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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-2025-16-4-0843</article-id><article-id custom-type="edn" pub-id-type="custom">QYKUHU</article-id><article-id custom-type="elpub" pub-id-type="custom">gtcrust-2080</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>ИСТОЧНИКИ ОБЛОМОЧНОГО МАТЕРИАЛА КАМЕННОУГОЛЬНЫХ ТЕРРИГЕННЫХ ОТЛОЖЕНИЙ ЦЕНТРАЛЬНОЙ ЧАСТИ ВОЛГО-УРАЛЬСКОЙ НЕФТЕГАЗОНОСНОЙ ПРОВИНЦИИ (РЕСПУБЛИКА ТАТАРСТАН) ПО РЕЗУЛЬТАТАМ МИНЕРАЛОГО-ПЕТРОГРАФИЧЕСКОГО ИЗУЧЕНИЯ ПЕСЧАНИКОВ И U-PB (LA-ICP-MS) ИЗОТОПНОГО ИЗУЧЕНИЯ ОБЛОМОЧНЫХ ЦИРКОНОВ</article-title><trans-title-group xml:lang="en"><trans-title>PROVENANCE OF CARBONIFEROUS CLASTIC DEPOSITS IN THE CENTRAL PART VOLGA-URAL PETROLEUM PROVINCE (REPUBLIC OF TATARSTAN) REVEALED BY PETROGRAPHY AND U-PB (LA-ICP-MS) DETRITAL ZIRCON ISOTOPIC DATA</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1785-442X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миннебаев</surname><given-names>К. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Minnebaev</surname><given-names>K. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>420008, Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>18 Kremlyovskaya St, Kazan 420008</p></bio><email xlink:type="simple">krminnebaev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4263-5031</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Куликова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulikova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>420008, Казань, ул. Кремлевская, 18</p><p>630090, Новосибирск, пр­т Академика Коптюга, 3 </p></bio><bio xml:lang="en"><p>18 Kremlyovskaya St, Kazan 420008 </p><p>3 Academician Koptyug Ave, Novosibirsk 630090 </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9654-6889</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котлер</surname><given-names>П. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotler</surname><given-names>P. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>420008, Казань, ул. Кремлевская, 18</p><p>630090, Новосибирск, пр-­т Академика Коптюга, 3 </p></bio><bio xml:lang="en"><p>18 Kremlyovskaya St, Kazan 420008 </p><p>3 Academician Koptyug Ave, Novosibirsk 630090 </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4269-0962</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нургалиев</surname><given-names>Д. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Nourgaliev</surname><given-names>D. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>420008, Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>18 Kremlyovskaya St, Kazan 420008 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-9005-0775</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саетгалеева</surname><given-names>Я. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Saetgaleeva</surname><given-names>Ya. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>420008, Казань, ул. Кремлевская, 18</p></bio><bio xml:lang="en"><p>18 Kremlyovskaya St, Kazan 420008 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский (Приволжский) федеральный университет; Институт геологии и минералогии им. В.С. Соболева СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan Federal University; Sobolev Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>16</day><month>08</month><year>2025</year></pub-date><volume>16</volume><issue>4</issue><fpage>843</fpage><lpage>843</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Миннебаев К.Р., Куликова А.В., Котлер П.Д., Нургалиев Д.К., Саетгалеева Я.Я., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Миннебаев К.Р., Куликова А.В., Котлер П.Д., Нургалиев Д.К., Саетгалеева Я.Я.</copyright-holder><copyright-holder xml:lang="en">Minnebaev K.R., Kulikova A.V., Kotler P.D., Nourgaliev D.K., Saetgaleeva Y.Y.</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/2080">https://www.gt-crust.ru/jour/article/view/2080</self-uri><abstract><p>Представлены результаты изучения образцов песчаников ранне- и среднекаменноугольного возраста Волго-Уральской нефтегазоносной провинции, отобранных из керна скважин, пробуренных на территории Южно-Татарского свода и на северо-восточном борту Мелекесской впадины. На основе результатов минералого-петрографических и изотопно-геохронологических исследований установлено, что для песчаников из отложений нижнего и среднего отдела каменноугольной системы были разные доминирующие источники сноса. Для песчаников нижнего отдела характерен мономиктовый состав, состоящий из обломков кварца с высокой степенью окатанности. Минеральный состав тяжелой фракции представлен устойчивыми к транспортировке минералами (рутил, анатаз, циркон). По результатам U-Pb изотопно-геохронологического изучения зерен обломочных цирконов определен протерозойский возраст основной популяции зерен, а в качестве их источника предполагаются Свеконорвежский и Свекофенский орогены. Для песчаников среднего отдела характерен полимиктовый состав. Установлено наличие обломков кварца, полевого шпата, горных пород со средней степенью окатанности, и определен разнообразный минеральный состав тяжелой фракции (рутил, анатаз, циркон, шпинель, гранат) с наличием неустойчивых к транспортировке минералов (биотит, амфибол, эпидот). Полученные результаты U-Pb геохронологических исследований позволили установить доминирующую палеозойскую популяцию цирконов, а также предположить, что их источником являются породы Уральского орогена.</p></abstract><trans-abstract xml:lang="en"><p>This study presents the results of an integrated petrographic and U-Pb geochronological investigation of Lower to Middle Carboniferous sandstones from the Volga-Ural petroleum province. The samples were obtained from drill cores collected in the South Tatar Arch and the northeastern flank of the Melekess Depression. The combined data reveal distinct provenance signatures for the Lower and Middle Carboniferous units. The Lower Carboniferous sandstones are characterized by a monomictic composition, dominated by well-rounded quartz grains. The heavy mineral assemblage consists primarily of ultra-stable minerals such as rutile, anatase, and zircon. U-Pb (LA-ICP-MS) dating of detrital zircons indicates a dominant Proterozoic age population, suggesting source areas associated with the Sveconorwegian and Svecofenian orogenic belts. In contrast, the Middle Carboniferous sandstones display a polymictic composition, comprising quartz, feldspar, and lithic fragments with moderate grain rounding. The heavy mineral suite is more diverse and includes both stable (rutile, anatase, zircon, spinel, garnet) and less stable minerals (biotite, amphibole, epidote). U-Pb geochronology reveals a dominant Paleozoic detrital zircon population, pointing to the Uralian orogen as the primary sediment source.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Волго-Уральская нефтегазоносная провинция</kwd><kwd>Южно-Татарский свод</kwd><kwd>Мелекесская впадина</kwd><kwd>каменноугольная система</kwd><kwd>U-Pb датирование</kwd><kwd>детритовый циркон</kwd><kwd>минералы тяжелой фракции</kwd><kwd>источники сноса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Volga-Urals petroleum province</kwd><kwd>South Tatar arch</kwd><kwd>Melekess depression</kwd><kwd>carboniferous system</kwd><kwd>U-Pb dating</kwd><kwd>detrital zircon</kwd><kwd>heavy fraction minerals</kwd><kwd>provenance areas</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена за счет гранта Республики Татарстан, предоставленного молодым ученым и молодежным научным коллективам на проведение научных исследований в наиболее перспективных и значимых для развития Республики Татарстан областях.</funding-statement><funding-statement xml:lang="en">The work was carried out with the support of a grant from the Republic of Tatarstan, provided to young scientists and youth research teams to conduct scientific research in the most promising and significant areas for the development of the Republic of Tatarstan.</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">Алиев М.М., Яриков Г.М., Хачатрян Р.О., Виссариона А.Я., Кузнецов Ю.И., Семенова Е.Г., Съестнова Л.П., Травина Л.М., Шельнова А.К. 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