gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2025-16-6-0860PMKNEDgtcrust-2151Research ArticleПАЛЕОГЕОДИНАМИКАPALEOGEODYNAMICSГРЕНВИЛЬСКИЙ ЗОНАЛЬНЫЙ МЕТАМОРФИЗМ БАРРОУССКОГО ТИПА В ИШЕРИМСКОМ АНТИКЛИНОРИИ (СЕВЕРНЫЙ УРАЛ)GRENVILLE ZONAL BARROW-TYPE METAMORPHISM IN THE ISHERIM ANTICLINORIUM (NORTHERN URALS)https://orcid.org/0000-0001-5364-350XПетровГ. А.PetrovG. A.

620016, Екатеринбург, ул. Академика Вонсовского, 15

15 Academician Vonsovsky St, Ekaterinburg 620016

georg_petrov@mail.ruhttps://orcid.org/0000-0002-6484-2042БалтыбаевШ. К.BaltybaevS. K.

199034, Санкт­-Петербург, наб. Макарова, 2

199034, Санкт-­Петербург, наб. Университетская, 7/9

2 Makarov Emb, Saint Petersburg, 199034

7-9 Universitetskaya Emb, Saint Petersburg 199034 

Институт геологии и геохимии им. А.Н. Заварицкого УрО РАНРоссияZavaritsky Institute of Geology and Geochemistry, Ural Branch of the Russian Academy of SciencesRussian FederationИнститут геологии и геохронологии докембрия РАН ; Санкт-­Петербургский государственный университетРоссияInstitute of Precambrian Geology and Geochronology, Russian Academy of Sciences ; Saint Petersburg UniversityRussian Federation202511122025166860860Copyright © Петров Г.А., Балтыбаев Ш.К., 20252025Петров Г.А., Балтыбаев Ш.К.Petrov G.A., Baltybaev S.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/2151

Актуальность работы определяется слабой изученностью метаморфических процессов в докембрийских комплексах Урала. Объектом исследования является белокаменский метаморфический комплекс Ишеримского антиклинория Северного Урала. Цель работы заключалась в характеристике метаморфических преобразований и определении РТ-параметров образования пород белокаменского комплекса на основе анализа состава минералов и пород. РТ-оценки получены путем применения метода мультиравновесной геотермобарометрии (winTWQ), а для определения общих закономерностей метаморфического минералообразования производился расчет РТ-диаграмм фазовых равновесий на основе минимизации энергии Гиббса. Выявлены параметры пикового метаморфизма: Т=619 °С, Р=7.4 кбар, и сделан вывод о прогрессивном характере метаморфического процесса с закономерным латеральным развитием зон хлоритоида, хлорита, ставролита и кианита с запада на восток в современных координатах. Установленный среднетемпературный умеренно высокобарический тип метаморфизма белокаменского комплекса, датированный ранее возрастом 973±49 млн лет, позволяет связать его с проявлением гренвильской орогении.

The relevance of the work is determined by a poor knowledge of metamorphic processes in the Precambrian complexes of the Urals. The object of the study is the Belokamenka metamorphic complex of the Ishemir anticlinorium of the Northern Urals. The aim of the work was to characterize and determine the PT-parameters of metamorphic transformations of the rocks of the Belokamenka complex based on the analysis of mineral and rock compositions. PT-estimates were obtained by applying the multi-equilibrium geothermobarometry (winTWQ) method. To determine the general patterns of metamorphic mineral formation, PT-diagrams of phase equilibria were also calculated based on the minimization of the Gibbs energy. The peak metamorphism parameters – T=619 °C, P=7.4 kbar – were determined, and a conclusion was made about the progressive nature of the metamorphic process in the E-W trending, regular lateral zones of chloritoid, chlorite, staurolite and kyanite. The medium-temperature moderate-to-high-pressure type of metamorphism revealed for the Belokamenka complex, which dates back to 973±49 Ma, allows us to associate it with the areas of manifestation of the Grenville orogeny.

