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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">litosphere</journal-id><journal-title-group><journal-title xml:lang="ru">Литосфера</journal-title><trans-title-group xml:lang="en"><trans-title>LITHOSPHERE (Russia)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1681-9004</issn><issn pub-type="epub">2500-302X</issn><publisher><publisher-name>A.N. Zavaritsky Institute of Geology and Geochemistry</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24930/1681-9004-2023-23-5-868-886</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-1956</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>Редкоэлементный состав циркона из гранитоидов неоархейской щелочной провинции Кольского полуострова</article-title><trans-title-group xml:lang="en"><trans-title>Trace element composition of zircon from granitoids of the Neoarchean alkaline province of the Kola Peninsula</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ветрин</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Vetrin</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>184209, г. Апатиты, ул. Ферсмана, 14</p><p>121357, г. Москва, ул. Вересаева, 15</p></bio><bio xml:lang="en"><p>14 Fersmana st., Apatity 184209</p><p>15 Veresaeva st., Moscow 121357</p></bio><email xlink:type="simple">vetrin.val@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Скублов</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Skublov</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, г. Санкт-Петербург, наб. Макарова, 2</p><p>199106, г. Санкт-Петербург, В.О., 21-я линия, 2</p></bio><bio xml:lang="en"><p>2 Makarova emb., St. Petersburg 199034</p><p>2 21 line st., V.o., St. Petersburg 199106</p></bio><email xlink:type="simple">skublov@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Геологический институт Кольского научного центра РАН; Институт минералогии, геохимии, кристаллохимии редких элементов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Geological Institute, Kola Science Centre RAS; Institute of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт геологии и геохронологии докембрия РАН; Санкт-Петербургский горный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Precambrian Geology and Geochronology, RAS; Saint Petersburg Mining University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>04</day><month>11</month><year>2023</year></pub-date><volume>23</volume><issue>5</issue><fpage>868</fpage><lpage>886</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ветрин В.Р., Скублов С.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ветрин В.Р., Скублов С.Г.</copyright-holder><copyright-holder xml:lang="en">Vetrin V.R., Skublov S.G.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.lithosphere.ru/jour/article/view/1956">https://www.lithosphere.ru/jour/article/view/1956</self-uri><abstract><p>Объект исследования. Циркон из гранитоидов А- и I-типов неоархейской Кольской щелочной провинции Балтийского (Фенноскандинавского) щита. Цель. Определение редкоэлементного состава циркона для характеристики условий его образования в разных типах гранитоидов. Использование этих данных совместно с имеющимися результатами U-Pb датирования и Lu-Hf изотопного состава изученных кристаллов циркона в целях оценки количества мантийного и корового вещества в составе протолитов и влияния условий кристаллизации на редкоэлементный состав циркона. Материалы и методы. Изучены 50 кристаллов циркона из 5 образцов главных разновидностей гранитоидов провинции. Концентрации редких элементов определены на ионном микрозонде Cameca IMS-4f (ЯФ ФТИАН, г. Ярославль). Точки для анализов выбирались при помощи оптических и катодолюминесцентных снимков. Размер кратера не превышал 20 мкм, относительная ошибка измерений для преобладающей части элементов установлена в 10–15%, порог обнаружения элементов – 10 мг/т. Результаты. Установлены два главных типа циркона неоархейского возраста – циркон-1 и циркон-2, образованных соответственно на магматической и автометасоматической стадиях кристаллизации, циркон-4 во включениях в цирконе-1 и палеопротерозойский циркон-3 метаморфического генезиса. Средний изотопный состав Hf в цирконе-1 и цирконе-2 различных массивов изменяется незначительно, количество мантийного компонента (Xm) – в пределах от 23 до 30%, что может свидетельствовать об относительно постоянном и существенно коровом составе их протолитов. Выводы. Изменение редкоэлементного состава неоархейских цирконов контролировалось главным образом составом протолитов и окислительно-восстановительными условиями кристаллизации. В восстановительных условиях наибольшую химическую активность приобретали легкие (La–Nd) лантаноиды, для которых установлена прямая зависимость от величины Ce/Ce*. Для тяжелых лантаноидов с близкими размерами ионов относительно Zr+4 кристаллохимические факторы имели более важное значение и определяли уменьшение зависимости концентраций тяжелых лантаноидов в цирконе от Ce/Ce*.</p></abstract><trans-abstract xml:lang="en"><p>Research subject. Zircon from granitoids of the A- and I-types of the Neorchean Kola alkaline province of the Baltic (Fennoscandian) shield. Aim. To determine the trace element composition of zircon in order to characterize the conditions of its formation in different types of granitoids. To use these data, along with the available results of U-Pb dating and Lu-Hf isotope composition of the studied zircon crystals, to assess the amount of mantle and core matter in the protolith composition and the effect of crystallization conditions on the rare element composition of zircon. Materials and Methods. 50 zircon crystals from 5 samples of the main types of granitoids of the province were studied. Concentrations of trace elements were determined using a Cameca IMS-4f ion microprobe (NF FTIAN, Yaroslavl). Points for analysis were selected using optical and cathodoluminescent images. The size of the crater did not exceed 20 µm, the relative measurement error for the predominant part of the elements was set at 10–15%, the threshold for detecting elements was 10 ppb. Results. There are two main types of zircon of Neoarchean age – zircon-1 and zircon-2, formed, respectively, at the magmatic and autometasomatic stages of crystallization, zircon-4 in inclusions in zircon-1, and Paleoproterozoic zircon-3 of metamorphic genesis. The average isotopic composition of Hf in zircon-1 and zircon-2 of different arrays varies slightly, with the amount of mantle component (Xm) ranging from 23 to 30%, which may indicate a relatively constant and significantly core composition of their protoliths. Conclusions. The change in the trace element composition of Neoarchean zircons was controlled mainly by the composition of protoliths and redox crystallization conditions. Under reducing conditions, the greatest chemical activity was acquired by light (La-Nd) lanthanides, for which a direct dependence on the Ce/Ce* value was established. For heavy lanthanides with similar ion sizes relative to Zr+4, crystallochemical factors were more important and a decrease in the dependence of heavy lanthanide concentrations in zircon on Ce/ Ce* was determined.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>циркон</kwd><kwd>щелочные гранитоиды</kwd><kwd>редкие элементы</kwd><kwd>изотопный состав hf</kwd><kwd>Кольский полуостров</kwd></kwd-group><kwd-group xml:lang="en"><kwd>zircon</kwd><kwd>alkaline granitoids</kwd><kwd>trace elements</kwd><kwd>hf isotope composition</kwd><kwd>Kola Peninsula</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках тем НИР FMEZ-2022-0025 (ГИ КНЦ РАН) и FMUW-2022-0005 (ИГГД РАН). Авторы признательны М.А. Ветриной за помощь в подготовке рисунков, а также анонимным рецензентам рукописи за замечания и рекомендации.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of research and development: FMEZ-2022-0025 (GI KSC RAS) and FMUW-2022-0005 (IPGG RAS). The authors are grateful to M.A. Vetrina for assistance in the preparation of the pictures and anonymous reviewers of the manuscript for comments and recommendations.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Батиева И.Д. (1976) Петрология щелочных гранитоидов Кольского полуострова. Л.: Наука, 224 с.</mixed-citation><mixed-citation xml:lang="en">Balagansky V.V., Myskova T.A., Lvov P.A., Larionov A.N., Gorbunov I.A. (2021) Neoarchean A-type acid metavolcanics in the Keivy Terrane, northeastern Fennoscandian Shield: geochemistry, age, and origin. 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