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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">gtcrust</journal-id><journal-title-group><journal-title xml:lang="ru">Геодинамика и тектонофизика</journal-title><trans-title-group xml:lang="en"><trans-title>Geodynamics &amp; Tectonophysics</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2078-502X</issn><publisher><publisher-name>Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.5800/GT-2022-13-1-0574</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-1427</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>ПАЛЕОГЕОДИНАМИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PALEOGEODYNAMICS</subject></subj-group></article-categories><title-group><article-title>ПЕРВЫЕ SM-ND ИЗОТОПНЫЕ ДАННЫЕ ДЛЯ МЕТАМОРФИЧЕСКИХ ПОРОД ГУДЖАЛЬСКОГО БЛОКА ВОСТОЧНОЙ ЧАСТИ БУРЕИНСКОГО КОНТИНЕНТАЛЬНОГО МАССИВА</article-title><trans-title-group xml:lang="en"><trans-title>THE FIRST SM-ND ISOTOPIC DATA FOR METAMORPHIC ROCKS OF THE GUDJAL BLOCK IN THE EASTERN PART OF BUREYA CONTINENTAL MASSIF</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>Овчинников</surname><given-names>Р. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Ovchinnikov</surname><given-names>R. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>675000, Благовещенск, пер. Релочный, 1</p></bio><bio xml:lang="en"><p>Roman O. Ovchinnikov</p><p>1 Relochniy ln, Blagoveshchensk 675000</p></bio><email xlink:type="simple">ovchinnikov@ignm.ru</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>Сорокин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>675000, Благовещенск, пер. Релочный, 1</p></bio><bio xml:lang="en"><p>1 Relochniy ln, Blagoveshchensk 675000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковач</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovach</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, Санкт-Петербург, наб. Макарова, 2</p></bio><bio xml:lang="en"><p>2 Makarov Emb, Saint Petersburg, 199034</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Xu</surname><given-names>W. L.</given-names></name><name name-style="western" xml:lang="en"><surname>Xu</surname><given-names>W. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>130061, Чанчунь, ул. Цзяньшэ, 2199</p></bio><bio xml:lang="en"><p>2199 Jianshe St, Changchun 130061</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт геологии и природопользования ДВО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Geology and Nature Management, Far Eastern Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт геологии и геохронологии докембрия РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Precambrian geology and geochronology, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Колледж наук о Земле Цзилиньского университета</institution><country>Китай</country></aff><aff xml:lang="en"><institution>College of Earth Sciences of Jilin University</institution><country>China</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>22</day><month>03</month><year>2022</year></pub-date><volume>13</volume><issue>1</issue><fpage>574</fpage><lpage>574</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Овчинников Р.О., Сорокин А.А., Ковач В.П., Xu W.L., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Овчинников Р.О., Сорокин А.А., Ковач В.П., Xu W.L.</copyright-holder><copyright-holder xml:lang="en">Ovchinnikov R.O., Sorokin A.A., Kovach V.P., Xu W.L.</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.gt-crust.ru/jour/article/view/1427">https://www.gt-crust.ru/jour/article/view/1427</self-uri><abstract><p>Впервые проведены Sm-Nd изотопно-геохимические исследования метаморфических пород Гуджальского блока, рассматриваемого в качестве «выступа» фундамента Буреинского континентального массива. Установлено, что биотитовые и гранат-амфиболовые ортосланцы гуджальской свиты характеризуются глубоко отрицательными значениями εNd(0) =–15.7…–17.2 и палеопротерозойскими величинами Nd модельного возраста tNd(DM)=2.4–2.1 млрд лет. Близкими изотопными параметрами характеризуются и гнейсовидные биотитовые гранодиориты: εNd(0)=–18.7, tNd(DM)=1.8 млрд лет. Для исследованных ортопород Гуджальского блока в качестве возможного субстрата для расплавов могут рассматриваться неопротерозойские ортогнейсы и ортоамфиболиты туловчихинской свиты, неопротерозойские гнейсограниты нятыгранского комплекса, обладающие палеопротерозойским модельным возрастом.</p></abstract><trans-abstract xml:lang="en"><p>It is the first time that there have been Sm-Nd isotopic geochemical studies conducted into the metamorphic rocks of the Gudjal block considered as a basement protrusion of the Bureya continental massif. It has been found that biotite and garnet-amphibole schists of the Gudjal formation are characterized by strongly negative εNd(0)=–15.7…–17.2 values and Paleoproterozoic values of Nd model age of tNd(DM)=2.4–2.1 Ga. Similar isotopic parameters are also typical of gneissic biotite granodiorites: εNd(0)=–18.7, tNd(DM)=1.8 Ga. Out of orthorocks of the Gudjal block studied, the Neoproterozoic orthogneisses and orthoamphibolites of the Tulovchikha formation and the Neoproterozoic gneiss-granites of the Nyatyngran complex of the Paleoproterozoic model age may be considered as a probable substrate for melts.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Буреинский континентальный массив</kwd><kwd>Гуджальский блок</kwd><kwd>метаморфические породы</kwd><kwd>протолит</kwd><kwd>Sm-Nd метод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Bureya continental massif</kwd><kwd>Gudjal block</kwd><kwd>metamorphic rocks</kwd><kwd>protolite</kwd><kwd>Sm-Nd method</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены при финансовой поддержке РФФИ (проект № 21-55-53002-ГФЕН_а).</funding-statement><funding-statement xml:lang="en">The studies were done under financial support RFBR (project 21-55-53002-GFEN_a).</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">Goldstein S.J., Jacobsen S.B., 1988. 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