Северный Уралгренвильская орогенияметаморфизм кианит-силлиманитового типаNorthern UralsGrenville orogenykyanite-sillimanite type of metamorphismИсследования проведены в рамках госзадания ИГГ УрО РАН (проект № 123011800013-6) с использованием оборудования ЦКП «Геоаналитик» ИГГ УрО РАН и темы НИР ИГГД РАН (№ FMUW-2022-0002) Минобрнауки РФ.The research was conducted in accordance with the topic of the state assignment of the IGG UB RAS (project No. 123011800013-6) using the equipment of the Shared Research Facilities "Geoanalyst" of the IGG UB RAS, and the topic of research work of the IPGG RAS (No. FMUW-2022-0002) of the Ministry of Science and Higher Education of the Russian Federation.ReferencesBerman R.G., 1991. Thermobarometry Using Multiequilibrium Calculations: A New Technique with Petrologic Applications. Canadian Mineralogist 29 (4), 833–855.Berman R.G., 1991. Thermobarometry Using Multiequilibrium Calculations: A New Technique with Petrologic Applications. Canadian Mineralogist 29 (4), 833–855.Berman R.G., 2007. WinTWQ: A Software Package for Performing Internally-Consistent Thermobarometric Calculations. Version 2.3. Geological Survey of Canada, Open File 5462, 41 p. https://doi.org/10.4095/223228.Berman R.G., 2007. WinTWQ: A Software Package for Performing Internally-Consistent Thermobarometric Calculations. Version 2.3. Geological Survey of Canada, Open File 5462, 41 p. https://doi.org/10.4095/223228.Berman R.G., Aranovich L.Y., Rancourt P., Mercier P.H., 2007. Reversed Phase Equilibrium Constraints on the Stability of Mg-Fe-Al Biotite. American Mineralogist 92 (1), 139–150. https://doi.org/10.2138/am.2007.2051.Berman R.G., Aranovich L.Y., Rancourt P., Mercier P.H., 2007. Reversed Phase Equilibrium Constraints on the Stability of Mg-Fe-Al Biotite. American Mineralogist 92 (1), 139–150. https://doi.org/10.2138/am.2007.2051.Bingen B., Nordgulen Ø., Viola G., 2008. A Four-Phase Model for the Sveconorwegian Orogeny, SW Scandinavia. Norwegian Journal of Geology 88, 43–72.Bingen B., Nordgulen Ø., Viola G., 2008. A Four-Phase Model for the Sveconorwegian Orogeny, SW Scandinavia. Norwegian Journal of Geology 88, 43–72.Evans D.A.D., 2009. The Palaeomagnetically Viable, Long-Lived and All-Inclusive Rodinia Supercontinent Reconstruction. In: J.B. Murphy, J.D. Keppie, A.J. Hynes (Eds), Ancient Orogens and Modern Analogues. Geological Society of London Special Publications 327, p. 371–404. https://doi.org/10.1144/SP327.16.Evans D.A.D., 2009. The Palaeomagnetically Viable, Long-Lived and All-Inclusive Rodinia Supercontinent Reconstruction. In: J.B. Murphy, J.D. Keppie, A.J. Hynes (Eds), Ancient Orogens and Modern Analogues. Geological Society of London Special Publications 327, p. 371–404. https://doi.org/10.1144/SP327.16.Глебовицкий В.А., 1973. Проблемы эволюции метаморфических процессов в подвижных областях. Л.: Наука, 128 с.Glebovitsky V.A., 1973. Problems of the Evolution of Metamorphic Processes in Mobile Areas. Nauka, Leningrad, 128 p. (in Russian)Кориковский С.П. Фации метаморфизма метапелитов. М.: Наука, 1979. 269 с.Korikovsky S.P., 1979. Metamorphic Facies of Metapelites. Nauka, Moscow, 269 p. (in Russian)Кориневский Е.