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<article article-type="conference-paper" 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">10.24930/1681-9004-2025-25-4-772-793</article-id><article-id custom-type="edn" pub-id-type="custom">UQXKXC</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-2332</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>Специальный выпуск журнала “Литосфера”</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Special Issue of the Lithosphere Journal based on the materials reported at the 14th Ural Lithological Conference and the 5th All-Russian School of Lithology “Heterogeneity in Sedimentary Systems”</subject></subj-group></article-categories><title-group><article-title>Гипостратотип усть-сылвицкой свиты верхнего венда в Кваркушско- Каменногорском антиклинории (Средний Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Hypostratotype section of the Vendian Ust’-Sylvytsa Formation in the Kvarkush-Kamennogorsk Anticlinorium (Central 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>Панькова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Violetta A. Pankova</p><p>7/1 Pyzhevsky lane, Moscow 119017</p></bio><email xlink:type="simple">pankova@ginras.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>Колесников</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolesnikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Anton V. Kolesnikov</p><p>7/1 Pyzhevsky lane, Moscow 119017</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>Паньков</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Vladimir N. Pankov</p><p>7/1 Pyzhevsky lane, Moscow 119017</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>Высоцкий</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Vysotsky</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Egor N. Vysotsky</p><p>7/1 Pyzhevsky lane, Moscow 119017</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>Латышева</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Latysheva</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Irina V. Latysheva</p><p>7/1 Pyzhevsky lane, Moscow 119017</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>Шацилло</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shatsillo</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p><p>123995, г. Москва, ул. Б. Грузинская 10, стр. 1</p></bio><bio xml:lang="en"><p>Andrey V. Shatsillo</p><p>7/1 Pyzhevsky lane, Moscow 119017</p><p>10/1 B. Gruzinskaya st., Moscow 123995</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>Кузнецов</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p></bio><bio xml:lang="en"><p>Nikolay B. Kuznetsov</p><p>7/1 Pyzhevsky lane, Moscow 119017</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>Романюк</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Romanyuk</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119017, г. Москва, Пыжевский пер. 7, стр. 1</p><p>123995, г. Москва, ул. Б. Грузинская 10, стр. 1</p></bio><bio xml:lang="en"><p>10/1 B. Gruzinskaya st., Moscow 123995</p><p>10/1 B. Gruzinskaya st., Moscow 123995</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Геологический институт РАН<country>Россия</country></aff><aff xml:lang="en">Geological Institute, RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Геологический институт РАН; Институт физики Земли им. О.Ю. Шмидта РАН<country>Россия</country></aff><aff xml:lang="en">Geological Institute, RAS; O.Yu. Shmidt Institute of Physics of the Earth, RAS<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Геологический институт РАН; Институт физики Земли им. О.Ю. Шмидта РАН<country>Россия</country></aff><aff xml:lang="en">O.Yu. Shmidt Institute of Physics of the Earth, RAS; O.Yu. Shmidt Institute of Physics of the Earth, RAS<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>09</month><year>2025</year></pub-date><volume>25</volume><issue>4</issue><issue-title>Специальный выпуск</issue-title><fpage>772</fpage><lpage>793</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Панькова В.А., Колесников А.В., Паньков В.Н., Высоцкий Е.Н., Латышева И.В., Шацилло А.В., Кузнецов Н.Б., Романюк Т.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Панькова В.А., Колесников А.В., Паньков В.Н., Высоцкий Е.Н., Латышева И.В., Шацилло А.В., Кузнецов Н.Б., Романюк Т.В.</copyright-holder><copyright-holder xml:lang="en">Pankova V.A., Kolesnikov A.V., Pankov V.N., Vysotsky E.N., Latysheva I.V., Shatsillo A.V., Kuznetsov N.B., Romanyuk T.V.</copyright-holder><license 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/2332">https://www.lithosphere.ru/jour/article/view/2332</self-uri><abstract><sec><title>Объект исследования</title><p>Объект исследования. Усть-сылвицкая свита сылвицкой серии верхнего венда в Кваркушско-Каменногорском антиклинории (Средний Урал) в разрезах по берегам Широковского водохранилища и у г. Чусового в Пермском крае.