L.M. Stepanyuk, THE U-Pb ZIRCON GEOCHRONOLOGY (LA-ICP-MS) OF GEOLOGICAL PROCESSES IN GRANULITES OF MIDDLE BOUH AREA. A r t i c l e 3. Rock association in the lower reaches of the Yatran river

https://doi.org/10.15407/mineraljournal.43.01.034

UDC 550.93

THE U-Pb ZIRCON GEOCHRONOLOGY (LA-ICP-MS) OF GEOLOGICAL PROCESSES IN GRANULITES OF MIDDLE BOUH AREA. A r t i c l e 3. Rock association in the lower reaches of the Yatran river 

L.M. Stepanyuk, DrSc (Geology), Corresponding 

member of NAS of Ukraine, Prof., Deputy director

M.P. Semenenko Institute of Geochemistry,

Mineralogy and Ore Formation of the NAS of Ukraine

34, Acad. Palladin Ave., Kyiv, Ukraine, 03142

E-mail: stepaniuk@nas.gov.ua; https://orcid.org/0000-0001-5591-5169

L.V. Shumlyanskyy, DrSc (Geology), Senior Research Fellow, Leading Researcher

M.P. Semenenko Institute of Geochemistry,

Mineralogy and Ore Formation of the NAS of Ukraine

34, Acad. Palladin Ave., Kyiv, Ukraine, 03142

E-mail: lshumlyanskyy@yahoo.com; http://orcid.org/0000-0002-6775-4419

S.I. Kurylo, PhD (Geology), Research Fellow

Earth Science Institute Slovak Academy of Sciences 

974 01, Banska Bystrica, Slovakia, Ďumbierska, 1

E-mail: kurylo.sergiy@gmail.com; https://orcid.org/0000-0003-4466-6851

V.O. Syomka, DrSc (Geology), Senior Research Fellow, Leading Researcher

M.P. Semenenko Institute of Geochemistry,

Mineralogy and Ore Formation of the NAS of Ukraine

34, Acad. Palladin Ave., Kyiv, Ukraine, 03142

E-mail: syomka1949@gmail.com; https://orcid.org/0000-0001-5202-4045

S.M. Bondarenko, PhD (Geology), Senior Research Fellow

M.P. Semenenko Institute of Geochemistry,

Mineralogy and Ore Formation of the NAS of Ukraine

34, Acad. Palladin Ave., Kyiv, Ukraine, 03142

E-mail: sbond.igmr@gmail.com; https://orcid.org/0000-0001-7948-3583

S.A. Wilde, Prof. Curtin University, School of Earth and Planetary Sciences

GPO Box U1987, Perth WA 6845 Australia 

E-mail: s.wilde@curtin.edu.au; http://orcid.org/0000-0002-4546-8278

А.А. Nemchin, Prof. Curtin University, School of Earth and Planetary Sciences

GPO Box U1987, Perth WA 6845 Australia 

E-mail: A.Nemchin@curtin.edu.au; http://orcid.org/0000-0002-3955-3409

Language: Ukrainian

Mineralogical journal 2021, 43 (1): 34-50

Abstract: LA-ICP-MS method was applied to investigate U-Pb and Lu-Hf isotope systematics of zircon crystals from charnockitic gneiss and biotite-garnet-hypersthene enderbite that occur in the lower reaches of the Yatran river (Yatran block of the Bouh river area). According to the obtained isotope data, charnockitic gneiss hosts three zircon populations. The oldest one is represented by three crystals that have isotope age between 3125 and 3300 Ma, and εHf values between –2.3 and –7.5. The next population is well-defined, it has an age of 2038±25 Ma and large variations of Hf isotope composition: 176Hf/177Hf — from 0.28122 to 0.28261, εHf — from –9.3 до 4.6. However, the ages of most of the analyzed zircons spread along the concordia between 2300 and 2800 Ma. All zircons in this population have a similar Hf isotope composition 176Hf/177Hf = 0.28072 to 0.28092, which does not depend on the age. It is characteristic that the oldest (with preserved U-Pb isotope systematics) crystals have positive or slightly negative εHf values. Most of the U-Pb isotope analyses of zircons from enderbite fall on the discordia line that has an upper interception age of 2029 ± 18 Ma. A small number of discordant grains have 207Pb/206Pb ages up to 2500 Ma. Hafnium isotope composition in zircons from enderbite varies widely: 176Hf/177Hf = 0.28131 to 0.28151, and εHf from –6.2 to 1.8.

Keywords: Middle Bouh area, granulite association, charnockitic gneiss, zircon, enderbite, U-Pb isotope ages.

