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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">geolmsu</journal-id><journal-title-group><journal-title xml:lang="ru">ВЕСТНИК МОСКОВСКОГО УНИВЕРСИТЕТА. СЕРИЯ 4. ГЕОЛОГИЯ</journal-title><trans-title-group xml:lang="en"><trans-title>Moscow University Bulletin. Series 4. Geology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0579-9406</issn><publisher><publisher-name>Издательский Дом МГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33623/0579-9406-2022-6-71-82</article-id><article-id custom-type="elpub" pub-id-type="custom">geolmsu-544</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>Условия формирования кремнистых пород нижнего-среднего кембрия юго-востока Сибирской платформы</article-title><trans-title-group xml:lang="en"><trans-title>Conditions for the formation of siliceous rocks of the Lower-Middle Cambrian in the southeast of the Siberian Platform</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3204-4393</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меренкова</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Merenkova</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Софья Ивановна Меренкова </p><p>Москва</p></bio><bio xml:lang="en"><p> Sofia I. Merenkova </p><p>Moscow</p></bio><email xlink:type="simple">koshelevasof@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8274-3622</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калмыков</surname><given-names>Г. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalmykov</surname><given-names>G. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Георгий Александрович Калмыков </p><p>Москва</p></bio><bio xml:lang="en"><p> Georgiy A. Kalmykov </p><p>Moscow</p></bio><email xlink:type="simple">gera64@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8296-7191</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Габдуллин</surname><given-names>Р. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Gabdullin</surname><given-names>R. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руслан Рустемович Габдуллин </p><p>Москва</p></bio><bio xml:lang="en"><p> Ruslan R. Gabdullin </p><p> Moscow </p></bio><email xlink:type="simple">Gabdullin@fgp.msu.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Евгения Владимировна Карпова </p><p>Москва</p></bio><bio xml:lang="en"><p> Evgenia V. Karpova </p><p> Moscow </p></bio><email xlink:type="simple">karpoff_2002@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7148-7344</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пузик</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Puzik</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Алексей Юрьевич Пузик </p><p>Пермь</p></bio><bio xml:lang="en"><p> Aleksey Yu. Puzik </p><p> Perm </p></bio><email xlink:type="simple">alex.puzik@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бадьянова</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Badianova</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Владиславовна Бадьянова </p><p>Пермь</p></bio><bio xml:lang="en"><p> Irina V. Badianova </p><p> Perm </p></bio><email xlink:type="simple">kataev7@psu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3416-8296</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волкова</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkova</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Маргарита Александровна Волкова </p><p>Пермь</p></bio><bio xml:lang="en"><p> Margarita A. Volkova </p><p> Perm </p></bio><email xlink:type="simple">margo@psu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казымов</surname><given-names>К. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazymov</surname><given-names>K. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Павлович Казымов </p><p>Пермь</p></bio><bio xml:lang="en"><p> Konstantin P. Kazymov </p><p> Perm </p></bio><email xlink:type="simple">kazymov@psu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт океанологии имени П.П. Ширшова РАН; Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Shirshov Institute of Oceanology of the RAS;&#13;
Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Пермский государственный национальный исследовательский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Perm State National Research University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>06</day><month>02</month><year>2023</year></pub-date><volume>0</volume><issue>6</issue><fpage>71</fpage><lpage>82</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Меренкова С.И., Калмыков Г.А., Габдуллин Р.Р., Карпова Е.В., Пузик А.Ю., Бадьянова И.В., Волкова М.А., Казымов К.П., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Меренкова С.И., Калмыков Г.А., Габдуллин Р.Р., Карпова Е.В., Пузик А.Ю., Бадьянова И.В., Волкова М.А., Казымов К.П.</copyright-holder><copyright-holder xml:lang="en">Merenkova S.I., Kalmykov G.A., Gabdullin R.R., Karpova E.V., Puzik A.Y., Badianova I.V., Volkova M.A., Kazymov K.P.</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://vestnik.geol.msu.ru/jour/article/view/544">https://vestnik.geol.msu.ru/jour/article/view/544</self-uri><abstract><p>На основании изучения микроструктурных и геохимических особенностей силицитов иниканской свиты (Є1–2in) из береговых обнажений р. Юдома установлено, что ключевая роль в их формировании принадлежит, по-видимому, кремнистым организмам — радиоляриям и губкам. Значения отношения Ge/Si указывают на отсутствие прямого вклада гидротерм в образование силицитов в этой части палеобассейна. Изучаемые халцедон-кварцевые породы сформировались из первично биогенного кремнезема, подвергшегося диагенетическому перераспределению и постдиагенетическим процессам.</p></abstract><trans-abstract xml:lang="en"><p> Based on the study of microstructural and geochemical features of bedded cherts of the Inikan Formation (Є1–2in) from coastal outcrops of the river Yudoma found that the key role in their formation apparently belongs to siliceous organisms — radiolarians and sponges. The Ge/Si ratio indicates that there is no direct contribution of fluids to the formation of cherts in this part of the paleobasin. The studied chalcedony-quartz rocks were formed from primary biogenic silica subjected to diagenetic redistribution and post-diagenetic processes. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>силициты</kwd><kwd>кремнезем</kwd><kwd>кембрий</kwd><kwd>геохимия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bedded cherts</kwd><kwd>silicа</kwd><kwd>cambrian</kwd><kwd>geochemistry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках темы государственного задания FMWE-2021-0006 и Минобрнауки РФ (проект № 2019-0858).</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">Бахтуров С.Ф. Битуминозные карбонатно-сланцевые формации Восточной Сибири. Новосибирск: Наука, 1985.</mixed-citation><mixed-citation xml:lang="en">Бахтуров С.Ф. Битуминозные карбонатно-сланцевые формации Восточной Сибири. 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