About the genesis of ovoidal K-feldspar and porphyry quartz in rapakivi granites and related rocks
DOI:
https://doi.org/10.21638/11701/spbu07.2017.101Abstract
A comparative study of structural peculiarities of ovoid K-feldspar porphyry and quartz of rapakivi granite of different arrays (Aland, Vyborg, Salmi batholith rapakivi of the Baltic shield and Bardiaush batholith rapakivi of the South Ural), and hybrid rocks of various genesis allowed us to clarify their role in the formation of rapakivi granite complexes.
It was established, that the porphyritic quartz and ovoides of K-feldspar and their plagioclase shell was formed before the crystallization of the residual cotectic melt of rapakivi granite. In the composite hybrid magmatic rocks xenocryst K-spar have undergone a disintegration of solid solution with formation of a secondary cryptoperthite plagioclase. And xenocrystic quartz was subject to decrepitation by primary fluid inclusions and the formation of new secondary high-temperature inclusions. In a hybrid composite rocks formed as metamorphic and basic igneous rocks ovoid-like porphyroblast Kspar (including plagioclase shells) and quartz porphyry (including the ‘ocelly’) was crystallized from solution. In the crystals of quartz primary inclusions (negative crystals) of trigonal symmetry were present, typical for low-temperature α-modification. Refs 24. Figs 9. Tables 2.
Keywords:
granite rapakivi, ovoides, porphyroblast, hybrid rocks, metasomatic rocks
Downloads
Download data is not yet available.
References
Литература
Belyaev A. M. Petrogenesis of rapakivi granites and related rocks // Rapakivi granites and related rocks: Abstr. Vol. Symp. IGCP-315. Helsinki, Finland, 1991. P. 6.
Belyaev A. M., Neymark L. A., Shebanov A. D. et al. Age and origin of mafic xenoliths from rapakivi granites of the Berdiaush massif (S. Urals, Russia) // Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996. P. 6.
Eklund O., Fröjdö S., Lindberg B. Magma mixing, the petrogenetic link between anorthositic suites and rapakivi granites, Åland, SW Finland // Mineral. Petrol. 1994. Vol. 50. P. 3–19.
Eklund O., Shebanov A. D. The origin of the rapakivi textures by subisothermal decompression // Precambrian Res. 1999. Vol. 95. P. 129–146.
Kirilov A. S., Belyaev A. M., Shebanov A. D. et al. Gas composition of fluid inclusions as an indicator of interaction process between mafic and rapakivi granite magmas // Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996. P. 35.
Müller A., Seltmann R., Kober B. et al. Compositional zoning of rapakivi feldspars and coexisting quartz phenocrysts // Can. Min. 2008. Vol. 46. P. 1417–1442.
Nekvasil H. Ascent of felsic magmas and formation of rapakivi // Am. Miner. 1991. Vol. 76. P. 1279–1290.
Ramo O. T., Haapala I. One hundred years of Rapakivi Granites // Mineralogy and Petrology. 1995. Vol. 52. P. 129–185.
Ronkin Yu. L., Maslov A. V., Kazak A. P. The Lower–Middle Riphean Boundary in the Southern Urals: New Isotopic U–Pb (SHRIMP II) Constraints // Reports of Earth Sciences. 2007. Vol. 415A, N 6. P. 835–840.
Salonsaari P. T. Hybridization in the subvolcanic Jaala-Iitti complex and its petrogenetic relation to rapakivi granites and associated mafic rocks of southern Finland // Bull. Geol. Soc. Finland. 1995. N 67. 104 p.
Savatenkov V. M., Shebanov A. D., Belyaev A. M. Age, source, and conditions of formations of phenocryst-like quartz and ovoid-like alkali feldspar megakrysts in an altered hornfels at the contact aureol of the Salmi rapakivi batholith, Russian Karelia // Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996. P. 62.
Анортозит — рапакивигранитная формация Восточно-Европейской платформы / под ред. Д. А. Великославинского. Л.: Наука, 1978. 296 с.
Беляев А. М., Ермош Н. Г., Сметанникова О. Г. Структурные особенности полевых шпатов гранитов рапакиви и связанных с ними пород // II Всероссийское петрографическое совещание. Тезисы докладов. Т. 3. Сыктывкар, 2000. С. 22–23.
Беляев А. М., Ермош Н. Г. К вопросу о происхождении овоидов гранитов рапакиви // Материалы юбилейной научной сессии к 100-летию Н. Г. Судовикова. СПб., 2003. С. 41–44.
