O.V. Dubyna, GÖTZENITE IN THE NEPHELINE SYENITES OF THE POKROVO-KYRIYIVO MASSIF (AZOV AREA, UKRAINE)
https://doi.org/10.15407/mineraljournal.46.02.019
UDC 549.552.33(477)
GÖTZENITE IN THE NEPHELINE SYENITES OF THE POKROVO-KYRIYIVO MASSIF (AZOV AREA, UKRAINE)
O.V. Dubyna 1, 2, DrSc (Geology), Associate Professor
E-mail: dubyna_a@ukr.net; orcid: 0000-0002-6003-4873
S.G. Kryvdik 1, DrSc (Geology and Mineralogy), Prof.
E-mail: kryvdik@ukr.net; orcid: 0000-0002-8356-1115
1 M.P. Semenenko Institute of Geochemistry, Mineralogy and Ore Formation of the NAS of Ukraine
34, Acad. Palladin Ave., Kyiv, Ukraine, 03142
2 Taras Shevchenko National University of Kyiv, Institute of Geology
90, Vasylkivska Str., Kyiv, Ukraine, 03022
Language: Ukrainian
Mineralogical journal 2024, 46 (2): 19-34
Abstract: The nepheline syenites of the Pokrovo-Kyriyivo massif in the junction zone of the Dnieper-Donets Rift and the Priazoviаn block of the Ukrainian Shield contain numerous of rare-metal minerals, among them götzenite is the most common. The nepheline syenites are divided into malignites (melanocratic, early) and juvites (leucocratic, late) based on their mineralogical characteristics. In both varieties, the götzenite is presented as euhedral or subhedral grains with a poikilitic texture (numerous rounded inclusions of nepheline). Among rock-forming minerals are observed feldspar, annite, aegirine (± alkaline amphibole), titanite, strontianite ± sodalite ± cancrinite ± Sr-apatite ± calcite ± natrolite. Usually götzenite in malignites has a 'patchy' zonation due to the presence of metasomatically altered areas in the central parts, which have a lower content of Ca, Na, Sr and F, and a higher Si, relative to the outer parts. In comparation to juvite, the götzenite of malignite is more enriched in Zr, Nb and REE, with a low Y content in both types of rocks. A notable feature of the götzenite is high Sr content (up to 3 wt. % SrO), but low Nb (often up to 1.3 wt. % Nb2O5) and REE (often up to 2.4, rarely up to 5.6 wt. % REE2O3). The occurrence of götzenite in nepheline syenites of the Pokrovo-Kyriyivo massif is related with the early stage of the alkaline silicate melt differentiation with increasing activity of Na and volatile components, especially F. During götzenite crystallization the majority of REE and HFSE remained in the fluid as soluble complexes and precipitate own minerals at the postmagmatic stage. This is confirmed by presence of fine inclusions of fluorobritholite-(Ce), strontianite and burbankite in cleavage fractures, in miarole-like inclusions — aeschynite-(Ce), pyrochlore group mineral, bastnaesite, burbankite, etc. The Sr enrichment of götzenite can be explained by early crystallization from an Sr-enriched alkaline silicate melt and the absence of another Ca-rich rock-forming minerals or by external introduction of CO2-F fluids enriched in Sr and REE separated from a carbonatite melt.
Keywords: nepheline syenites, götzenite, Ukrainian Shield.
References / Література
Andersen, T., Elburg, M. and Erambert, M. (2012), Lithos, Vol. 152, pp. 105-121. https://doi.org/10.1016/j.lithos.2012.04.018
Andersen, T., Erambert, M., Larsen, A.O. and Selbekk, R.S. (2013), Mineralogia, Vol. 44, No. 3-4, pp. 61-98. https://doi.org/10.2478/mipo-2013-0007
Atencio, D., Coutinho, J.M.V., Ulbricht, M.N.C., Vlach, S.R.F., Rastsvetaeva, R.K. and Pushcharovsky, D.Y. (1999), Canad. Mineral., Vol. 37(1), pp. 91-98.
Buturlinov, N.V., Gonshakova, V.I., Zaritskyi, A.I. et al. (1973), Basite-ultrabasite magmatism and mineralogy of the South part of the East European platform, Nedra, Moscow, pр. 171-263 [in Russian].