В., PetroExplorer – система для создания геохимических информационно-аналитических массивов в процессе тематических исследований // Геоинформатика. 2015. № 4. С. 48–53.Korinevsky E.V., 2015. PetroExplorer – System for Creation of Geochemical Information-Analytical Arrays in the Process of Thematic Investigations. Geoinformatics 4, 48–53 (in Russian)Кузнецов Н.Б. Кембрийская коллизия Балтики и Арктиды – начальный этап «собирания » северной части позднепалеозойско-раннемезозойской Пангеи // Бюллетень МОИП. Отдел геологический. 2009. Т. 84. Вып. 1. С. 18–38.Kuznetsov N.B., 2009. Cambrian Collision of Baltica and Arctica – The Initial Stage of "Assembly" of the Northern Part of the Late Palaeozoic – Early Mesozoic Pangea. Bulletin of Moscow Society of Naturalists. Geological Series 84 (1), 18–38 (in Russian)Li Z.X., Bogdanova S.V., Collins A.S., Davidson A., De Waele B., Ernst R.E., Fitzsimons I.C.W., Fuck R.A. et al., 2008. Assembly, Configuration, and Break-Up History of Rodinia: A Synthesis. Precambrian Research 160 (12), 179–210. https://doi.org/10.1016/j.precamres.2007.04.021.Li Z.X., Bogdanova S.V., Collins A.S., Davidson A., De Waele B., Ernst R.E., Fitzsimons I.C.W., Fuck R.A. et al., 2008. Assembly, Configuration, and Break-Up History of Rodinia: A Synthesis. Precambrian Research 160 (12), 179–210. https://doi.org/10.1016/j.precamres.2007.04.021.Лиханов И.И., Ревердатто В.В., Ножкин А.Д., Козлов П.С. Свидетельства гренвильских и вальгальских тектонических событий на западной окраине Сибирского кратона (Ангарский комплекс, Енисейский кряж) // Геосферные исследования. 2024. № 2. С. 6–36. DOI:10.17223/25421379/31/1.Likhanov I.I., Reverdatto V.V., Nozhkin A.D., Kozlov P.S., 2024. Evidence of Grenville and Valgalian Tectonic Events on the Western Margin of the Siberian Craton (Angara Complex, Yenisei Ridge). Geospheric Research 2, 6–36 (in Russian) DOI:10.17223/25421379/31/1.Maslov A.V., Ronkin Y.L., Podkovyrov V.N., Gareev E.Z., 2014. Contribution of Grenvillian Events to the Formation of Most Complete Riphean Sedimentary Successions in Northern Eurasia. Stratigraphy and Geological Correlation 22 (2), 160–174. https://doi.org/10.1134/S0869593814020063.Maslov A.V., Ronkin Y.L., Podkovyrov V.N., Gareev E.Z., 2014. Contribution of Grenvillian Events to the Formation of Most Complete Riphean Sedimentary Successions in Northern Eurasia. Stratigraphy and Geological Correlation 22 (2), 160–174. https://doi.org/10.1134/S0869593814020063.Metelkin D.V., Vernikovsky V.A., Matushkin N.Yu., 2015. Arctida Between Rodinia and Pangea. Precambrian Research 259, 114–129. http://doi.org/10.1016/j.precamres.2014.09.013.Metelkin D.V., Vernikovsky V.A., Matushkin N.Yu., 2015. Arctida Between Rodinia and Pangea. Precambrian Research 259, 114–129. http://doi.org/10.1016/j.precamres.2014.09.013.Petrov G.A., Ronkin Yu.L., Maslov A.V., 2015. Repercussions of the Grenvillian Orogeny in Riphean Sequences of the Northern Urals: Thermodynamic Parameters of Metamorphism and Sr-Nd Isotopic Constraints. Doklady Earth Sciences 462 (2), 575–580. https://doi.org/10.1134/S1028334X15060215.Petrov G.A., Ronkin Yu.L., Maslov A.V., 2015. Repercussions of the Grenvillian Orogeny in Riphean Sequences of the Northern Urals: Thermodynamic Parameters