</p></sec><sec><title>Результаты</title><p>Результаты. Установлено трехчленное строение разреза свиты, которое включает в себя нижнюю, среднюю и верхнюю подсвиты. Для нижней подсвиты характерны буроватые, серые, до серо-зеленых, грубозернистые песчаники с крупной мульдообразной многоэтажной разнонаправленной косой слоистостью, часто подчеркнутой скоплениями плоских аргиллитовых галек шоколадно-коричневого цвета. Общая мощность нижней подсвиты составляет 540 м. Средняя подсвита (мощностью до 30 м) представлена преимущественно массивными песчаниками без видимой слоистости и аргиллитовых галек. В ней выявлены маркирующие уровни (горизонты): слой белесых апопепловых глин, для циркона из которых ранее получен U–Pb возраст 563 ± 3.5 млн лет, и слой песчаников с относительно крупными обломками калишпатов. Завершает разрез верхняя подсвита (мощность до 80 м), для которой характерно частое переслаивание аргиллитов, алевролитов и песчаников. В ней обнаружены арумбериеморфные микробиально-индуцированные осадочные текстуры (Arumberia), а также апопепловые глины с аномальной, от белесой до вишне-бурой, окраской, которые могут послужить дополнительным признаком при литостратиграфической корреляции отложений.</p></sec><sec><title>Выводы</title><p>Выводы. Разрез усть-сылвицкой свиты в районе Широковского водохранилища и у г. Чусового представлен наиболее полно в сравнении со стратотипом по р. Чусовой у устья р. Сылвицы и предложен нами в качестве составного гипостратотипа.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Research subject</title><p>Research subject. The sedimentary sequences of the Ust’-Sylvitsa Formation of the Upper Vendian Sylvitsa Group were studied in Kvarkush-Kamennogorsk Anticlinorium in the sections on Lake Shyrokovsky coastline and Chusovoi City area in the Perm Krai region of Russia.</p></sec><sec><title>Results</title><p>Results. A three-membered structure of the formation was established, which includes the Lower, Middle, and Upper members. The Lower Member is characterised by sandstones that are thick, brownish, greyish to green-greyish, coarse-grained, and have multi directional herringbone cross-stratiﬁcation that is often marked by clusters of chocolate-brown ﬂat clay pebbles. The total thickness of the Lower Member is 540 m. The Middle Member (up to 30-m-thick) is represented mainly by massive sandstones without visible stratiﬁcation and clay pebbles. It reveals marking levels (horizons): a layer of whitish apoclays, from which the U-Pb age of zircon 563 ± 3.5 Ma was previously obtained; and a layer of sandstone with relatively large clasts of feldspar. The section is completed by the Upper Member (up to 80-m-thick), which is characterised by mottled alternation of mudstones, siltstones and sandstones. It also revealed arumberiamorph microbially induced sedimentary structures (Arumberia), as well as levels with ash beds with anomalous whitish to cherry-brown colouring, which may serve as an additional feature in lithostratigraphic correlation of the sequences.</p></sec><sec><title>Conclusions</title><p>Conclusions. The Ust’-Sylvitsa Formation section in the Lake Shyrokovsky and Chusovoi City area is represented most completely in comparison with the stratotype section on the Chusovaya River near the mouth of the Sylvitsa River, and we propose it as a composite hypostratotype section.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>венд</kwd><kwd>усть-сылвицкая свита</kwd><kwd>сылвицкая серия</kwd><kwd>Кваркушско-Каменногорский антиклинорий</kwd><kwd>Средний Урал</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Vendian</kwd><kwd>Ust’-Sylvitsa Formation</kwd><kwd>Sylvitsa Group</kwd><kwd>Kvarkush-Kamennogorsk Anticlinorium</kwd><kwd>Central Urals</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Полевые исследования, описание разрезов и подготовка публикации проведены при финансовой поддержке гранта РНФ № 24-77-10030. Литологические и стратиграфические исследования выполнены в соответствии с планами научно-исследовательских работ тем государственных заданий Геологического института РАН и Института физики Земли им. О.Ю. Шмидта РАН.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>Field observations, study of sections and preparation of the manuscript were funded by the Russian Science Foundation, grant No. 24-77-10030. Lithological and stratigraphic studies were carried out in accordance with state assignments of the Geological Institute RAS and Schmidt Institute of Physics of the Earth 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">Аблизин Б.Д., Клюжина М.Д., Курбацкая Ф.А., Курбацкий А.М. (1982) Верхний рифей и венд западного склона Среднего Урала. 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