. Proceedings of the All-Union Mineralogical Society 117 (3), 294–304 (in Russian) [Попов В.С., Николаенко Ю.С. О происхождении ультракалиевых риолитов // Записки Всесоюзного минералогического общества. 1988. Т. 117. № 3. C. 294–304].Posokhov V.F., Shadaev M.G., Litvinovsky B.A., Khubanov V.B., 2005. Rb-Sr age and sequence of formation of granitoids of the Khorinka volcanoplutonic structure in the Mongolo-Transbaikalian belt. Geologiya i Geofizika (Russian Geology and Geophysics) 46 (6), 625–632.Posokhov V.F., Shadaev M.G., Litvinovsky B.A., Khubanov V.B., 2005. Rb-Sr age and sequence of formation of granitoids of the Khorinka volcanoplutonic structure in the Mongolo-Transbaikalian belt. Geologiya i Geofizika (Russian Geology and Geophysics) 46 (6), 625–632.Putirka K.D., Mikaelian H., Ryerson F., Shaw H., 2003. New clinopyroxene-liquid thermobarometers for mafic, evolved, and volatile-bearing lava compositions, with applications to lavas from Tibet and the Snake River Plain, Idaho. American Mineralogist 88 (10), 1542–1554. https://doi.org/10.2138/am-2003-1017.Putirka K.D., Mikaelian H., Ryerson F., Shaw H., 2003. New clinopyroxene-liquid thermobarometers for mafic, evolved, and volatile-bearing lava compositions, with applications to lavas from Tibet and the Snake River Plain, Idaho. American Mineralogist 88 (10), 1542–1554. https://doi.org/10.2138/am-2003-1017.Ramakrishnan M., Bhattacharyya S., 1985. Contact metamorphic granophyres of partial melting origin adjacent to dolerite dykes in Karnataka. Journal of Geological Society of India 26 (2), 95–102.Ramakrishnan M., Bhattacharyya S., 1985. Contact metamorphic granophyres of partial melting origin adjacent to dolerite dykes in Karnataka. Journal of Geological Society of India 26 (2), 95–102.Reichow M.K., Litvinovsky B.A., Parrish R.R., Saunders A.D., 2010. Multi-stage emplacement of alkaline and peralkaline syenite–granite suites in the Mongolian–Transbaikalian belt, Russia: Evidence from U-Pb geochronology and whole rock geochemistry. Chemical Geology 273 (1–2), 120–135. https://doi.org/10.1016/j.chemgeo.2010.02.017.Reichow M.K., Litvinovsky B.A., Parrish R.R., Saunders A.D., 2010. Multi-stage emplacement of alkaline and peralkaline syenite–granite suites in the Mongolian–Transbaikalian belt, Russia: Evidence from U-Pb geochronology and whole rock geochemistry. Chemical Geology 273 (1–2), 120–135. https://doi.org/10.1016/j.chemgeo.2010.02.017.Rock N.M.S., 1984. Nature and origin of calc-alkaline lamprophyres: minettes, vogesites, kersantites and spessartites. Transactions of The Royal Society of Edinburgh – Earth and Environmental Science 74 (4), 193–227. https://doi.org/10.1017/S0263593300013663.Rock N.M.S., 1984. Nature and origin of calc-alkaline lamprophyres: minettes, vogesites, kersantites and spessartites. Transactions of The Royal Society of Edinburgh – Earth and Environmental Science 74 (4), 193–227. https://doi.org/10.1017/S0263593300013663.Rozinov M.I., 1967. On reaction ratios of quartz and feldspar from pegmatite segregations in the Gusinoozerskaya dike (West Transbaikalia). Geologiya i Geofizika (Russian Geology and Geophysics) 8 (12), 12–21 (in Russian) [Розинов М.