Беляев А. М., Шебанов А. Д. Особенности петрогенезиса орбикулярных гранитов рапакиви Салминского массива (Карелия) // Образование и локализация руд в земной коре. СПб.: Изд-во С.-Петерб. ун-та, 1999. С. 295–301.
Беляев А. М. Петрология вулканитов формации рапакиви (о. Гогланд) // Региональная геология и металлогения. 2013. № 55. С. 28–36.
Великославинский Д. А., Великославинский С. Д. Бердяушский Плутон овоидных гранитов: вещественный состав и геодинамическое положение // Записки ВМО. 2003. Ч. 27, № 3. С. 1–15.
Ларин А. М. Граниты рапакиви и ассоциирующие породы. СПб.: Наука, 2011. 403 с.
Левковский Р. З. Рапакиви. Л.: Недра, 1975. 230 с.
Свириденко Л. П. Граниты рапакиви фенноскандинавского щита (на примере Карелии) // Труды Карельского научного центра РАН. 2014. № 1. С. 17–27.
Сонюшкин В. Е. Электронная микроскопия включений минералообразующей среды в кварце // Известия Академии наук СССР, серия геологическая. 1981. № 1. С. 85–95.
Судовиков Н. Г. Проблема рапакиви и позднеорогенных интрузий. М.; Л., 1967. 118 с.
Шарков Е. В. Протерозойские анортозит-рапакивигранитные комплексы Восточно-Европейского кратона — пример внутриплитного магматизма в условиях аномально мощной сиалической коры // Литосфера. 2005. № 4. С. 3–21.
Шебанов А. Д., Порицкий М. С. Морфология, свойства и генерации кварца в гранитах рапакиви (на примере Выборгского и Бердяушского массивов) // Записки РМО. 1993. Ч. 122, вып. 4. С. 77–89.
References
Velikoslavinsky D. A., Velikoslavinsky S. D. Berdiaushskii pluton ovoidnykh granitov: veshchestvennyi sostav i geodinamicheskoe polozhenie [Berdyaushsky pluton of ovoid granites: its composition and geodynamic setting]. Zapiski VMO, 2003, pt. CXXXII, no. 3, pp. 1–15. (In Russian)
Anortozit — rapakivigranitnaia formatsiia Vostochno — Evropeiskoi platformy [Anorthosit-rapakivigranites formation of the East-European craton]. Ed. by D. A. Velikoslavinsky. Leningrad, Nauka Publ., 1978. 296 p. (In Russian)
Belyaev A. M., Ermosh N. G. [To question of ovoides from rapakivi granites origin]. Materialy iubileinoi nauchnoi sessii k 100-letiiu N. G. Sudovikova [Materials of the jubilee scientific meeting to 100th anniversary of the N. G. Sudovikov]. St. Petersburg, St. Petersburg Univ. Press, 2003, pp. 41–44. (In Russian)
Belyaev A. M., Ermosh N. G., Smetannikova O. G. [Structural Features K-feldspar of the Rapakivi Granites and Related Rocks]. II Vserossiiskoe petrograficheskoe soveshchanie. Tezisy dokladov. Tom 3 [II All-Russian petrography meeting. Vol. 3]. Syktyvkar, 2000, pp. 22–23. (In Russian)
Belyaev A. M., Neymark L. A., Shebanov A. D. et al. Age and origin of mafic xenoliths from rapakivi granites of the Berdiaush massif (S. Urals, Russia). Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996, p. 6.
Belyaev A. M., Shebanov A. D. [Petrogenesis feature of the orbikular rapakivi granites from Salmi pluton (Karelia)]. Obrazovanie i lokalizatsiia rud v zemnoi kore [Forming and allocation ores in the Earth crust]. St. Petersburg, St. Petersburg Univ. Press, 1999, pp. 295–301. (In Russian)
Belyaev A. M. Petrogenesis of rapakivi granites and related rocks. Rapakivi granites and related rocks: Abstr. Vol. Symp. IGCP-315. Helsinki, Finland, 1991, p. 6.
Belyaev A. M. Petrologiia vulkanitov formatsii rapakivi (o. Gogland) [Petrology of volcanic rocks from the rapakivi formation (Island Hogland)]. Regional’naia geologiia i metallogeniia [J. Regional Geology and Metallogeny], 2013, no. 55, pp. 28–36. (In Russian)
Eklund O., Fröjdö S., Lindberg B. Magma mixing, the petrogenetic link between anorthositic suites and rapakivi granites, Åland, SW Finland. Mineral. Petrol, 1994, vol. 50, pp. 3–19.
