XENOLITHS OF MAFIC GRANULITES FROM UDACHNAYA-EAST KIMBERLITE: EVIDENCE OF METAMORPHIC EVOLUTION
- Authors: Morozova A.1, Aranovich L.1, Pokhilenko L.2
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Affiliations:
- Институт геологии рудных месторождений, петрографии, минералогии и геохимии РАН
- Институт геологии и минералогии имени В. С. Соболева СО РАН
- Issue: Vol 525, No 2 (2025)
- Section: PETROLOGY
- Submitted: 22.07.2025
- Accepted: 21.08.2025
- Published: 16.09.2025
- URL: https://ogarev-online.ru/2686-7397/article/view/302499
- ID: 302499
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Abstract
We present data on petrography, bulk chemical composition and specifics of composition of coexisting minerals for 12 crustal xenoliths from Udachnaya-East kimberlite pipe. According to their mineral composition the xenoliths are mostly garnet-clinopyroxene-plagioclase (±orthopyroxene, quartz, and Fe-Ti-oxides) mafic granulites. Bulk composition of five of the studied samples fall into the “uncertainty zone” between meta-igneous and meta-sedimentary rocks. Estimates ot the Т-Р-parameters of mineral equilibria that take into account compositional heterogeneity of coexsisting minerals give ~860-910оС/10-14 kbar for the metamorphic peak, and 560-800оС/4-8 kbar for retrogression. The results indicate that the xenoliths were not mechanically coupled with underlying ultramafic upper mantle at the time of kimberlite intrusion (late Devonian), but had been tectonically exhumed to upper horisons in the crust during ancient metamorphic event.
About the authors
Anastasia Morozova
Институт геологии рудных месторождений, петрографии, минералогии и геохимии РАН
Author for correspondence.
Email: nastyamor2019@mail.ru
junior research assistant
Russian FederationLeonid Aranovich
Институт геологии рудных месторождений, петрографии, минералогии и геохимии РАН
Email: lyaranov@igem.ru
академик РАН, главный научный сотрудник, лаборатория метаморфизма и метасоматизма
Russian Federation, 119017 Москва, Старомонетный пер., 35Lyudmila Pokhilenko
Институт геологии и минералогии имени В. С. Соболева СО РАН
Email: lu@igm.nsc.ru
кандидат геолого-минералогических наук, старший научный сотрудник, лаборатория литосферной мантии и алмазных месторождений
Russian Federation, 630090 Новосибирск, пр. академика Коптюга, 3аReferences
- Rudnick R.L., Gao S. Composition of the Continental Crust. In: Holland H.D., Turekian K.K. (Eds.) // Treatise on Geochemistry (Second Edition). 2014. P. 1–51. https://doi.org/10.1016/ B978-0-08-095975-7.00301-6
- Jin T., Wang Q., Shatsky V., and Liao Y. Water Content and Deformation of the Lower Crust beneath the Siberian Craton: Evidence from Granulite Xenoliths // Journal of Geology. 2021. V. 129. P. 475-498
- Perchuk A.L., Sapegina A.V., Safonov O.G., et al. Reduced amphibolite facies conditions in the Precambrian continental crust of the Siberian craton recorded by mafic granulite xenoliths from the Udachnaya kimberlite pipe, Yakutia // Precambrian Research. 2021. V. 357. P. 106-122. https://doi.org/10.1016/j.precamres.2021.10612
- Koreshkova, M.Y., Downes, H., Levsky, L.K., Vladykin, N.V. Petrology and geochemistry of granulite xenoliths from Udachnaya and Komsomolskaya kimberlite pipes, Siberia // Journal of Petrology. 2011. V. 52 (10). P. 1857–1885. https://doi.org/10.1093/petrology/egr033
- Shatsky V.S. Buzlukova, L.V., Jagoutz E., Koz’menko O.A., and Mityukhin S.I. Structure and evolution of the lower crust of the Daldyn-Alakit district in the Yakutian Diamond Province (from data on xenoliths) // Russian Geology and Geophysics. 2005. V. 46. P. 1252–1270.
- Koreshkova M.Yu., Downes H., Nikitina L.P., et al. Trace element and age characteristics of zircons in granulite xenoliths from the Udachnaya kimberlite pipe, Siberia // Precambrian Research. 2009. V. 168. P. 197–212. doi: 10.1016/j.precamres.2008.09.007
- Whitney, D.L., Evans, B.W. Abbreviations for names of rock-forming minerals // American Mineralogist. 2010. V. 95 (1). P. 185–187. https://doi.org/10.2138/am.2010.3371.
- Shaw D.M. The origin of the Apsley gneiss, Ontario // Canadian Journal of Earth Sciences. 1972. V. 9. № 1. P. 18–35.
- Великославинский С.Д., Глебовицкий В.А., Крылов Д.П. Разделение силикатных осадочных и магматических пород по содержанию петрогенных элементов с помощью дискриминантного анализа // ДАН. 2013. Т. 453. № 3. С. 310–313.
- Aranovich L.Y, Safonov O.G. Halogens in High-Grade Metamorphism // In: D.E. Harlov and L. Aranovich (eds.) The Role of Halogens in Terrestrial and Extraterrestrial Geochemical Processes. Springer Geochemistry. 2018. P. 713-757. https://doi.org/10.1007/978-3-319-61667-4_11
- Berman R. G., Aranovich L. Y. Optimized standard state and solution properties of minerals. I. Model calibration for olivine, orthopyroxene, cordierite, garnet, and ilmenite in the system FeO-MgO-CaO-Al2O3-TiO2-SiO2. // Contrib. Mineral. Petrol. 1996. V. 126. P. 1–24
- Аранович Л.Я., Козловский В.М. Роль подвижности кремнезема в образовании «зарождающихся» эклогитов // Геохимия. 2009. № 2. С. 210–215.
- Fuhrman M,L,. Lindsley D.H. Ternary-feldspar modeling and thermometry // American Mineralogist. 1988. V. 73. Р. 201-215
- Tajčmanovà L., Connolly J.A.D., and Cesare B. A thermodynamic model for titanium and ferric iron solution in biotite // Journal of metamorphic Geology. 2009. V. 27. P. 153–165. doi: 10.1111/j.1525-1314.2009.00812.x
- Koreshkova, M., Downes, H., Stifeeva, M. et al. Metamorphic history of the Precambrian lower cratonic crust from U-Pb dating of granulite xenoliths (Anabar province, Siberia) // Contrib Mineral Petrology. 2024. 179/ 74. https://doi.org/10.1007/s00410-024-02156-7
- Perchuk L.L., Aranovich L.Y., Podlesskii K.K., et al. Precambrian granulites of the Aldan shield, eastern Siberia, USSR // Journal of Metamorphic Geology. 1985. V. 3. P. 265-310.
- Chen L., Liu X., Wang W., Liu J. Ultrahigh-Temperature Mafic Granulites in the Rauer Group, East Antarctica: Evidence from Conventional Thermobarometry, Phase Equilibria Modeling, and Rare Earth Element Thermometry // Journal of Petrology. 2023. V. 64. Issue 4. egad014. https://doi.org/10.1093/petrology/egad014
- Harley, S. L. The origins of granulites: a metamorphic perspective // Geological Magazine. 1989. V. 126(3). P. 215-247.
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