И. О реакционных соотношениях кварца и полевого шпата из пегматитовых обособлений Гусиноозерской дайки (Западное Забайкалье) // Геология и геофизика. 1967. Т. 8. № 12. С. 12–21].Rozinov M.I., 1967. On reaction ratios of quartz and feldspar from pegmatite segregations in the Gusinoozerskaya dike (West Transbaikalia). Geologiya i Geofizika (Russian Geology and Geophysics) 8 (12), 12–21 (in Russian) [Розинов М.И. О реакционных соотношениях кварца и полевого шпата из пегматитовых обособлений Гусиноозерской дайки (Западное Забайкалье) // Геология и геофизика. 1967. Т. 8. № 12. С. 12–21].Shadaev M.G., 2001. Conditions of crystallization of alkaline basalt magmas during formation of the Gusinoozerskaya dike (Transbaikalia). Proceedings of the All-Russian Mineralogical Society 130 (1), 34–48 (in Russian) [Шадаев М.Г. Условия кристаллизации щелочно-базальтовых магм при формировании Гусиноозерской дайки (Забайкалье) // Записки Всероссийского минералогического общества. 2001. Т. 130. № 1. С. 34–48].Shadaev M.G., 2001. Conditions of crystallization of alkaline basalt magmas during formation of the Gusinoozerskaya dike (Transbaikalia). Proceedings of the All-Russian Mineralogical Society 130 (1), 34–48 (in Russian) [Шадаев М.Г. Условия кристаллизации щелочно-базальтовых магм при формировании Гусиноозерской дайки (Забайкалье) // Записки Всероссийского минералогического общества. 2001. Т. 130. № 1. С. 34–48].Sharp Z.D., 1990. A laserbased microanalytical method for the in situ determination of oxygen isotope ratios of silicates and oxides. Geochimica et Cosmochimica Acta 54 (5), 1353–1357. https://doi.org/10.1016/0016-7037(90)90160-M.Sharp Z.D., 1990. A laserbased microanalytical method for the in situ determination of oxygen isotope ratios of silicates and oxides. Geochimica et Cosmochimica Acta 54 (5), 1353–1357. https://doi.org/10.1016/0016-7037(90)90160-M.Sisson T.W., Grove T.L., 1993. Experimental investigations of the role of H2O in calc-alkaline differentiation and subduction zone magmatism. Contributions to Mineralogy and Petrology 113 (2), 143–166. https://doi.org/10.1007/BF00283225.Sisson T.W., Grove T.L., 1993. Experimental investigations of the role of H2O in calc-alkaline differentiation and subduction zone magmatism. Contributions to Mineralogy and Petrology 113 (2), 143–166. https://doi.org/10.1007/BF00283225.Sokolova E.N., Smirnov S.Z., 2014. Infuence of fluid phase on composition of rare-metal granite magma: original ofSokolova E.N., Smirnov S.Z., 2014. Infuence of fluid phase on composition of rare-metal granite magma: original ofOngonites of the East-Kalguty dike belt. In: Granites and Earth’s evolution: granites and continental crust. Proceedings of the 2nd International Geological Conference. Publishing House of SB RAS, Novosibirsk, p. 191–193.Ongonites of the East-Kalguty dike belt. In: Granites and Earth’s evolution: granites and continental crust. Proceedings of the 2nd International Geological Conference. Publishing House of SB RAS, Novosibirsk, p. 191–193.Sokolova E.N., Smirnov S.Z., Astrelina E.I., Annikova I.Yu., Vladimirov A.G., Kotler P.D., 2011. Ongonite–elvan magmas of the Kalguty ore-magmatic system (Gorny Altai): composition, fluid regime, and genesis. Russian Geology and Geophysics 52 (11), 1378–1400. https://doi.org/10.1016/j.rgg.2011.10.017.Sokolova E.N., Smirnov S.Z., Astrelina E.I., Annikova I.Yu., Vladimirov A.G., Kotler P.D., 2011. Ongonite–elvan magmas of the Kalguty ore-magmatic system (Gorny Altai): composition, fluid regime, and genesis. Russian Geology and Geophysics 52 (11), 1378–1400. https://doi.org/10.1016/j.rgg.2011.10.017.Stuart D.B., 1983. Formation of silica-rich potassium vitreous rocks. In: H. Yoder (Ed.), Evolution of igneous rocks. Mir, Moscow, p. 332–343 (in Russian) [Стюарт Д.