Жизнь Земли. Междисциплинарный научно-практический журнал Life of the Earth 10.29003/m3447.0514-7468.2023_45_2/184-192 851 ЦИРКОН МЕТАМОРФИЧЕСКИХ ПОРОД.ОСОБЕННОСТИ КРИСТАЛЛОМОРФОЛОГИИ, ХИМИЗМА И ВНУТРЕННЕГО СТРОЕНИЯ ZIRCON OF METAMORPHIC ROCKS. FEATURES OF CRYSTAL MORPHOLOGY, CHEMISM AND ZONAL STRUCTURE Громалова Н.А. Gromalova, N.A. 14 06 2023 45 2 184 192 14 06 2023

Обобщена информация о кристалломорфологических особенностях циркона из метаморфических пород, его внутреннем строении, химизме кристаллической матрицы, распределении редкоземельных элементов. Эти данные позволяют выявить дискриминантные признаки циркона в зависимости от природы кристаллизуемого вещества и условий его преобразования в ходе метаморфизма. Для достоверной оценки содержания элементов в цирконе необходимо опираться на комплекс аналитических методик, поскольку концентрация примесей значительно варьирует даже в выборках из одной и той же породы. Это позволяет определить диапазон вариаций и оценить динамику распределения элементов в цирконах из метаморфических пород различного генезиса.

The article summarizes information of the crystal morphological features of zircon from metamorphic rocks, its internal structure, crystal matrix chemism, and rare earth element distribution. These data make it possible to reveal discriminant features of zircon as depend on the origin of the substance crystallized and the conditions of its transformation during metamorphism. For a reliable assessment of the content of elements in zircon, it is necessary to perform a set of analytical methods, since the concentration of impurities varies significantly even in samples from the same rock. This makes it possible to determine the range of variations and to evaluate the dynamics of the distribution of elements in zircons from metamorphic rocks of various genesis.

