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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">10.24930/1681-9004-2025-25-4-876-889</article-id><article-id custom-type="edn" pub-id-type="custom">TTWVLV</article-id><article-id custom-type="elpub" pub-id-type="custom">litosphere-2337</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>Классификация турбидитовых каналов клиноформного комплекса нижнего мела Западной Сибири</article-title><trans-title-group xml:lang="en"><trans-title>Classification of turbidite channels of the Lower Cretaceous Clinoform complex in West Siberia</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>Храмцова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khramtsova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>625003, г. Тюмень, ул. Перекопская, 19</p></bio><bio xml:lang="en"><p>Alena V. Khramtsova</p><p>19 Perekopskaya st., Tyumen 625003</p></bio><email xlink:type="simple">avkhramtsova@rosneft.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>Зверев</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zverev</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>630090, г. Новосибирск, ул. Пирогова, 2</p></bio><bio xml:lang="en"><p>Konstantin V. Zverev</p><p>2 Pirogov st., Novosibirsk 630090</p></bio><email xlink:type="simple">k.zverev@ncu.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>Мельников</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnikov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>625003, г. Тюмень, ул. Перекопская, 19</p></bio><bio xml:lang="en"><p>Aleksandr V. Melnikov</p><p>19 Perekopskaya st., Tyumen 625003</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО “Тюменский нефтяной научный центр”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumen Petroleum Research Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-образовательный центр “Газпромнефть-НГУ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific and Educational Center “Gazpromneft-NSU”</institution><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>876</fpage><lpage>889</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Храмцова А.В., Зверев К.В., Мельников А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Храмцова А.В., Зверев К.В., Мельников А.В.</copyright-holder><copyright-holder xml:lang="en">Khramtsova A.V., Zverev K.V., Melnikov A.V.</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/2337">https://www.lithosphere.ru/jour/article/view/2337</self-uri><abstract><sec><title>Объект исследований</title><p>Объект исследований. Турбидитовые каналы ачимовской толщи (рязанско-готеривского возраста), залегающей в основании нижнемелового клиноформного комплекса Западной Сибири.</p></sec><sec><title>Цель</title><p>Цель. Выделить разные типы распределительных глубоководных турбидитовых каналов, установить их влияние на морфологию подводных конусов выноса в целях увеличения точности прогноза пород-коллекторов.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для выделения фаций и типизации турбидитовых каналов использовался комплексный анализ данных по керну, геофизическим исследованиям скважин и результатов 3D-сейсморазведки по 10 площадям Западно-Сибирского осадочного мегабассейна. Фациальная интерпретация и типизация турбидитовых каналов выполнена с учетом известных методов исследований, включающих литофациальный, ихнологический, сейсмоморфологический, электрометрический анализы.</p></sec><sec><title>Результаты</title><p>Результаты. Представлены диагностические признаки, проведена типизация турбидитовых каналов по их морфологии и литологическому заполнению, выдвинуты предположения об их влиянии на распределение песчаных отложений в ачимовской толще.</p></sec><sec><title>Выводы</title><p>Выводы. В разрезе ачимовской толщи Западной Сибири выделены четыре морфологических типа подводных турбидитовых каналов: 1) эрозионный; 2) меандрирующий с аккреционным комплексом без агградации; 3) агградирующий; 4) гибридный (смешанный). Установлена трансформация турбидитовых каналов во времени по площади и разрезу. Выявлено, что большинство глубоководных меандрирующих турбидитовых каналов в результате авульсии мигрируют влево за счет влияния силы Кориолиса и контурных течений и формируют подводные конусы выноса с левосторонней асимметрией. Спрямленные турбидитовые каналы со слабовыраженными прирусловыми валами формируют радиальные конусы выноса с большим содержанием песчаников.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Research subject</title><p>Research subject. Turbidite channels of the Achimov formation (Ryazanian-Hauterivian) which occur at the base of the Lower Cretaceous complex of West Siberia. Aim. Identify various types of distribution and feeding turbidite channels, eﬀect on the morphology of underwater fans in order to predict reservoir rocks.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. To interpret facies and classify channels within the Achimov Formation, a complex of core, well log and 3D seismic data on ten West Siberian sites was used. The interpretation and classiﬁcation eﬀort included the lithofacies, ichnological, electrofacies, sequence-stratigraphic and 3D seismic geomorphological analyses.</p></sec><sec><title>Results</title><p>Results. The diagnostic features of turbidite channels, their classiﬁcation based on channel shape and ﬁlling, as well as the eﬀect on the morphology of deep-sea fans and the distribution of sand deposits are presented.</p></sec><sec><title>Conclusions</title><p>Conclusions. Four morphological types of underwater channels have been identiﬁed in the Achimov formation of Western Siberia: Erosive; 2) Meandering with an accretion complex without aggradation; 3) Aggrading; 4) Hybrid (mixed). The lateral and time-dependent transformation of the channels has been established. It was noticed that, due to avulsion, most of the deep-sea meandering channels tend to migrate to the left, towards the underwater slope by the eﬀect of the Coriolis force and contour currents, and form fans with left-sided asymmetry. The straightened channels with poor levees form radial fans with high content of sandstones within the cross-section.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>турбидитовый канал</kwd><kwd>агградация</kwd><kwd>авульсия</kwd><kwd>латерально-аккреционный комплекс</kwd><kwd>глубоководные конусы выноса</kwd><kwd>ачимовская толща</kwd><kwd>Западная Сибирь</kwd></kwd-group><kwd-group xml:lang="en"><kwd>turbidite channel</kwd><kwd>aggradation</kwd><kwd>avulsion</kwd><kwd>lateral accretion complex</kwd><kwd>submarine fans</kwd><kwd>Achimov formation</kwd><kwd>Western Siberia</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы благодарны рецензентам за ценные замечания и рекомендации, которые позволили существенно улучшить статью.</funding-statement><funding-statement xml:lang="en">The authors are grateful to the reviewers for their valuable comments and recommendations, which made it possible to significantly improve the article.</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">Алексеев В.П. 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