Б. Образование богатых кремнеземом калиевых стекловатых пород // Эволюция изверженных пород / Ред. Х. Йодер. М.: Мир, 1983. С. 332–343].Stuart D.B., 1983. Formation of silica-rich potassium vitreous rocks. In: H. Yoder (Ed.), Evolution of igneous rocks. Mir, Moscow, p. 332–343 (in Russian) [Стюарт Д.Б. Образование богатых кремнеземом калиевых стекловатых пород // Эволюция изверженных пород / Ред. Х. Йодер. М.: Мир, 1983. С. 332–343].Tsygankov A.A., Khubanov V.B., Filimonov A.V., 2010. Bimodal volcanogenic and subvolcanic associations of West Transbaikalia (Pz3–Mz): Magma sources, evolution, geodynamics. Litosfera (Lithosphere) (3), 78–86 (in Russian)Tsygankov A.A., Khubanov V.B., Filimonov A.V., 2010. Bimodal volcanogenic and subvolcanic associations of West Transbaikalia (Pz3–Mz): Magma sources, evolution, geodynamics. Litosfera (Lithosphere) (3), 78–86 (in Russian)[Цыганков А.А., Хубанов В.Б., Филимонов А.В. Бимодальные вулканогенные и субвулканические ассоциации Западного Забайкалья (Pz3-Mz): источники магм, эволюция, геодинамика // Литосфера. 2010. № 3. С. 78–86].[Цыганков А.А., Хубанов В.Б., Филимонов А.В. Бимодальные вулканогенные и субвулканические ассоциации Западного Забайкалья (Pz3-Mz): источники магм, эволюция, геодинамика // Литосфера. 2010. № 3. С. 78–86].Tsygankov A.A., Khubanov V.B., Travin A.V., Lepekhina E.N., Burmakina G.N., Antsiferova T.N., Udoratina O.V., 2016. Late Paleozoic gabbroids of western Transbaikalia: U-Pb and Ar-Ar isotopic ages, composition, and petrogenesis. Russian Geology and Geophysics 57 (5), 790–808. https://doi.org/10.1016/j.rgg.2015.09.019.Tsygankov A.A., Khubanov V.B., Travin A.V., Lepekhina E.N., Burmakina G.N., Antsiferova T.N., Udoratina O.V., 2016. Late Paleozoic gabbroids of western Transbaikalia: U-Pb and Ar-Ar isotopic ages, composition, and petrogenesis. Russian Geology and Geophysics 57 (5), 790–808. https://doi.org/10.1016/j.rgg.2015.09.019.Tuttle O.F., Bowen N.L., 1958. Origin of granite in the light of experimental studies in the system NaAlSi3O8–KAlSi3O8–SiO2–H2O. Geological Society of America Memoirs, vol. 74, 153 p. https://doi.org/10.1130/MEM74-p1.Tuttle O.F., Bowen N.L., 1958. Origin of granite in the light of experimental studies in the system NaAlSi3O8–KAlSi3O8–SiO2–H2O. Geological Society of America Memoirs, vol. 74, 153 p. https://doi.org/10.1130/MEM74-p1.Vladimirov A.G., Annikova I.Yu., Antipin V.S., 2007. Ongonite-elvan magmatism of Southern Siberia. Litosfera (Lithosphere) (4), 21–40 (in Russian) [Владимиров А.Г., Анникова И.Ю., Антипин В.С. Онгонит-эльвановый магматизм Южной Сибири // Литосфера. 2007. № 4. C. 21–40].Vladimirov A.G., Annikova I.Yu., Antipin V.S., 2007. Ongonite-elvan magmatism of Southern Siberia. Litosfera (Lithosphere) (4), 21–40 (in Russian) [Владимиров А.Г., Анникова И.