[Бутурлинов Н.В., Гоньшакова В.И., Зарицкий А.И. и др. (1973), Базит-ультрабазитовый магматизм и минерагения юга Восточно-Европейской платформы. Москва: Недра. С. 171—263.]
Cámara, F., Sokolova, E. and Hawthorne, F.C. (2011), Mineral. Mag., Vol. 75, No. 6, pp. 2755-2774. https://doi.org/10.1180/minmag.2011.075.6.2755
Christiansen, C.C., Johnsen, O. and Makovicky, E. (2003), Canad. Mineral., Vol. 41, pp. 1203-1224. https://doi.org/10.2113/gscanmin.41.5.1203
Dostal, J. (2016), Revs in Econ. Geol., Vol. 18, pp. 33-54. https://doi.org/10.5382/Rev.18.02
Dubyna, O.V. (2018), Mineral. Journ. (Ukraine), Vol. 40, No. 1, Kyiv, pp. 53-78 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.40.01.053
[Дубина, О.В. (2018), Мінерал. журн. 40, № 1. С. 53-78.]
Dubyna, A.V., Kryvdik, S.G. and Sharygin, V.V. (2014), Geochem. Int., Vol. 52, No. 10, pp. 842-856. https://doi.org/10.1134/S0016702914080023
Eliseev, N.A., Kushev, V.G. and Vinogradov, D.P. (1965), Proterozoic intrusive complex of Eastern Azov, Nauka, Moscow-Leningrad, 204 p. [in Russian].
[Елисеев, Н.А., Кушев, В.Г., Виноградов, Д.П. (1965), Протерозойский интрузивный комплекс Восточного Приазовья. Москва-Ленинград: Наука. 204 с.]
Giester, G., Pertlik, F. and Ulrych, J. (2005), Mitteilungen der Österreichischen Mineralogischen Geselschaft, Vol. 151, p. 45.
Konopleva, N.G., Ivanyuk, G.Yu., Pakhomovsky, Ya.A., Yakovenchuk, V.N., Mikhailova, Yu.A. and Selevanova, E.A. (2014), Zap. Ros. mineral. ob-va, Vol. 143, No. 5, pp. 97-113 [in Russian].
[Коноплева, Н.Г., Иванюк, Г.Ю., Пахомовский, Я.А., Яковенчук, В.Н., Михайлова, Ю.А., Селеванова, Е.А. (2014), Зап. Рос. минерал. об-ва. 143, № 5. С. 97—113.]
Horning-Kjarsgaard, I. (1998), J. Petrol., Vol. 39, Iss. 11-12, pp. 2105-2121. https://doi.org/10.1093/petroj/39.11-12.2105
Kryvdik, S.G., Sharygin, V.V., Gatsenko, V.O. and Lunev, E.S. (2016a), Coll. sci. papers UkrDGRI, No. 2, Kyiv, pp. 82-98 [in Ukrainian].
[Кривдік, С.Г., Шаригін, В.В., Гаценко, В.О., Луньов, Є.С. (2016a), Зб. наук. пр. УкрДГРІ. № 2. С. 82—98.]
Krуvdik, S.G., Sharygin, V.V., Gatsenko, V.O. and Lunev, E.S. (2016b), Mineral. Journ. (Ukraine), Vol. 38, No. 3, Kyiv, pp. 24-38 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.38.03.024
[Кривдік, С.Г., Шаригін, В.В., Гаценко, В.О., Луньов, Є.С. (2016), Мінерал. журн. 38, № 3. С. 24—38.]
Kryvdik, S.G., Sharygin, V.V., Gatsenko, V.O., Lunev, E.S. and Kushnir, S.V. (2017), Mineral. Journ. (Ukraine), Vol. 39, No. 2, Kyiv, pp. 29-45 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.39.02.029
[Кривдік, С.Г., Шаригін, В.В., Гаценко, В.О., Луньов, Є.С., Кушнір, С.В. (2017), Мінерал. журн. 39, № 2. С. 29—45.]
