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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">geores</journal-id><journal-title-group><journal-title xml:lang="ru">Георесурсы</journal-title><trans-title-group xml:lang="en"><trans-title>Georesources</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1608-5043</issn><issn pub-type="epub">1608-5078</issn><publisher><publisher-name>Georesursy LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18599/grs.2025.1.6</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-464</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>ГЕОЛОГИЯ, ПОИСК И РАЗВЕДКА МЕСТОРОЖДЕНИЙ ТВЕРДЫХ ПОЛЕЗНЫХ ИСКОПАЕМЫХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GEOLOGY, PROSPECTING AND EXPLORATION OF SOLID MINERAL DEPOSITS</subject></subj-group></article-categories><title-group><article-title>Геохимия и петрогенезис магматических пород Кутуевского Au-Cu-порфирового рудопроявления (Южный Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Geochemistry and Petrogenesis of Igneous Rocks of the Kutuevsky Au-Cu Porphyry Ore Occurrence (Southern 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>Знаменский</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Znamensky</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Евгеньевич Знаменский, доктор геол.-минерал. наук, главный научный сотрудник</p><p>450077; ул. К. Маркса, д. 16/2; Уфа</p></bio><bio xml:lang="en"><p>Sergey E. Znamensky, Dr. Sci. (Geology and Mineralogy), Chief Researcher</p><p>450077; 16/2 K. Marx st.; Ufa</p></bio><email xlink:type="simple">Znamensky_Sergey@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 УФИЦ РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Geology of the Ufa Federal Research Centre 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>30</day><month>03</month><year>2025</year></pub-date><volume>27</volume><issue>1</issue><fpage>194</fpage><lpage>207</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Знаменский С.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Знаменский С.Е.</copyright-holder><copyright-holder xml:lang="en">Znamensky S.E.</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.geors.ru/jour/article/view/464">https://www.geors.ru/jour/article/view/464</self-uri><abstract><p>   Изучены петролого-геохимические особенности эффузивных и интрузивных пород Кутуевского Au-Cu-порфирового рудопроявления, расположенного в зоне Главного Уральского разлома на Южном Урале. Определение состава пород выполнено методами химического анализа, масс-спектрометрии с индуктивно-связанной плазмой на квадрупольном масс-спектрометре ELAN 9000, а также частично методом атомно-эмиссионной спектрометрии с индуктивно-связанной плазмой на спектрометре ICPE-9000. Установлено, что Au-Cu-порфировая минерализация рудопроявления ассоциирует с вулкано-интрузивным комплексом, объединяющим долериты, базальты, андезибазальты, их туфы, интрузии габбро-диоритов и диоритов. Все петрохимические типы пород имеют нормальную щелочность. Долериты принадлежат в основном к толеитовой, а базальты, андезибазальты и интрузивные породы – к переходной толеитовой–известково-щелочной сериям. Наиболее вероятным мантийным источником магм для них являлись шпинелевые перидотиты, предварительно метасоматизированные водными флюидами, возникшими при дегидратации пород слэба. На начальных стадиях магмообразования доминировал источник близкий по составу к деплетированной мантии, а в дальнейшем плавлению подвергался более обогащенный мантийный субстрат. В магмогенерации эффузивных и интрузивных пород существенную роль играла фракционная кристаллизация. На состав габбродиоритов и диоритов также оказывали влияние процессы коровой контаминации. Предполагается, что магматические породы рудопроявления образовались в задуговом бассейне фронтальной островной дуги позднеэмского возраста.</p></abstract><trans-abstract xml:lang="en"><p>   The petrological and geochemical features of effusive and intrusive rocks of the Kutuevsky Au-Cu porphyry ore occurrence located in the zone of the Main Ural Fault in the Southern Urals were studied. The composition of the rocks was determined by chemical analysis, mass spectrometry with inductively coupled plasma on an ELAN 9000 quadrupole mass spectrometer, and also partially by atomic emission spectrometry with inductively coupled plasma on an ICPE-9000 spectrometer. It has been established that the Au-Cu-porphyry mineralization of the ore occurrence is associated with an volcano-intrusive complex, combining dolerites, basalts, basaltic andesites, their tuffs, gabbro-diorite and diorite intrusions. All petrochemical rock types have normal alkalinity. Dolerites belong mainly to the tholeiitic series, and basalts, basaltic andesites and intrusive rocks belong to the transitional tholeiitic–calc-alkaline series. The most likely mantle source of magmas for them was spinel peridotites, previously metasomatized by aqueous fluids that arose during the dehydration of slab rocks. At the initial stages of magma formation, a source similar in composition to the depleted mantle dominated, and later a more enriched mantle substrate was subjected to melting. Fractional crystallization played a significant role in the magma generation of effusive and intrusive rocks. The composition of gabbro-diorites and diorites was also influenced by processes of crustal contamination. It is assumed that the igneous rocks of the ore occurrence were formed in the back-arc basin of the frontal island arc of Late Emian age.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Южный Урал</kwd><kwd>% Au-Cu-порфировое оруденение</kwd><kwd>шпинелевые перидотиты</kwd><kwd>коровая контаминация</kwd><kwd>задуговый бассейн</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Southern Urals</kwd><kwd>Au-Cu porphyry mineralization</kwd><kwd>spinel peridotites</kwd><kwd>crustal contamination</kwd><kwd>back-arc basin</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены в рамках Программы государственного заказа ИГ УФИЦ РАН (FMRS-2025-0014)</funding-statement><funding-statement xml:lang="en">The studies were carried out within the framework of the State Order Program of the IG UFRS RAS (FMRS-2025-0014)</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">Андреев А.В., Гирфанов М.М., Куликов Д.А., Мигачев И.Ф., Минина О.В., Авилова О.В., Красносельских А.А., Старостин И.А., Черемисин А.А. 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