Eklund O., Shebanov A. D. The origin of the rapakivi textures by subisothermal decompression. Precambrian Res., 1999, vol. 95, pp. 129–146.
Kirilov A. S., Belyaev A. M., Shebanov A. D. et al. Gas composition of fluid inclusions as an indicator of interaction process between mafic and rapakivi granite magmas. Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996, p. 35.
Larin A. M. Granity rapakivi i assotsiiruiushchie porody [Granites rapakivi and connected rocks]. St. Petersburg, Nauka Publ., 2011. 403 p. (In Russian)
Levkovski R. Z. Rapakivi. Leningrad, Nedra Publ., 1975. 230 p. (In Russian)
Müller A., Seltmann R., Kober B. et al. Compositional zoning of rapakivi feldspars and coexisting quartz phenocrysts. Can. Min., 2008, vol. 46, pp. 1417–1442.
Nekvasil H. Ascent of felsic magmas and formation of rapakivi. Am. Miner., 1991, vol. 76, pp. 1279–1290.
Ramo O. T., Haapala I. One hundred years of Rapakivi Granites. Mineralogy and Petrology, 1995, vol. 52, p. 129–185.
Ronkin Yu. L., Maslov A. V., Kazak A. P. The Lower–Middle Riphean Boundary in the Southern Urals: New Isotopic U–Pb (SHRIMP II) Constraints. Doklady Earth Sciences, 2007, vol. 415A, no. 6, pp. 835–840.
Salonsaari P. T. Hybridization in the subvolcanic Jaala-Iitti complex and its petrogenetic relation to rapakivi granites and associated mafic rocks of southern Finland. Bull. Geol. Soc. Finland, 1995, no. 67. 104 p.
Savatenkov V. M., Shebanov A. D., Belyaev A. M. Age, source, and conditions of formations of phenocryst-like quartz and ovoid-like alkali feldspar megakrysts in an altered hornfels at the contact aureol of the Salmi rapakivi batholith, Russian Karelia. Rapakivi Granites and Related Rocks: Correlation on a Global Scale (Abstr. Vol. IGCP-315 Symp.). Helsinki, Finland, 1996, p. 62.
Sharkov E. V. Proterozoiskie anortozit-rapakivigranitnye kompleksy Vostochno-Evropeiskogo kratona — primer vnutriplitnogo magmatizma v usloviiakh anomal’no moshchnoi sialicheskoi kory [Proterozoic anorthosite-rapakivi granite complexes of the East-European craton — an example of withinplate magmatism under conditions of anomalously thick sialic crust]. Litosfera [Lithosphere], 2005, no. 4, pp. 3–21. (In Russian)
Shebanov A. D., Poritsky M. S. Morfologiia, svoistva i generatsii kvartsa v granitakh rapakivi: (na primere Vyborgskogo i Berdiaushskogo massivov) [Morphology, properties and generations of quartz in rapakivi granites (example of Wiborg and Berdyaushsky plutons)]. Zapiski VMO, 1993, pt. 122, issue 4, pp. 77–89. (In Russian)
Soniushkin V. E. Elektronnaia mikroskopiia vkliuchenii mineraloobrazuiushchei sredy v kvartse [Electron microscopy of inclusions of mineral-forming environment in quartz]. Izvestiia Akademii nauk SSSR, seriia geologicheskaia [Proceedings of the Academy of Sciences of the USSR, series geological], 1981, no. 1, pp. 85–95 (In Russian).
Sudovikov N. G. Problema rapakivi i pozdneorogennykh intruzii [The problem of rapakivi and postorogen intrusions]. Moscow, Leningrad, 1967. 118 p. (In Russian)
Sviridenko L. P. Granity rapakivi fennoskandinavskogo shchita (na primere Karelii) [The rapakivi granites of the Fennoscandian Shield (the case of Karelia)]. Trudy Karel’skogo nauchnogo tsentra RAN [Transactions Karelian Research Centre RAS], 2014, no. 1, pp. 17–27. (In Russian)
Downloads
Published
2017-03-01
How to Cite
Беляев, А. М. (2017) “About the genesis of ovoidal K-feldspar and porphyry quartz in rapakivi granites and related rocks”, Vestnik of Saint Petersburg University. Earth Sciences, 62(1), pp. 3–19. doi: 10.21638/11701/spbu07.2017.101.
Issue
Section
Articles
License
Articles of "Vestnik of Saint Petersburg University. Earth Sciences" are open access distributed under the terms of the License Agreement with Saint Petersburg State University, which permits to the authors unrestricted distribution and self-archiving free of charge.
