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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.2023.3.21</article-id><article-id custom-type="elpub" pub-id-type="custom">geores-50</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>ГЕОЛОГИЧЕСКИЕ И МИНЕРАЛОГИЧЕСКИЕ ИССЛЕДОВАНИЯ, ПОИСК И РАЗВЕДКА МЕСТОРОЖДЕНИЙ ТВЕРДЫХ ПОЛЕЗНЫХ ИСКОПАЕМЫХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>GEOLOGICAL AND MINERALOGICAL RESEARCH, PROSPECTING AND EXPLORATION OF SOLID MINERAL DEPOSITS</subject></subj-group></article-categories><title-group><article-title>Модели формирования Ti-Fe-оксидной минерализации постостроводужных габброидных комплексов северной части Западно-Магнитогорской зоны (Южный Урал)</article-title><trans-title-group xml:lang="en"><trans-title>Origin of Ti-Fe-oxide mineralization of post-island-arc gabbroid complexes in the northern part of the West Magnitogorsk zone (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>Рахимов</surname><given-names>И. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Rakhimov</surname><given-names>I. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ильдар Рашитович Рахимов – кандидат геол.-минерал. наук, старший научный сотрудник</p><p>450077, Уфа, ул. Карла Маркса, д. 16/2</p></bio><bio xml:lang="en"><p>Ildar R. Rakhimov – Cand. Sci. (Geology and Mineralogy), Senior Researcher</p><p>16/2 Karl Marks st., Ufa, 450077</p></bio><email xlink:type="simple">rigel92@mail.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>Вишневский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vishnevskiy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрей Владиславович Вишневский – кандидат геол.- минерал. наук, старший научный сотрудник</p><p>630090, Новосибирск, пр. Ак. Коптюга, д. 3</p></bio><bio xml:lang="en"><p>Andrey V. Vishnevskiy – Cand. Sci. (Geology and Mineralogy), Senior Researcher</p><p>3 Koptyug Ave., 630090, Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></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><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт геологии и минералогии СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>06</day><month>04</month><year>2024</year></pub-date><volume>25</volume><issue>3</issue><fpage>175</fpage><lpage>190</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рахимов И.Р., Вишневский А.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Рахимов И.Р., Вишневский А.В.</copyright-holder><copyright-holder xml:lang="en">Rakhimov I.R., Vishnevskiy 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.geors.ru/jour/article/view/50">https://www.geors.ru/jour/article/view/50</self-uri><abstract><p>Проведены детальные минералого-геохимические исследования Ti-Fe-оксидов из габброидов наурузовского и утлыкташского постостроводужных комплексов Западно-Магнитогорской зоны Южного Урала. Установлена полигенная природа Ti-Fe-минерализации в породах Наурузовского силла, Утлыкташского расслоенного лополита и Уразовской интрузии. В Наурузовском массиве преобладает титаномагнетит, кристаллизовавшийся как из Ti-Fe-оксидной жидкости на раннемагматической стадии, так и из остаточного Ti-Fe-обогащённого силикатного расплава на промежуточной и позднемагматической стадиях (~970–800 °C). Наиболее богата Ti-Fe-оксидами (Fe2 O3 * – до 20.1 мас. %, TiO2 – до 1.6 мас. %, V – до 430 г/т) средняя зона силла, связанная с внедрением магмы, богатой вкрапленниками ортопироксена. В Утлыкташском лополите широко развиты и титаномагнетит, и ильменит, образующие наиболее богатые скопления в нижней части массива (Fe2 O3 * – до 18.1 мас. %, TiO2 – до 2.9 мас. %, V – до 545 г/т) благодаря гравитационному осаждению кристаллизующихся фаз. Габброиды Уразовской интрузии схожи по минеральному и химическому составу, но отличаются от Утлыкташского лополита закономерностями формирования Ti-Fe-минерализации, что требует отдельного изучения. В целом геологические условия формирования Наурузовского силла и Утлыкташского лополита достаточно благоприятны для формирования кондиционных Fe-Ti-руд.</p></abstract><trans-abstract xml:lang="en"><p>Detailed mineralogical and geochemical studies of Ti-Fe oxides from gabbroids of the Nauruz and Utlyktash post-subductional complexes, West Magnitogorsk Zone, South Urals, have been carried out. The polygenic nature of Ti-Fe mineralization in Nauruz sill, Utlyktash layered lopolith and Uraz intrusion rocks has been established. The Nauruz massif is dominated by titanomagnetite, which crystallized both from the Ti-Fe-oxide liquid at the early magmatic stage and from the residual Ti-Fe-enriched silicate melt at the intermediate and late magmatic stages (~970–800°C). The most rich in Ti-Fe oxides (Fe2 O3 * up to 20.1 wt %, TiO2 up to 1.6 wt %, and V up to 430 ppm) is the middle zone of the sill associated with intrusion of magma enriched in orthopyroxene phenocrysts. Both titanomagnetite and ilmenite are widespread in the Utlyktash lopolith, forming the richest accumulations in the lower part of the massif (Fe2 O3 * up to 18.1 wt %, TiO2 up to 2.9 wt %, and V up to 545 g/t) due to gravitational settling of crystallizing phases. The gabbroids of the Uraz intrusion are similar in mineral and chemical composition, but differ from the Utlyktash lopolith in the patterns of formation of Ti-Fe mineralization, which requires a special study. In general, the geological settings for the formation of the Nauruz sill and Utlyktash lopolith are quite favorable for the formation of economic Fe-Ti ores.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>геология</kwd><kwd>петрохимия</kwd><kwd>расплав</kwd><kwd>кристаллизация</kwd><kwd>титаномагнетит</kwd><kwd>ильменит</kwd><kwd>термометрия</kwd><kwd>оксибарометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>geology</kwd><kwd>chemistry</kwd><kwd>melt</kwd><kwd>crystallization</kwd><kwd>titanomagnetite</kwd><kwd>ilmenite</kwd><kwd>thermometry</kwd><kwd>oxybarometry</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках гранта РНФ № 22-77-10049.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the Russian Science Foundation grant no. 22-77-10049.</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">Анисимов И.С., Сопко Л.Н., Ямаев Ф.А., Калташева И.Ш., Мухаметов И.Ш. 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