Доклады Академии наукДоклады Академии наук0869-5652The Russian Academy of Sciences1793610.31857/S0869-56524892170-173Research ArticleOxygen isotope composition of zircons from the Talnakh economic intrusion of the Noril’sk province: first dataBadaninaI. Yu.innabadanina@yandex.ruBelousovaE. A.innabadanina@yandex.ruMalitchK. N.innabadanina@yandex.ruSluzhenikinS. F.innabadanina@yandex.ruInstitute of Geology and Geochemistry, Ural Branch of the Russian Academy of SciencesMacquarie UniversityInstitute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Sciences2011201948921701730112201901122019Copyright © 2019, Russian academy of sciences2019<p>This study presents the first results of oxygen isotope analyses (<sup>18</sup>O) collected on zircons from the Talnakh economic intrusion within the Norilsk province. Zircons from gabbro-diorite, gabbroic rocks of the layered series and plagioclase-bearing wehrlite have similar mantle-like mean <sup>18</sup>O values (5,39 0,49; 5,64 0,48 and of 5,28 0,34, respectively), which differ from <sup>18</sup>O in zircons from sulfide-bearing melanocratic troctolite with a taxitic texture in the lower part of the intrusion (mean <sup>18</sup>O = 6,50 0,98). These new oxygen isotope data support (i) the mantle-derived origin of the primary magma(s), parental to the Talnakh intrusion, and (ii) possible involvement of a crustal component during the formation of sulfide-bearing taxitic-textured rocks.</p>zirconoxygen isotope compositionmantle-derived magmasTalnakh economic intrusionNoril’sk provinceRussiaцирконизотопный состав кислородамантийные магмыТалнахский промышленно-рудоносный интрузивНорильская провинцияРоссия[Дистлер В. В., Гроховская Т. Л., Евстигнеева Т. Л., Служеникин С. Ф., Филимонова А. А., Дюжиков О. А., Лапутина И. П. Петрология сульфидного магматического рудообразования. М.: Наука, 1988. 232 с.][Золотухин В. В., Рябов В. В., Васильев Ю. Р., Шатков В. А. Петрология Талнахской рудоносной дифференцированной трапповой интрузии. Новосибирск: Наука, 1975. 432 с.][Малич К. Н., Баданина И. Ю., Белоусова Е. А., Туганова Е. В. // Геология и геофизика. 2012. Т. 53. № 2. С. 163-172.][Малич К. Н., Баданина И. Ю., Туганова Е. В. // Литосфера. 2010. № 5. С. 37-63.][Покровский Б. Г., Служеникин С. Ф., Криволуцкая Н. А. // Петрология. 2005. T. 13. № 1. C. 56-80.][Cavosie A. J., Kita N. T., Valley J. W. // Amer. Mineral. 2009. V. 94. P. 926-934.][Dobretsov N. L., Kirdyashkin A. A., Kirdyashkin A. G., Vernikovsky V. A., Gladkov I. N. // Lithos. 2008. V. 100. P. 66-92.][Kita N. T., Ushikubo T., Fu B., Valley J. W. // Chem. Geol. 2009. V. 264. P. 43-57.][Malitch K. N., Belousova E. A., Griffin W. L., Badanina I.Yu., Pearson N. J., Presnyakov S. L., Tuganova E. V. // Contribs Mineral. and Petrol. 2010. V. 159. № 6. P. 753-768.][Malitch K. N., Belousova E. A., Griffin W. L., Badanina I.Yu., Latypov R. S., Sluzhenikin S. F. Chapter 7 - New Insights on the Origin of Ultramafic-Mafic Intrusions and Associated Ni-Cu-PGE Sulfide Deposits of the Noril’sk and Taimyr Provinces, Russia: Evidence from Radiogenic- and Stable-Isotope Data. In: Processes and Ore Deposits of Ultramafic Magmas through Space and Time (Mondal S., Griffin W. L. eds.). 1st ed. Elsevier, 2018. Р. 197-238.][Martin L., Duchêne S., Deloule E., Vanderhaeghe O. // Lithos. 2006. V. 87. P. 174-192.][Martin L. A.J., Duchêne S., Deloule E., Vanderhaeghe O. // Earth and Planet. Sci. Lett. 2008. V. 267. P. 161-174.][Naldrett A. J. Magmatic Sulfide Deposits. B.; Heidelberg: Springer, 2004. 727 pp.][Valley J. W. // Revs Mineral. and Geochem. 2003. V. 53. P. 343-385.][Valley J.W., Kinny P. D., Schulze D. J., Spicuzza M. J. // Contribs Mineral. and Petrol. 1998. V. 133. P. 1-11.]