 цирконкристалломорфологиязональностькатодолюминесценцияраспределение редкоземельных элементовметаморфические породы zirconcrystal morphologyzoningcathodoluminescencedistribution of rare earth elementsmetamorphic rocks Бибикова Е.В. U-Pb геохронология ранних этапов развития древних щитов. М.: Наука, 1989. 180 с.Глебовицкий В.А., Саморукова Л.М., Седова И.С., Федосеенко А.М. Геохимия цирконов анатектической и диатектической стадий формирования мигматитов Северо-Западного Приладожья // ДАН. 2008. Т. 420. № 6. С. 813–817.Громалова Н.А. Циркон магматических пород как индикатор условий кристаллизации и источника материнских расплавов // Жизнь Земли. 2022. Т. 44. № 2. С. 150–166.Каулина Т.В. Образование и преобразование циркона в полиметаморфических комплексах // Апатиты: Изд-во Кольского науч. центра РАН, 2010. 114 с.Тугаринов А.И., Бибикова Е.В. Геохронология Балтийского щита. М.: Наука, 1980. 132 с.Bingen B., Davis W.J., Austrheim H. Zircon U-Pb geochronology in the Bergen arc eclogites and their Proterozoic protoliths, and implications for the pre-Scandian evolution of the Caledonides in western Norway // Geol Soc Am Bull. 2001. V. 113. P. 640–649.Corfu F., Hanchar J.M., Hoskin P.W.O., Kinny P. Atlas of zircon textures // Hanchar J.M., Hoskin P.W.O (eds). Zircon. Reviews in Mineralogy & Geochemistry. 2003. V. 53. P. 469–500.Hanchar J.M., Hoskin P.W.O. Zircon // Mineralogical Society of America, Washington. 2003. 500 p.Hoskin P.W.O. and Black L.P. Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircon // J. Metamor. Geol. 2000. № 18. P. 423-439.Hoskin P.W.O., Schaltegger U. The composition of zircon and igneous and metamorphic petrogenesis // Eds Hanchar J.M., Hoskin P.W.O. Reviews in Mineralogy and Geochemistry Mineral. Soc. Am. Geochem. Soc. Washington. 2003. V. 53. P. 27-62.Kelly N.M. and Harley S.L. An integrated microtextural and chemical approach to zircon geochronology: refining the Archaean history of the Napier Complex, east Antarctica // Contrib. Mineral. Petrol. 2005. V. 149. P. 57-84.Pidgeon R.T. Recrystallization of oscillatory zoned zircon: some geochronological and petrological implications // Contrib. Mineral. Petrol. 1992. V. 110. P. 463-472.Rubatto D., Williams I.S., Buick I.S. Zircon and monazite response to prograde metamorphism in the Reynolds Range, central Australia // Contrib. Mineral. Petrol. 2001. V. 140. P. 458-468.Rubatto D. Zircon trace element geochemistry: partitioning with garnet and the link between U-Pb ages and metamorphism // Chem. Geol. 2002. V. 184. P. 123–138.Rubatto D., Hermann J. Zircon formation during fluid circulation in eclogites (Monviso, Western Alps): Implications for Zr and Hf budget in subduction zones // Geochimica et Cosmochimica Acta. 2003. V. 67. № 12. P. 2173–2187.Schaltegger U., Fanning C.M., Gunther D., Maurin J.C., Schulmann K., Gebauer D. Growth, annealing and recrystallization of zircon and preservation of monazite in high-grade metamorphism: Conventional and in situ U-Pb isotope, cathodoluminescence and microchemical evidence // Contrib. Mineral. Petrol. 1999. V. 134. P. 186–201.Vavra G., Gebauer D., Schmid R., Compston W. Multiple zircon growth and recrystallization during polyphase Late Carboniferous to Triassic metamorphism in granulites of the Ivrea Zone (southern Alps): an ion microprobe (SHRIMP) study // Contrib. Mineral. Petrol. 1996. № 122. P. 337–358.Vavra G., Schmid R., Gebauer D. Internal morphology, habit and U-Th-Pb microanalysis of amphibolite-togranulite facies zircons: geochronology of the Ivrea zone (Southern Alps) // Contrib. Mineral. Petrol. 1999. V. 134. P. 337–404.Yuanbao W., Yongfei Z. Genesis of zircon and its constraints on interpretation of U-Pb age //Chinese Sci. Bull. 2004. 49. P. 1554–1569. Bibikova, E.V., U-Pb geochronology of the early stages of the development of ancient shields (Mos-cow: Nauka, 1989) (in Russian).Glebovitsky, V.A., Samorukova, L.M., Sedova, I.S., Fedoseyenko, A.M., “Geochemistry of zircons from the anatectic and diatectic stages of formation of migmatites in the Northwestern Ladoga region”, Doklady RAN 420 (6), 813–817 (2008) (in Russian).Gromalova, N.A., “Zircon of igneous rocks as an indicator of the conditions of crystallization and the source of parental melts”, Zhizn Zemli [Life of the Earth] 44 (2), 150–166 (2022) (in Russian).Kaulina, T.V., Formation and transformation of zircon in polymetamorphic complexes (Apa tity: Publishing House of the Kola Scientific Center of the Russian Academy of Sciences, 2010) (in Russian).Tugarinov, A.I., Bibikova, E.V., Geochronology of the Baltic Shield (Moscow: Nauka, 1980) (in Russian).Bingen, B., Davis, W.J., Austrheim, H., “Zircon U-Pb geochronology in the Bergen arc eclogites and their Proterozoic protoliths, and implications for the pre-Scandian evolution of the Caledonides in western Norway”, Geol. Soc. Am. Bull. 113, 640–649 (2001).Corfu, F., Hanchar, J.M., Hoskin, P.W.O., Kinny, P., “Atlas of zircon textures”, Zircon. Reviews in Mineralogy & Geochemistry 53, 469–500 (2003).Hanchar, J.M., Hoskin, P.W.O., “Zircon”, Mineral. Soc. of America (Washington, 2003).Hoskin, P.W.O., Black, L.P., “Metamorphic zircon formation by solid-state recrystallization of protolith igneous zircon”, J. Metamor. Geol. 18, 423–439 (2000).Hoskin, P.W.O., Schaltegger, U., “The composition of zircon and igneous and metamorphic petrogenesis”, Reviews in Mineralogy and Geochemistry Mineral. Soc. Am. Geochem. Soc. 53, 27–62 (2003).Kelly, N.M. and Harley, S.L., “An integrated microtextural and chemical approach to zircon geochronology: refining the Archaean history of the Napier Complex, east Antarctica”, Contrib. Mineral. Petrol. 149, 57–84 (2005).Pidgeon, R.T., “Recrystallization of oscillatory zoned zircon: some geochronological and pe-trological implications”, Contrib. Mineral. Petrol. 110, 463–472 (1992).Rubatto, D., Williams, I.S., Buick, I.S., “Zircon and monazite response to prograde metamorphism in the Reynolds Range, central Australia”, Contrib. Mineral. Petrol. 140, 458–468 (2001).Rubatto, D., “Zircon trace element geochemistry: partitioning with garnet and the link between U- Pb ages and metamorphism”, Chemical Geology 184, 123–138 (2002).Rubatto, D., Hermann, J., “Zircon formation during fluid circulation in eclogites (Monviso, Western Alps): Implications for Zr and Hf budget in subduction zones”, Geochimica et Cosmochimica Acta 67 (12), 2173–2187 (2003).Schaltegger, U., Fanning, C.M., Gunther, D., Maurin, J.C., Schulmann, K., Gebauer, D., “Growth, annealing and recrystallization of zircon and preservation of monazite in high-grade metamorphism: Conventional and in situ U-Pb isotope, cathodoluminescence and microchemical evidence”, Contrib. Mineral. Petrol. 134, 186–201 (1999).Vavra, G., Gebauer, D., Schmid, R., Compston, W., “Multiple zircon growth and recrystallization during polyphase Late Carboniferous to Triassic metamorphism in granulites of the Ivrea Zone (southern Alps): an ion microprobe (SHRIMP) study”, Contrib. Mineral. Petrol. 122, 337–358 (1996).Vavra, G., Schmid, R., Gebauer, D., “Internal morphology, habit and U-Th-Pb microanalysis of amphibolite-togranulite facies zircons: geochronology of the Ivrea zone (Southern Alps)”, Contrib. Mineral. Petrol. 134, 337–404 (1999).Yuanbao, W., Yongfei, Z., “Genesis of zircon and its constraints on interpretation of U-Pb age”, Chinese Sci. Bull. 49, 1554–1569 (2004).