References:

1. Artemenko, G.V., Samborska, I.A., Shvaika, I.A., Gogolev, K.I. and Dovbush, T.I. (2018), Mineral. Journ. (Ukraine), Vol. 40, No. 2, Kyiv, UA, pp. 45-62 [in Russian]. https://doi.org/10.15407/mineraljournal.40.02.045

2. Gintov, O.B., Entin, V.A., Mychak, S.V., Pavlyuk, V.N. and Zyultsle, V.V. (2016), Geophys. Journ., Vol. 38, No. 3, Kyiv, UA, pp. 3-28 [in Russian]. https://doi.org/10.24028/gzh.0203-3100.v38i3.2016.107777

3. Gintov, O.B. and Shevchuk, V.V. (2017). The structuredness of the Ukrainian Shield and features of the Early Precambrian fault formation on the example of the Holovanivsk suture zone, TOV "NVP Interservis", Kyiv, UA, 162 p. [in Ukrainian].

4. (2004) State geological map of Ukraine. Scale 1 : 200 000. Sheet М-36-ХХХІ (Pervomaisk). State geol. survey, Kyiv [in Ukrainian].

5. Mychak, S., Kurylo, S. and Murovskaya, A. (2018). Visnyk Taras Shevchenko National Univ. of Kyiv, Geology, No. 1 (80), Kyiv, UA, pp. 23-32 [in Russian]. http://doi.org/10.17721/1728-2713.80.03

6. Ponomarenko, A.N., Stepanyuk, L.M. and Shumlyanskyy, L.V. (2014), Mineral. Journ. (Ukraine), Vol. 36, No. 2, Kyiv, UA, pp. 48-60 [in Russian]. 

7. Stepanyuk, L.M., Dovbush, T.I., Kurylo, S.I. and Lisna, I.M. (2016), Geochemistry and Ore Formation, Vol. 36, Kyiv, UA, pp. 72-81 [in Ukrainian]. https://doi.org/10.15407/gof.2016.36.072

8. Stepanyuk, L.M., Gintov, O.B., Mychak, S.V., Kurylo, S.I., Dovbush, T.I., Ziultsle, O.V., Syomka, V.A., Bondarenko, S.N. and Kovalenko, N.A. (2018), Geochemistry and Ore Formation, Vol. 39, Kyiv, UA, pp. 24-35 [in Ukrainian]. https://doi.org/10.15407/gof.2018.39.024

9. Stepanyuk, L.M., Shumlyanskyy, L.V., Gatsenko, V.O., Lisna, I.M., Dovbush, T.I., Wilde, S.A., Nemchin, A.A., Bagiński, B. and Bilan, O.V. (2020), Mineral. Journ. (Ukraine), Vol. 42, No. 3, Kyiv, UA, pp. 50-68 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.42.03.050

10. Stepanyuk, L.M., Shumlyanskyy, L.V., Wilde, S.A., Nemchin, A.A. and Bilan, O.V. (2020), Mineral. Journ. (Ukraine), Vol. 42, No. 4, Kyiv, UA, pp. 84-103 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.42.04.084

11. Shumlyanskyy, L.V. (2012), Mineral. Journ. (Ukraine), Vol. 34, No. 2, Kyiv, UA, pp. 64-79 [in Ukrainian]. 

12. Shumlyanskyy, L.V., Stepanyuk, L.M., Claesson, S., Rudenko, K.V. and Bekker, A. (2018), Mineral. Journ. (Ukraine), Vol. 40, No. 2, Kyiv, UA, pp. 63-85 [in Ukrainian]. https://doi.org/10.15407/mineraljournal.40.02.063

13. Shcherbakov, I.B. (1975), Petrography of Precambrian rocks of the central part of the Ukrainian Shield, Nauk. dumka, Kyiv, UA, 278 p. [in Russian].

14. Bibikova, E.V., Claesson, S., Fedotova, A.A., Stepanyuk, L.M., Shumlyanskyy, L.V., Kirnozova, T.I., Fugzan, M.M. and Il'insky, L.S. (2013), Geochem. Intl., Vol. 51 (2), pp. 87-108. https://doi.org/10.1134/S0016702913020031

15. Claesson, S., Bibikova, E., Shumlyanskyy, L., Dhuime, B. and Hawkesworth, C. (2015), in Van Kranendonk, N.M.W., Parman, S., Shirey, S. and Clift, P.D. (eds), Continent Formation Through Time. Geological Society, London, Spec. Publ., Vol. 389, pp. 227-259. https://doi.org/10.1144/SP389.9

16. Shumlyanskyy, L., Wilde, S.A., Nemchin, A.A., Claesson, S., Billström, K. and Bagiński, B. (2020), Precam. Res. https://doi.org/10.1016/j.precamres.2020.106001

PDF 

Англійська