of Metamorphism and Sr-Nd Isotopic Constraints. Doklady Earth Sciences 462 (2), 575–580. https://doi.org/10.1134/S1028334X15060215.Petrov G.A., Tristan N.I., Ronkin Yu.L., Kozlov P.S., Popov N.V., 2009. Two Stages of High-Pressure Metamorphism in the Main Uralian Fault Area (Northern Urals). Russian Geology and Geophysics 50 (1), 43–45.Petrov G.A., Tristan N.I., Ronkin Yu.L., Kozlov P.S., Popov N.V., 2009. Two Stages of High-Pressure Metamorphism in the Main Uralian Fault Area (Northern Urals). Russian Geology and Geophysics 50 (1), 43–45.Пучков В.Н. Геология Урала и Приуралья (актуальные вопросы стратиграфии, тектоники, геодинамики и металлогении). Уфа: ДизайнПолиграфСервис, 2010. 280 с.Puchkov V.N., 2010. Geology of the Urals and Cis-Urals (Actual Problems of Stratigraphy, Tectonics, Geodynamics and Metallogeny). DizaynPoligrafServis, Ufa, 280 p. (in Russian)Пыстин А.М., Пыстина Ю.И. Метаморфизм и гранитообразование в протерозойско-раннепалеозойской истории формирования Приполярноуральского сегмента земной коры // Литосфера. 2008. № 6. С. 25–38.Pystin A.M., Pystina Yu.I., 2008. Metamorphism and Granite Formation in the Proterozoic – Early Paleozoic History of the Formation of the Subpolar Segment of the Earth’s Crust. Lithosphere 6, 25–38 (in Russian)Riel N., Kaus B.J.P., Green E.C.R., Berlie N., 2022. MAGEMin, an Efficient Gibbs Energy Minimizer: Application to Igneous Systems. Geochemistry, Geophysics, Geosystems 23 (7), e2022GC010427. https://doi.org/10.1029/2022GC010427.Riel N., Kaus B.J.P., Green E.C.R., Berlie N., 2022. MAGEMin, an Efficient Gibbs Energy Minimizer: Application to Igneous Systems. Geochemistry, Geophysics, Geosystems 23 (7), e2022GC010427. https://doi.org/10.1029/2022GC010427.Фации регионального метаморфизма высоких давлений / Ред. В.С. Соболев. М.: Недра, 1974. 328 с.Sobolev V.S. (Ed.), 1974. Facies of Regional High-Pressure Metamorphism. Nedra, Moscow, 328 p. (in Russian)Вернон Р.Х. Метаморфические процессы, реакции и развитие микроструктуры. М.: Недра, 1980. 227 с.Vernon R.H., 1980. Metamorphic Processes, Reactions and the Development of Microstructure. Nedra, Moscow, 227 p. (in Russian)Weber B., Köhler H., 1999. Sm-Nd, Rb-Sr and U-Pb Geochronology of a Grenville Terrane in Southern Mexico: Origin and Geologic History of the Guichicovi Complex. Precambrian Research 96 (3–4), 245–262. https://doi.org/10.1016/S0301-9268(99)00012-1.Weber B., Köhler H., 1999. Sm-Nd, Rb-Sr and U-Pb Geochronology of a Grenville Terrane in Southern Mexico: Origin and Geologic History of the Guichicovi Complex. Precambrian Research 96 (3–4), 245–262. https://doi.org/10.1016/S0301-9268(99)00012-1.White R.W., Powell R., Holland T.J.B., Johnson T.E., Green E.C.R., 2014. New Mineral Activity-Composition Relations for Thermodynamic Calculations in Metapelitic Systems. Journal of Metamorphic Geology 32 (3), 261–286. https://doi.org/10.1111/jmg.12071.White R.W., Powell R., Holland T.J.B., Johnson T.E., Green E.C.R., 2014. New Mineral Activity-Composition Relations for Thermodynamic Calculations in Metapelitic Systems. Journal of Metamorphic Geology 32 (3), 261–286. https://doi.org/10.1111/jmg.12071.

The authors declare that there are no conflicts of interest present.