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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">10.24930/1681-9004-2025-25-6-1350-1364</article-id><article-id custom-type="edn" pub-id-type="custom">OYUGZC</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-2417</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>Геохимические особенности и условия формирования позднедокембрийских вулканитов южной части Ляпинской тектонической зоны (Северный Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Geochemical features and formation conditions of Late Precambrian volcanics in the southern part of the Lyapin tectonic zone (Northern Urals)</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>Петров</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>620110; ул. Академика Вонсовского, 15; Екатеринбург</p></bio><bio xml:lang="en"><p>Georg A. Petrov</p><p>620110; 15 Academician Vonsovsky st.; Ekaterinburg</p></bio><email xlink:type="simple">Georg_Petrov@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт геологии и геохимии им. академика А.Н. Заварицкого УрО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.N. Zavaritsky Institute of Geology and Geochemistry, UB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2025</year></pub-date><volume>25</volume><issue>6</issue><fpage>1350</fpage><lpage>1364</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петров Г.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Петров Г.А.</copyright-holder><copyright-holder xml:lang="en">Petrov G.A.</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/2417">https://www.lithosphere.ru/jour/article/view/2417</self-uri><abstract><sec><title>   Объект исследования</title><p>   Объект исследования. Вулканогенные породы, относимые к саблегорской свите верхнего рифея – венда в южной части Ляпинской тектонической зоны (Северный Урал).</p></sec><sec><title>   Цель</title><p>   Цель. Реконструкция этапов и палеообстановок формирования вулканических пород.</p></sec><sec><title>   Методы и материалы</title><p>   Методы и материалы. Выполнены геохимические исследования и интерпретация геохимических параметров с привлечением геологических и изотопно-геохронологических данных.</p></sec><sec><title>   Результаты</title><p>   Результаты. Геохимические особенности вулканогенных пород, относимых к саблегорской свите, указывают на неоднородность их состава, что может указывать на присутствие нескольких групп пород, формировавшихся в разных условиях. Радиологические определения возраста пород имеют диапазон более 100 млн лет, от позднего рифея до позднего кембрия, что также не противоречит представлениям о нескольких импульсах магматической активности. Можно предположить пространственное совмещение в пределах Ляпинской тектонической зоны вулканогенных образований нескольких разновозрастных палеообстановок – докембрийской надсубдукционной и раннепалеозойской рифтогенной.</p></sec><sec><title>   Выводы</title><p>   Выводы. Сделано предположение, что вулканогенные породы, в настоящее время относимые к саблегорской свите RF3-V, формировались в тылу позднедокембрийской активной континентальной окраины и на ранней стадии континентального рифтогенеза в раннем палеозое.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>   Research subject</title><p>   Research subject. Volcanogenic rocks belonging to the Sablegorskaya formation of the Upper Riphean–Vendian in the southern part of the Lyapin tectonic zone (Northern Urals).</p></sec><sec><title>   Aim</title><p>   Aim. Reconstruction of the stages and paleo-environments of volcanic rock formation.</p></sec><sec><title>   Methods and materials</title><p>   Methods and materials. Geochemical studies and interpretation of geochemical parameters were performed using geological and isotope-geochronological data.</p></sec><sec><title>   Results</title><p>   Results. Geochemical features of volcanogenic rocks belonging to the Sablegorskaya formation indicate heterogeneity of their compositions, which may indicate the presence of several rock groups formed under different conditions. Radiological determinations of the age of rocks have a range of more than 100 million years, from the Ediacaran to the Late Cambrian (Furongian). This finding does not contradict the idea of the action of several pulses of magmatic activity. An assumption can be made about a spatial combination of volcanogenic formations of several paleoenvironments of different ages – Precambrian suprasubduction and Early Paleozoic rifting – within the Lyapin tectonic zone.</p></sec><sec><title>   Conclusions</title><p>   Conclusions. An assumption is made that the volcanogenic rocks currently attributed to the RF3-V Sablegorskaya formation were formed in the rear of the Late Precambrian active continental margin at an early stage of continental rifting in the Early Paleozoic.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>Северный Урал</kwd><kwd>Ляпинская тектоническая зона</kwd><kwd>вулканогенные образования</kwd><kwd>саблегорская свита</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Northern Urals</kwd><kwd>Lyapin tectonic zone</kwd><kwd>volcanogenic formations</kwd><kwd>Sablegorskaya formation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования проведены в соответствии с темой государственного задания ИГГ УрО РАН (№ госрегистрации 123011800013-6) с использованием оборудования ЦКП “Геоаналитик” ИГГ УрО РАН</funding-statement><funding-statement xml:lang="en">The studies are carried out as a part of the IGG UB RAS state assignment (state registration No. 123011800013-6) using the “Geoanalitik” shared research facilities of the IGG UB RAS</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">Андреичев В.Л. 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