Marks, M.A.W. and Markl, G. (2017), Earth-Scien. Revws, Vol. 173, pp. 229-258. http://dx.doi.org/10.1016/j.earscirev.2017.06.002
Ponomarenko, A.N. (ed.) (2015), Phanerozoic magmatism of the Eastern Azov region of the Ukrainian Shield and related minerals (petrology, geochemistry and ore potential), Comprint, Kyiv, 318 p. [in Russian].
[Фанерозойский магматизм Восточного Приазовья Украинского щита и связанные с ним полезные ископаемые (петрология, геохимия и рудоносность). Под ред. А.Н. Пономаренко. Киев: Компринт. 318 с.]
Rastsvetaeva, R.K., Pushcharovskii, D.Y. and Atenzio, D. (1995), Crystallogr. Reps, Vol. 40, рр. 574-578.
Rønsbo, J.G., Sørensen, H., Roda-Robles, E., Fontan, F. and Monchoux, P. (2014), Bull. Geol. Soc. Denmark, Vol. 62, рр. 1-15. https://doi.org/10.37570/bgsd-2014-62-01
Sahama, T.G. and Hytönen, K. (1957), Mineral. Mag., Vol. 31, pp. 503-510. https://doi.org/10.1180/minmag.1957.031.238.01
Salvi, S., Fontan, F., Monchoux, P., Williams-Jones, A.E. and Moine, B. (2000), Econ. Geol., Vol. 95, pp. 559-576. https://doi.org/10.2113/gsecongeo.95.3.559
Schilling, J., Marks, M., Wenzel, T. and Markl, G., (2009), Canad. Mineral., Vol. 47, No. 2, pp. 351-365. https://doi.org/10.3749/canmin.47.2.351
Selivanova, E.A., Lyalina, L.M. and Savchenko, Y.E. (2018), Minerals, Vol. 8, pp. 458-470. https://doi.org/10.3390/min8100458
Sharygin, V.V. and Kryvdik, S.G. (2017), Mineral. Journ. (Ukraine), Vol. 39, No. 1, pp. 19-35 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.39.01.019
[Шаригін, В.В., Кривдік, С.Г. (2017), Мінерал. журн. 39, № 1. С. 19—35.]
Sharygin, V.V. and Kryvdik, S.G. (2018), Mineral. Journ. (Ukraine), Vol. 40, No. 2, Kyiv, pp. 3-16 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.40.02.003
[Шаригін, В.В., Кривдік, С.Г. (2018), Мінерал. журн. 40, № 2. С. 3—16.]
Sharygin, V.V., Stoppa, F. and Kolesov, B.A. (1996), Europ. J. Mineral., No. 8, pp. 1199-1212. https://doi.org/10.1127/ejm/8/5/1199
Shramenko, I.F., Stadnik, V.A. and Osadchiy, V.K. (1992), Geochemistry of Carbonatites from the Ukrainian Shield, Nauk. dumka, Kyiv, 212 p. [in Russian].
[Шраменко, И.Ф., Стадник, В.А., Осадчий, В.К. (1992), Геохимия карбонатитов Украинского щита. Киев: Наук. думка. 212 с.]
Stadnik, V.O. and Osadchiy, V.K. (1978), Dopov. AS UkrRSR, Ser. B, No. 11, Kyiv, pp. 983-988 [in Ukrainian]. https://doi.org/10.1016/S1474-6670(17)66044-0
[Стадник, В.О., Осадчий, В.К. (1978), Допов. АН УРСР. Сер. Б. № 11. С. 983—988.]
Tsarovskyi, I.D. (1964), in: Geology and geochronology of the Precambrian, Nauka, Moscow-Leningrad, pp. 272-276 [in Russian].
[Царовский, И.Д. (1964), В кн.: Геология и геохронология докембрия. Москва-Ленинград: Наука. С. 272—276.]
Valter, A.A., Eremenko, G.K. and Stremovskyi, A.M. (1963), Dokl. AS USSR, Vol. 150, No. 3, pp. 639-641 [in Russian].
[Вальтер, А.А., Еременко, Г.К., Стремовский, А.М. (1963), Докл. АН CCCР. 150, № 3. C. 639—641.]
Yang, X.M. and Le Bas, M.J. (2004), Lithos, Vol. 72(1), pp. 97-116. https://doi.org/10.1016/j.lithos.2003.09.002