Ю., Антипин В.С. Онгонит-эльвановый магматизм Южной Сибири // Литосфера. 2007. № 4. C. 21–40].Vorontsov A.A., Yarmolyuk V.V., Ivanov V.G., Nikiforov A.V., 2002. Late Mesozoic magmatism in the Dzhida sector of the Western Transbaikalia rift zone: evolutionary stages, associations, and sources. Petrology 10 (5), 448–468.Vorontsov A.A., Yarmolyuk V.V., Ivanov V.G., Nikiforov A.V., 2002. Late Mesozoic magmatism in the Dzhida sector of the Western Transbaikalia rift zone: evolutionary stages, associations, and sources. Petrology 10 (5), 448–468.Yarmolyuk V.V., Budnikov S.V., Kovalenko V.I., Antipin V.S., Goreglyad A.V., Sal’nikova E.B., Kotov A.B., Kozakov I.K., Kovach V.P., Yakovleva S.Z., Berezhnaya N.G., 1997. Geochronology and geodynamic setting of the Angara Vitim batholith. Petrology 5 (5), 401–414.Yarmolyuk V.V., Budnikov S.V., Kovalenko V.I., Antipin V.S., Goreglyad A.V., Sal’nikova E.B., Kotov A.B., Kozakov I.K., Kovach V.P., Yakovleva S.Z., Berezhnaya N.G., 1997. Geochronology and geodynamic setting of the Angara Vitim batholith. Petrology 5 (5), 401–414.Yarmolyuk V.V., Ivanov V.G., Kovalenko V.I., 1998. Sources of intraplate magmatism of Western Transbaikalia in the Late Mesozoic–Cenozoic: trace-element and isotope data. Petrology 6 (2), 101–123.Yarmolyuk V.V., Ivanov V.G., Kovalenko V.I., 1998. Sources of intraplate magmatism of Western Transbaikalia in the Late Mesozoic–Cenozoic: trace-element and isotope data. Petrology 6 (2), 101–123.Yarmolyuk V.V., Kovalenko V.I., 1991. Riftogenic Magmatism of Active Continental Margins and Its Ore-Bearing Capacity. Nauka, Moscow, 263 p. (in Russian) [Ярмолюк В.В., Коваленко В.И. Рифтогенный магматизм активных континентальных окраин и его рудоносность. М.: Наука, 1991. 263 с.].Yarmolyuk V.V., Kovalenko V.I., 1991. Riftogenic Magmatism of Active Continental Margins and Its Ore-Bearing Capacity. Nauka, Moscow, 263 p. (in Russian) [Ярмолюк В.В., Коваленко В.И. Рифтогенный магматизм активных континентальных окраин и его рудоносность. М.: Наука, 1991. 263 с.].Zanvilevich A.N., Litvinovsky B.A., 1996. Disequilibrium melting and magma mixing in bimodal hybrid dikes of the Malo-Khamardaban volcanotectonic structure, Transbaikalia. Petrology 4 (4), 342–361.Zanvilevich A.N., Litvinovsky B.A., 1996. Disequilibrium melting and magma mixing in bimodal hybrid dikes of the Malo-Khamardaban volcanotectonic structure, Transbaikalia. Petrology 4 (4), 342–361.Zanvilevich A.N., Litvinovsky B.A., Shadaev M.G., 1988. Metastable melting of granites in the basaltic melt. Proceedings of the All-Union Mineralogical Society 117 (6), 648–659 (in Russian) [Занвилевич А.Н., Литвиновский Б.А., Шадаев М.Г. Метастабильное плавление гранитов в базальтовом расплаве // Записки Всесоюзного минералогического общества. 1988. Т. 117. № 6. С. 648–659].Zanvilevich A.N., Litvinovsky B.A., Shadaev M.G., 1988. Metastable melting of granites in the basaltic melt. Proceedings of the All-Union Mineralogical Society 117 (6), 648–659 (in Russian) [Занвилевич А.Н., Литвиновский Б.А., Шадаев М.Г. Метастабильное плавление гранитов в базальтовом расплаве // Записки Всесоюзного минералогического общества. 1988. Т. 117. № 6. С. 648–659].

The authors declare that there are no conflicts of interest present.